subject:"Virtualization"

Re: Virtualization and older CPUs

2024-07-24 Thread Javier Perez

Thanks! Found it. Let me play with it.

On Tue, Jul 23, 2024 at 7:11 AM Sam Varshavchik 
wrote:

> Javier Perez writes:
>
> > »Hi.
> > How can I tell virt-manager to create a VM but with a CPU of an older
> > generation? I am trying to play an old game with wine but I keep
> getting
> > crashes. Something about UMIP and SIDTs and similar stuff.
>
> I did some VM tinkering earlier this year. My recollection is that virt-
> manager offers a canned set of configurations, tailored to the host OS
> that
> you're installing. There's a "Customize before install" option that
> offers
> additional tinkering, IIRC it drops you into the same "Show virtual
> hardware
> details" tab for an existing VM, I don't recall if you can pick a CPU
> there,
> at this stage.
>
> But once a VM is created, the "Show virtual hardware details" tab's "CPU"
> section is where you want to go. Untick the "Copy the host CPU
> configuration" option and you can pick a specific CPU to emulate.
>
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Re: Virtualization and older CPUs

2024-07-23 Thread Sam Varshavchik


Javier Perez writes:


»Hi.
How can I tell virt-manager to create a VM but with a CPU of an older  
generation? I am trying to play an old game with wine but I keep getting  
crashes. Something about UMIP and SIDTs and similar stuff.


I did some VM tinkering earlier this year. My recollection is that virt- 
manager offers a canned set of configurations, tailored to the host OS that  
you're installing. There's a "Customize before install" option that offers  
additional tinkering, IIRC it drops you into the same "Show virtual hardware  
details" tab for an existing VM, I don't recall if you can pick a CPU there,  
at this stage.


But once a VM is created, the "Show virtual hardware details" tab's "CPU"  
section is where you want to go. Untick the "Copy the host CPU  
configuration" option and you can pick a specific CPU to emulate.




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Re: Virtualization and older CPUs

2024-07-23 Thread Javier Perez

Thx!

On Tue, Jul 23, 2024, 04:08 Will McDonald  wrote:

> This looks like if might help lead you toward an answer...
>
>
> https://qemu-project.gitlab.io/qemu/system/qemu-cpu-models.html#libvirt-guest-xml
>
>
>
> On Tue, 23 Jul 2024, 09:54 Javier Perez,  wrote:
>
>> Hi.
>> How can I tell virt-manager to create a VM but with a CPU of an older
>> generation? I am trying to play an old game with wine but I keep getting
>> crashes. Something about UMIP and SIDTs and similar stuff.
>> My plan is, given that my CPU is 14th generation, probably I could get
>> away virtualizing a VM faking an older CPU without that feature.
>> My google-fu has not been that good, all I get is virtualizationn on old
>> machines instead of how to virtualize an older CPU in a newer machine.
>>
>> Thanks for pointing me on the right direction...
>>
>> --
>> --
>>  /\_/\
>>  |O O|  pepeb...@gmail.com
>>   Javier Perez
>>    While the night runs
>>    toward the day...
>>   m m   Pepebuho watches
>> from his high perch.
>> --
>> ___
>> users mailing list -- users@lists.fedoraproject.org
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Re: Virtualization and older CPUs

2024-07-23 Thread Will McDonald

And... now I'm on a machine with libvirt.

>From man virt-install:

>   --cpu
>   Syntax: --cpu
 MODEL[,+feature][,-feature][,match=MATCH][,vendor=VEN‐
>   DOR],...
>
>   Use --cpu=? to see a list of all available sub options.  Complete
de‐
>   tails at https://libvirt.org/formatdomain.html#elementsCPU

And then from that link:
https://libvirt.org/formatdomain.html#cpu-model-and-topology

> *model*>
> The content of the model element specifies CPU model requested by the
guest. > The list of available CPU models and *their definition can be
found in directory cpu_map,* > installed in libvirt's data directory.

Next, doing a find for cpu_map under /usr throws out
/usr/share/libvirt/cpu_map, which isn't owned by any package but is full of
XML filed owned by libvirt-libs:

wmcdonald@fedora:~$ ls -l /usr/share/libvirt/cpu_map/x8* | head
-rw-r--r--. 1 root root   160 Mar  1 11:19
/usr/share/libvirt/cpu_map/x86_486.xml
-rw-r--r--. 1 root root   724 Mar  1 11:19
/usr/share/libvirt/cpu_map/x86_athlon.xml
-rw-r--r--. 1 root root  1857 Mar  1 11:19
/usr/share/libvirt/cpu_map/x86_Broadwell-IBRS.xml
-rw-r--r--. 1 root root  1811 Mar  1 11:19
/usr/share/libvirt/cpu_map/x86_Broadwell-noTSX-IBRS.xml


On Tue, 23 Jul 2024 at 10:07, Will McDonald  wrote:

> This looks like if might help lead you toward an answer...
>
>
> https://qemu-project.gitlab.io/qemu/system/qemu-cpu-models.html#libvirt-guest-xml
>
>
>
> On Tue, 23 Jul 2024, 09:54 Javier Perez,  wrote:
>
>> Hi.
>> How can I tell virt-manager to create a VM but with a CPU of an older
>> generation? I am trying to play an old game with wine but I keep getting
>> crashes. Something about UMIP and SIDTs and similar stuff.
>> My plan is, given that my CPU is 14th generation, probably I could get
>> away virtualizing a VM faking an older CPU without that feature.
>> My google-fu has not been that good, all I get is virtualizationn on old
>> machines instead of how to virtualize an older CPU in a newer machine.
>>
>> Thanks for pointing me on the right direction...
>>
>> --
>> --
>>  /\_/\
>>  |O O|  pepeb...@gmail.com
>>   Javier Perez
>>    While the night runs
>>    toward the day...
>>   m m   Pepebuho watches
>> from his high perch.
>> --
>> ___
>> users mailing list -- users@lists.fedoraproject.org
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>
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Re: Virtualization and older CPUs

2024-07-23 Thread Will McDonald

This looks like if might help lead you toward an answer...

https://qemu-project.gitlab.io/qemu/system/qemu-cpu-models.html#libvirt-guest-xml



On Tue, 23 Jul 2024, 09:54 Javier Perez,  wrote:

> Hi.
> How can I tell virt-manager to create a VM but with a CPU of an older
> generation? I am trying to play an old game with wine but I keep getting
> crashes. Something about UMIP and SIDTs and similar stuff.
> My plan is, given that my CPU is 14th generation, probably I could get
> away virtualizing a VM faking an older CPU without that feature.
> My google-fu has not been that good, all I get is virtualizationn on old
> machines instead of how to virtualize an older CPU in a newer machine.
>
> Thanks for pointing me on the right direction...
>
> --
> --
>  /\_/\
>  |O O|  pepeb...@gmail.com
>   Javier Perez
>    While the night runs
>    toward the day...
>   m m   Pepebuho watches
> from his high perch.
> --
> ___
> users mailing list -- users@lists.fedoraproject.org
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Virtualization and older CPUs

2024-07-23 Thread Javier Perez

Hi.
How can I tell virt-manager to create a VM but with a CPU of an older
generation? I am trying to play an old game with wine but I keep getting
crashes. Something about UMIP and SIDTs and similar stuff.
My plan is, given that my CPU is 14th generation, probably I could get away
virtualizing a VM faking an older CPU without that feature.
My google-fu has not been that good, all I get is virtualizationn on old
machines instead of how to virtualize an older CPU in a newer machine.

Thanks for pointing me on the right direction...

-- 
--
 /\_/\
 |O O|  pepeb...@gmail.com
  Javier Perez
   While the night runs
   toward the day...
  m m   Pepebuho watches
from his high perch.
-- 
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Virtualization: Windows 32-bit i686 guest not working on Fedora 39 x86_64 ?

2024-03-10 Thread Franta Hanzlík via users

After 'dnf system-upgrade...' my machine from F37 x86_64 to F39, win7-32 
guest did not start due to BSOD 0x007B boot problem, while win10 
64-bit works fine on the same machine.

I then tried:

- a newly created virtual machine consisting only of Win7-32 or Win10-32 
installation ISO image freezes after start on the first inquiry window 
- the keyboard and mouse do not respond.

- the same way created virtual win10 64-bit installation CD ISO works 
correctly.

- I received the same behavior on a cleqan, freshly installed F39 system 
 - Win7 or Win10 32-bit did not work, but 64-bit without problems.

- on a new installation of F38 - Win7 guest works without problems, 
as well as both guest installations of 32-bit windows from the CD ISO 
image.

On F38 is libvirt-daemon-9.0.0-4.fc38.x86_64 + qemu-kvm-7.2.8-1.fc38.x86_64
On F39 is libvirt-daemon-9.7.0-2.fc39.x86_64 + qemu-kvm-8.1.3-4.fc39.x86_64

Does anyone have any idea where the problem could be?
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Fedora 39 Virtualization Test Day 2023-10-09

2023-10-09 Thread Sumantro Mukherjee

Hey All,

We are going to test all forms of virtualization possible in Fedora.
The test day [0] will focus on testing Fedora or your favourite distro
inside a bare-metal implementation of Fedora running Boxes, KVM,
VirtualBox, and whatever you have.
The general features of installing the OS and working with it are
outlined in the test cases which you will find on the results page
[1].

[0] http://fedoraproject.org/wiki/Test_Day:2023-10-09_Virtualization
[1] https://testdays.fedoraproject.org/events/171


-- 
//sumantro
Fedora QE
TRIED AND PERSONALLY TESTED, ERGO TRUSTED
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Re: Virtualization Recommendations?

2022-07-14 Thread Mauricio Tavares

On Tue, Jul 12, 2022 at 12:31 PM Patrick O'Callaghan
 wrote:
>
> On Tue, 2022-07-12 at 12:07 -0400, Tom Horsley wrote:
> > On Tue, 12 Jul 2022 09:38:36 -0600
> > Sbob wrote:
> >
> > > Are there others?
> >
> > The native linux qemu/libvirt stuff works fine for me.
>
> Agreed. It's also the only game in town if you want to do GPU pass-
> through. On the downside, the documentation is spread out over a number
> of different projects (QEMU+KVM+libvirt) and not focused on the
> beginner. I think VirtualBox is much better in that respect.
>
  Not only GPU but any kind of passthrough. I need PCI/PCIe
passthrough for my research like politicians need clueless voters.
Doing that on ESXi was, to put it as nicely as I can, not possible
specially at the level I needed.

> poc
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Re: Virtualization Recommendations?

2022-07-14 Thread Patrick O'Callaghan

On Wed, 2022-07-13 at 16:03 -0700, Samuel Sieb wrote:
> On 2022-07-13 03:07, Patrick O'Callaghan wrote:
> > On Tue, 2022-07-12 at 17:37 -0400, Tom Horsley wrote:
> > > On Tue, 12 Jul 2022 22:31:44 +0100
> > > Patrick O'Callaghan wrote:
> > > 
> > > > try
> > > > figuring out how to share files between host and guest
> > > 
> > > I just use the same technique I'd use for a "real" machine: NFS
> > > or
> > > SMB :-).
> > 
> > Indeed, however that isn't obvious from the docs, especially for
> > those
> > coming to virt-manager from VBox, where it's much more pointy-
> > clicky.
> > It's also likely to involve fiddling with firewall rules (at least
> > it
> > was when I did it). Given that this is likely to be a basic
> > requirement
> > for many users, I feel it should be made easier, or at least better
> > documented, especially as there's more than one way to do it. See
> > for
> > example:
> 
> I've never had that requirement until recently when I was working
> with a 
> windows VM and needed to get a file in (or maybe out).  I ended up
> using 
> winscp which was much simpler.  I'm usually using Fedora in the VMs,
> so 
> transferring files is easy.

*Transferring* files and *sharing* files are not the same thing. I
specifically say "sharing" because I mean having two (or more) systems
accessing a common pool of files, not manually copying them back and
forth.

poc
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Re: Virtualization Recommendations?

2022-07-14 Thread George N. White III

On Wed, Jul 13, 2022 at 8:03 PM Samuel Sieb  wrote:

> On 2022-07-13 03:07, Patrick O'Callaghan wrote:
> > On Tue, 2022-07-12 at 17:37 -0400, Tom Horsley wrote:
> >> On Tue, 12 Jul 2022 22:31:44 +0100
> >> Patrick O'Callaghan wrote:
> >>
> >>> try
> >>> figuring out how to share files between host and guest
> >>
> >> I just use the same technique I'd use for a "real" machine: NFS or
> >> SMB :-).
> >
> > Indeed, however that isn't obvious from the docs, especially for those
> > coming to virt-manager from VBox, where it's much more pointy-clicky.
> > It's also likely to involve fiddling with firewall rules (at least it
> > was when I did it). Given that this is likely to be a basic requirement
> > for many users, I feel it should be made easier, or at least better
> > documented, especially as there's more than one way to do it. See for
> > example:
>
> I've never had that requirement until recently when I was working with a
> windows VM and needed to get a file in (or maybe out).  I ended up using
> winscp which was much simpler.  I'm usually using Fedora in the VMs, so
> transferring files is easy.
>

Coming from a job where Windows was the "corporate standard", I've often
needed to move files between Windows and linux. Windows 10 provides
C:\Windows\System32\OpenSSH\sftp.exe, and rsync is available as a
"standalone" install based on Cygwin, and from Msys2.   Rsync does need
some care with advanced options due to the differences in the underlying
filesystems  (well documented in Cygwin).

My former work was all IPv4, IPv6 support in Windows has some gaps (e.g.,
WSL2).

-- 
George N. White III
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Re: Virtualization Recommendations?

2022-07-13 Thread Samuel Sieb


On 2022-07-13 03:07, Patrick O'Callaghan wrote:

On Tue, 2022-07-12 at 17:37 -0400, Tom Horsley wrote:

On Tue, 12 Jul 2022 22:31:44 +0100
Patrick O'Callaghan wrote:


try
figuring out how to share files between host and guest


I just use the same technique I'd use for a "real" machine: NFS or
SMB :-).


Indeed, however that isn't obvious from the docs, especially for those
coming to virt-manager from VBox, where it's much more pointy-clicky.
It's also likely to involve fiddling with firewall rules (at least it
was when I did it). Given that this is likely to be a basic requirement
for many users, I feel it should be made easier, or at least better
documented, especially as there's more than one way to do it. See for
example:


I've never had that requirement until recently when I was working with a 
windows VM and needed to get a file in (or maybe out).  I ended up using 
winscp which was much simpler.  I'm usually using Fedora in the VMs, so 
transferring files is easy.

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Re: Virtualization Recommendations?

2022-07-13 Thread Patrick O'Callaghan

On Tue, 2022-07-12 at 17:37 -0400, Tom Horsley wrote:
> On Tue, 12 Jul 2022 22:31:44 +0100
> Patrick O'Callaghan wrote:
> 
> > try
> > figuring out how to share files between host and guest
> 
> I just use the same technique I'd use for a "real" machine: NFS or
> SMB :-).

Indeed, however that isn't obvious from the docs, especially for those
coming to virt-manager from VBox, where it's much more pointy-clicky.
It's also likely to involve fiddling with firewall rules (at least it
was when I did it). Given that this is likely to be a basic requirement
for many users, I feel it should be made easier, or at least better
documented, especially as there's more than one way to do it. See for
example:

https://libvirt.org/kbase/virtiofs.html

poc
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Re: Virtualization Recommendations?

2022-07-13 Thread ja

On Tue, 2022-07-12 at 09:38 -0600, Sbob wrote:
> All;
> 
> 
> I am frustrated with VMware, I am running Fedora35 and it refuses to 
> compile since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a 
> kernel 3+ updates behind. At this point I have to exclude the kernel 
> from any updates so the only kernel that VMware works with does not get 
> removed.
> 
> 
> Are there any other virtualization tools that would continue to work, or 
> at least continue to work with more recent kernels? Is Xen an option? 
> Are there others?
> 
> 
> Thanks in advance
> 

I have been using this for well over a year with VMware Workstaion
https://github.com/mkubecek/vmware-host-modules

Currently using
ja@harting ~ 1$ vmware -v
VMware Workstation 16.2.3 build-19376536
ja@harting ~ 3$ uname -r
5.18.10-200.fc36.x86_64


My idiots guide to myself looks like this - no guarantees!
I just cut/paste the commands into a bash terminal in suitable lumps.
It should be a script!

The following procedure works cleanly

Part 1
Down load the master component from github (Do this "Only Once"!)
mkdir /global/db/sw/VMware_16/mkubecek
https://github.com/mkubecek/vmware-host-modules Use the green "Code" 
button to download the zip version
vmware-host-modules-master.zip
unzip "in situ"
Read the Install notes if required
/global/db/sw/VMware_16/mkubecek/vmware-host-modules-master/Install
or just follow the following recipe

//-
Part 2
As user ja
Version="16.2.3"
cd /global/db/sw/VMware_16/mkubecek/Patches
wget 
https://github.com/mkubecek/vmware-host-modules/archive/workstation-$Version.tar.gz
If required
tar -xzf workstation-$Version.tar.gz
If 
required
cd 
/global/db/sw/VMware_16/mkubecek/Patches/vmware-host-modules-workstation-$Version

make clean maybe
make
su
make install

vmware  //To test 
things are OK
//Exit 
from vmware
Must do this to be sure
systemctl restart vmware.service
systemctl restart vmtoolsd.service
systemctl restart  vmware-USBArbitrator.service
exit

Test a virtual machine
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Re: Virtualization Recommendations?

2022-07-12 Thread ToddAndMargo via users


On 7/12/22 08:38, Sbob wrote:

All;


I am frustrated with VMware, I am running Fedora35 and it refuses to 
compile since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a 
kernel 3+ updates behind. At this point I have to exclude the kernel 
from any updates so the only kernel that VMware works with does not get 
removed.



Are there any other virtualization tools that would continue to work, or 
at least continue to work with more recent kernels? Is Xen an option? 
Are there others?



Thanks in advance


# dnf install kvm virt-manager libvirt
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Re: Virtualization Recommendations?

2022-07-12 Thread Sam Varshavchik


Sbob writes:


All;


I am frustrated with VMware, I am running Fedora35 and it refuses to compile  
since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a kernel 3+  
updates behind. At this point I have to exclude the kernel from any updates  
so the only kernel that VMware works with does not get removed.



Are there any other virtualization tools that would continue to work, or at  
least continue to work with more recent kernels? Is Xen an option? Are there  
others?



Thanks in advance


dnf install virt-manager

?

qemu and virt-manager works fine for me. Win10 a bit sluggish, but is  
perfectly fine for my purposes.


I even got Win10 to work with UEFI and TPM emulation, when trying to update  
it to Win11. In the end I couldn't because of the CPU requirement, and I'm  
just too lazy to figure out how to hack around it.


pgp4YTpTDzXLI.pgp
Description: PGP signature
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Re: Virtualization Recommendations?

2022-07-12 Thread Tom Horsley

On Tue, 12 Jul 2022 22:31:44 +0100
Patrick O'Callaghan wrote:

> try
> figuring out how to share files between host and guest

I just use the same technique I'd use for a "real" machine: NFS or SMB :-).
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Re: Virtualization Recommendations?

2022-07-12 Thread Patrick O'Callaghan

On Tue, 2022-07-12 at 09:58 -0700, Samuel Sieb wrote:
> On 2022-07-12 09:29, Patrick O'Callaghan wrote:
> > On Tue, 2022-07-12 at 12:07 -0400, Tom Horsley wrote:
> > > On Tue, 12 Jul 2022 09:38:36 -0600
> > > Sbob wrote:
> > > 
> > > > Are there others?
> > > 
> > > The native linux qemu/libvirt stuff works fine for me.
> > 
> > Agreed. It's also the only game in town if you want to do GPU pass-
> > through. On the downside, the documentation is spread out over a
> > number
> > of different projects (QEMU+KVM+libvirt) and not focused on the
> > beginner. I think VirtualBox is much better in that respect.
> 
> It's been extremely rare that I need to use any documentation for it
> and 
> only because I'm trying to do something unusual.  Normally, it just 
> works with no problems.  Run virt-manager to get started.

Just one example: using only the libvirt docs and virt-manager GUI
(which appears to be essentially
undocumented, https://virt-manager.org/ being largely useless), try
figuring out how to share files between host and guest. Compare this
with the instructions for VirtualBox.

poc
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Re: Virtualization Recommendations?

2022-07-12 Thread Samuel Sieb


On 2022-07-12 09:29, Patrick O'Callaghan wrote:

On Tue, 2022-07-12 at 12:07 -0400, Tom Horsley wrote:

On Tue, 12 Jul 2022 09:38:36 -0600
Sbob wrote:


Are there others?


The native linux qemu/libvirt stuff works fine for me.


Agreed. It's also the only game in town if you want to do GPU pass-
through. On the downside, the documentation is spread out over a number
of different projects (QEMU+KVM+libvirt) and not focused on the
beginner. I think VirtualBox is much better in that respect.


It's been extremely rare that I need to use any documentation for it and 
only because I'm trying to do something unusual.  Normally, it just 
works with no problems.  Run virt-manager to get started.


There's also Gnome Boxes which might be a simpler way to start, but it's 
still the same VM system underneath.

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Re: Virtualization Recommendations?

2022-07-12 Thread Sbob

Thanks!

On 7/12/22 10:05, Mark C. Allman wrote:

On 7/12/22 11:38, Sbob wrote:

All;

I am frustrated with VMware, I am running Fedora35 and it refuses to
compile since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a
kernel 3+ updates behind. At this point I have to exclude the kernel
from any updates so the only kernel that VMware works with does not
get removed.

Are there any other virtualization tools that would continue to work,
or at least continue to work with more recent kernels? Is Xen an
option? Are there others?

Thanks in advance

I completely share your frustration. I run Windows 11 in a VM. I've
looked into switching in the past but ran into all kinds of license
issues for Windows and other tools. All the tools think I'm running
everything on a different system. I tried to explain to Microsoft what
I was doing -- no luck. Like talking to a brick wall.

I wrote up the patches for kernel 5.18. Check out
https://medium.com/@allmanpc/vmware-workstation-player-16-2-and-linux-kernels-5-18-5cdc10a4d32a.
It doesn't fix the larger problem but it would help to get around the
immediate issue.

*Mark C. Allman, PMP, CSM, SSM*
Sr. Project Manager/Scrum Master, Allman Professional Consulting,
Inc., www.allmanpc.com <http://www.allmanpc.com>
Founder, See How You Ski, www.seehowyouski.com
<http://www.seehowyouski.com>

Ultra Runner, www.bostonorbust.run <http://www.bostonorbust.run>
617-947-4263, Twitter: @allmanpc, LinkedIn:
www.linkedin.com/in/allmanpc <http://www.linkedin.com/in/allmanpc>

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Re: Virtualization Recommendations?

2022-07-12 Thread Mike Wright


On 7/12/22 08:38, Sbob wrote:

All;


I am frustrated with VMware, I am running Fedora35 and it refuses to 
compile since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a 
kernel 3+ updates behind. At this point I have to exclude the kernel 
from any updates so the only kernel that VMware works with does not get 
removed.



Are there any other virtualization tools that would continue to work, or 
at least continue to work with more recent kernels? Is Xen an option? 


If you're interested in running servers and don't need a gui or audio 
and ssh is good enough I'd recommend LXC.  Lightweight container system 
that shares the kernel and uses cgroups for resource limiting and 
isolation.  Can accept pass-thru devices and/or virtual devices.


I've been using LXC for years and it has never crashed although I have 
managed to crash a VM or two while experimenting :/


It doesn't do Windows.

:m
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Re: Virtualization Recommendations?

2022-07-12 Thread Tom Horsley

On Tue, 12 Jul 2022 17:29:58 +0100
Patrick O'Callaghan wrote:

> It's also the only game in town if you want to do GPU pass-
> through.

And if you need 3D graphics in your Windows VM, you have to do GPU
pass through :-). (Unless various virtual 3D drivers for Windows
have made progress I haven't noticed).
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Re: Virtualization Recommendations?

2022-07-12 Thread Patrick O'Callaghan

On Tue, 2022-07-12 at 12:07 -0400, Tom Horsley wrote:
> On Tue, 12 Jul 2022 09:38:36 -0600
> Sbob wrote:
> 
> > Are there others?
> 
> The native linux qemu/libvirt stuff works fine for me.

Agreed. It's also the only game in town if you want to do GPU pass-
through. On the downside, the documentation is spread out over a number
of different projects (QEMU+KVM+libvirt) and not focused on the
beginner. I think VirtualBox is much better in that respect.

poc
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Re: Virtualization Recommendations?

2022-07-12 Thread Tom Horsley

On Tue, 12 Jul 2022 09:38:36 -0600
Sbob wrote:

> Are there others?

The native linux qemu/libvirt stuff works fine for me.
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Re: Virtualization Recommendations?

2022-07-12 Thread Mark C. Allman via users

On 7/12/22 11:38, Sbob wrote:

All;

Are there any other virtualization tools that would continue to work,
or at least continue to work with more recent kernels? Is Xen an
option? Are there others?

Thanks in advance

I completely share your frustration. I run Windows 11 in a VM. I've
looked into switching in the past but ran into all kinds of license
issues for Windows and other tools. All the tools think I'm running
everything on a different system. I tried to explain to Microsoft what I
was doing -- no luck. Like talking to a brick wall.

*Mark C. Allman, PMP, CSM, SSM*
Sr. Project Manager/Scrum Master, Allman Professional Consulting, Inc.,
www.allmanpc.com <http://www.allmanpc.com>

Founder, See How You Ski, www.seehowyouski.com <http://www.seehowyouski.com>
Ultra Runner, www.bostonorbust.run <http://www.bostonorbust.run>
617-947-4263, Twitter: @allmanpc, LinkedIn: www.linkedin.com/in/allmanpc
<http://www.linkedin.com/in/allmanpc>

Virtualization Recommendations?

2022-07-12 Thread Sbob


All;


I am frustrated with VMware, I am running Fedora35 and it refuses to 
compile since kernel 5.17.14-200.fc35.x86_64 so I am stuck running a 
kernel 3+ updates behind. At this point I have to exclude the kernel 
from any updates so the only kernel that VMware works with does not get 
removed.



Are there any other virtualization tools that would continue to work, or 
at least continue to work with more recent kernels? Is Xen an option? 
Are there others?



Thanks in advance

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-27 Thread Chris Murphy

On Tue, Apr 9, 2019 at 5:52 AM Dario Lesca  wrote:
>
> On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29 workstation 
> (all work fine! ... thank to all!)
> and into qemu/kvm/libvirtd via virt-manager I have install a win10pro with 
> all virtio driver (disk, network, ecc..).
>
> After few days my friend say me that the win10 is slow and less efficient 
> than same installation on another PC with VirtualBox.
> He told me "virtualbox is better and faster"

What backing storage is the VM using? qcow2, raw, LVM? If it's a file,
what filesystem is it on?

It's worth experimenting with the virtio disk "cache mode" setting, in
virt-manager under advanced > performance options. I use unsafe, which
is bad advice to give because it really is not safe if there's a
crash, good chance the guest filesystem is toast. But it's a lot
faster. And I consider my VM's throwaway.  There may be another cache
setting that's not so dangerous but also doesn't penalize like the
default. I think what you want is cache=writeback if it's a file, and
cache=none if it's LVM. I would say test both and pick the one with
better performance.

https://doc.opensuse.org/documentation/leap/virtualization/html/book.virt/cha.cachemodes.html#cachemodes.descr

Note that some of the cache modes must be paired with a specific IO
mode, e.g. unsafe only works with threads.

-- 
Chris Murphy
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-24 Thread Dario Lesca

Il giorno mer, 24/04/2019 alle 11.26 +0100, Patrick O'Callaghan ha
scritto:
> You haven't said which version of Win10 your friend has

Win10pro

Thanks


-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-24 Thread Patrick O'Callaghan

On Wed, 2019-04-24 at 11:07 +0200, Dario Lesca wrote:
> Il giorno mar, 23/04/2019 alle 21.39 -0700, Gordon Messmer ha scritto:
> > Is the user interfacing with the VM through virt-manager, or over
> > RDP?  My experience has been that, although Spice is better than VNC,
> > interfacing with the virtual console is noticeably less responsive
> > than RDP.
> 
> My friend use virt-manager spice console, and the drive is a 7.2 rpm
> disk ext4 parted (no LVM)  
> ID-1: /dev/sda vendor: Toshiba model: MQ04ABF100 size: 931.51 GiB
> [alb@vivobook-pro ~]$ df -T /virt/win10.qcow2File systemTipo 1K-
> blocchi Usati Disponib. Uso% Montato
> su/dev/sda2  ext4  337375272 120006960 200160916  38% /virt
> Then, I will recommend my friend to use RDP
> Thanks

You haven't said which version of Win10 your friend has, but note that
RDP requires at least Win10 Pro.

poc
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-24 Thread Dario Lesca

Il giorno mar, 23/04/2019 alle 21.39 -0700, Gordon Messmer ha scritto:
> Is the user interfacing with the VM through virt-manager, or over
> RDP?  My experience has been that, although Spice is better than VNC,
> interfacing with the virtual console is noticeably less responsive
> than RDP.

My friend use virt-manager spice console, and the drive is a 7.2 rpm
disk ext4 parted (no LVM)  
ID-1: /dev/sda vendor: Toshiba model: MQ04ABF100 size: 931.51 GiB
[alb@vivobook-pro ~]$ df -T /virt/win10.qcow2File systemTipo 1K-
blocchi Usati Disponib. Uso% Montato
su/dev/sda2  ext4  337375272 120006960 200160916  38% /virt
Then, I will recommend my friend to use RDP
Thanks

-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-23 Thread Gordon Messmer


On 4/10/19 8:18 AM, Dario Lesca wrote:

Il giorno mar, 09/04/2019 alle 19.53 -0700, Gordon Messmer ha scritto:

Can you post the content of /etc/libvirt/qemu/.xml?


see attach.



It looks like this host is using virtio drivers for disk and network, 
and that's usually the important bits.  It's possible that qcow2 on a 
journaled drive is slower than expected.  I typically use LVM block 
devices to minimize overhead.  I'm not sure how much difference that'll 
make.


Is the user interfacing with the VM through virt-manager, or over RDP?  
My experience has been that, although Spice is better than VNC, 
interfacing with the virtual console is noticeably less responsive than RDP.

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-11 Thread Dario Lesca

Il giorno gio, 11/04/2019 alle 08.26 -0500, Rex Dieter ha scritto:
> Use virtio drivers?

Yes, all without video driver
Tomorrow I try other suggested options

Thanks


-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-11 Thread Patrick O'Callaghan

On Thu, 2019-04-11 at 08:26 -0500, Rex Dieter wrote:
> Dario Lesca wrote:
> 
> > On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29
> > workstation (all work fine! ... thank to all!)
> > and into qemu/kvm/libvirtd via virt-manager I have install a win10pro
> > with all virtio driver (disk, network, ecc..).
> > 
> > After few days my friend say me that the win10 is slow and less
> > efficient than same installation on another PC with  VirtualBox.
> >  He told me "virtualbox is better and faster"
> > 
> > I have heard this statement in other cases in the past and the only
> > solution (sig!) was to replace qemu with virtualbox.
> > 
> > There is some other solution to optimize qemu/kvm on Fedora to increase
> > the performance for win10 VM?
> 
> Use virtio drivers?
> 
> https://docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/index.html

The OP says he's using virtio drivers.

opoc
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-11 Thread Rex Dieter

Dario Lesca wrote:

> On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29
> workstation (all work fine! ... thank to all!)
> and into qemu/kvm/libvirtd via virt-manager I have install a win10pro
> with all virtio driver (disk, network, ecc..).
> 
> After few days my friend say me that the win10 is slow and less
> efficient than same installation on another PC with  VirtualBox.
>  He told me "virtualbox is better and faster"
> 
> I have heard this statement in other cases in the past and the only
> solution (sig!) was to replace qemu with virtualbox.
> 
> There is some other solution to optimize qemu/kvm on Fedora to increase
> the performance for win10 VM?

Use virtio drivers?

https://docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/index.html

-- Rex
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-10 Thread ToddAndMargo via users

On 4/9/19 4:51 AM, Dario Lesca wrote:
On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29
workstation (all work fine! ... thank to all!)
and into qemu/kvm/libvirtd via virt-manager I have install a win10pro
with all virtio driver (disk, network, ecc..).

After few days my friend say me that the win10 is slow and less
efficient than same installation on another PC with VirtualBox.

He told me "virtualbox is better and faster"

I have heard this statement in other cases in the past and the only
solution (sig!) was to replace qemu with virtualbox.

There is some other solution to optimize qemu/kvm on Fedora to increase
the performance for win10 VM?

Someone has some performance comparison between the two virtualization
system?

Many thanks

Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)

Hi Dario,

Keep in mind that Windows 10 runs at about 1/2 the speed that
Fedora runs at. No fooling. Windows 10 is a dog. If you
were to install Windows 10 natively on your machine it
would only run about 10% faster than it does in qemu-kvm.
KVM (Kernel Virtual Machine) is know for its performance
as it works at the kernel level.

So, unless you really goofed up your VM's configuration, the
problem is going to be Windows 10 itself. I will attach my
Windows 10 XML file at the end of this letter:

Here are some sites for speeding up Windows 10:

https://fossbytes.com/speed-up-windows-performance-tips/

https://www.cnet.com/news/black-hole-picture-revealed-first-look-from-across-the-universe/

HTH,
-T

Oh wow. I managed to get through this entire letter without calling it
Windows Nein. Opps, I just did. Rats!

KVM-W10
08acc96b-e96d-4ab7-afd0-6d6f25c6a731
4194304
4194304
2

hvm

Nehalem

destroy
restart
destroy

/usr/bin/qemu-kvm

function='0x7'/>

function='0x0' multifunction='on'/>

function='0x1'/>

function='0x2'/>

function='0x1'/>

function='0x0'/>

heads='1' primary='yes'/>
function='0x0'/>

function='0x0'/>

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-10 Thread Dario Lesca

Il giorno mar, 09/04/2019 alle 19.53 -0700, Gordon Messmer ha scritto:
> Can you post the content of /etc/libvirt/qemu/.xml?

see attach.

Thanks

-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)


win10.xml
Description: XML document
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-10 Thread Dario Lesca

Il giorno mar, 09/04/2019 alle 13.16 -0700, Samuel Sieb ha scritto:
> > [ ] qxl/ - QXL graphics driver for Windows 7 and earlier. (build
> > virtio-win-0.1.103-1 and later)
> > [ ] qxldod/ - QXL graphics driver for Windows 8 and later. (build
> > virtio-win-0.1.103-2 and later)
> 
> Why don't you install the graphics drivers?  That could definitely
> cause a slow down.

Thank for the suggest, I'll try it.


-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Gordon Messmer


On 4/9/19 4:51 AM, Dario Lesca wrote:
Someone has some performance comparison between the two virtualization 
system?



Can you post the content of /etc/libvirt/qemu/.xml?
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Samuel Sieb


On 4/9/19 1:41 PM, Tom Horsley wrote:

On Tue, 9 Apr 2019 13:20:05 -0700
Samuel Sieb wrote:


what specifically is the
slowdown?


 From my highly non-scientific and inexact testing, the
virtual disks have better I/O performance in virtualbox
and in vmware. Since qemu has 47 gazillion different
format virtual disks, I have no idea which one is the
best performance (raw, qcow2, something else?)


That should only matter if you're doing something disk intensive.  I 
used Windows 7 in a VM a while back and didn't have any issues with it. 
I wasn't doing anything that required a lot of performance though.



Also, there is no 3D graphics support in the video
driver (though I see a mysterious checkbox in the
latest virt-manager that says something about 3D and
has a warning triangle next to it). So if the windows
program you are running is willing to fall back to
pure software 3D, the performance will be dreadful
(though windows programs I've tried have simply refused
to run without hardware 3D).


I think the only 3D support is if the guest is Linux with the 3D virtio 
driver.

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Patrick O'Callaghan

On Tue, 2019-04-09 at 16:41 -0400, Tom Horsley wrote:
> On Tue, 9 Apr 2019 13:20:05 -0700
> Samuel Sieb wrote:
> 
> > what specifically is the 
> > slowdown?
> 
> From my highly non-scientific and inexact testing, the
> virtual disks have better I/O performance in virtualbox
> and in vmware. Since qemu has 47 gazillion different
> format virtual disks, I have no idea which one is the
> best performance (raw, qcow2, something else?)
> 
> Also, there is no 3D graphics support in the video
> driver (though I see a mysterious checkbox in the
> latest virt-manager that says something about 3D and
> has a warning triangle next to it). So if the windows
> program you are running is willing to fall back to
> pure software 3D, the performance will be dreadful
> (though windows programs I've tried have simply refused
> to run without hardware 3D).

The problem with 3D support is essentially that you need to use the
proprietary Windows drivers with direct access to the GPU (because GPUs
themselves aren't virtualizable). There is a way round it using VFIO
and video passthrough (I use it for gaming) but it requires a lot of
setup and depends on your specific hardware, BIOS and chipset.

poc
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Tom Horsley

On Tue, 9 Apr 2019 13:20:05 -0700
Samuel Sieb wrote:

> what specifically is the 
> slowdown?

From my highly non-scientific and inexact testing, the
virtual disks have better I/O performance in virtualbox
and in vmware. Since qemu has 47 gazillion different
format virtual disks, I have no idea which one is the
best performance (raw, qcow2, something else?)

Also, there is no 3D graphics support in the video
driver (though I see a mysterious checkbox in the
latest virt-manager that says something about 3D and
has a warning triangle next to it). So if the windows
program you are running is willing to fall back to
pure software 3D, the performance will be dreadful
(though windows programs I've tried have simply refused
to run without hardware 3D).
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Samuel Sieb


On 4/9/19 4:51 AM, Dario Lesca wrote:
After few days my friend say me that the win10 is slow and less 
efficient than same installation on another PC with VirtualBox.

He told me "virtualbox is better and faster"

I have heard this statement in other cases in the past and the only 
solution (sig!) was to replace qemu with virtualbox.


If you can compare them on similar hardware, what specifically is the 
slowdown?  Make sure that the VM configuration is set to create virtio 
devices and that the Windows virtio drivers are being used.

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Samuel Sieb


On 4/9/19 7:51 AM, Dario Lesca wrote:

[ ] qxl/ - QXL graphics driver for Windows 7 and earlier. (build 
virtio-win-0.1.103-1 and later)

[ ] qxldod/ - QXL graphics driver for Windows 8 and later. (build 
virtio-win-0.1.103-2 and later)


Why don't you install the graphics drivers?  That could definitely cause 
a slow down.

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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Greg Woods

On Tue, Apr 9, 2019 at 5:52 AM Dario Lesca  wrote:

>
> There is some other solution to optimize qemu/kvm on Fedora to increase
> the performance for win10 VM?
>

I'd like to know as well. I have tried KVM periodically, but the
performance is always horrible with Windows VMs, and since having a place
to run all that "windows-only" software is my primary reason for using VMs,
I have always been forced back to VirtualBox.

--Greg
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Tom Horsley

On Tue, 09 Apr 2019 16:51:29 +0200
Dario Lesca wrote:

> is this correct ? or I must install also other drivers?

That looks like all the ones I have, so you probably do
have about as good performance as you are likely to get
(as far as I know anyway, lots of people probably know
more about qemu that I do :-).
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Dario Lesca

Il giorno mar, 09/04/2019 alle 09.06 -0400, Tom Horsley ha scritto:
> You should certainly install all the redhat virtualdrivers for disks
> and network if you haven't already:
> https://www.linux-kvm.org/page/WindowsGuestDrivers

Thank for reply, but  when I have install w10 I have mount the virtio-
drivers.iso CD

https://docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/index.html

and install this virtio driver.


[X] NetKVM/ - Virtio network driver[X] viostor/ - Virtio block driver[
] vioscsi/ - Virtio Small Computer System Interface (SCSI) driver[ ]
viorng/ - Virtio RNG driver[X] vioser/ - Virtio serial driver[X]
Balloon/ - Virtio memory balloon driver[ ] qxl/ - QXL graphics driver
for Windows 7 and earlier. (build virtio-win-0.1.103-1 and later)[ ]
qxldod/ - QXL graphics driver for Windows 8 and later. (build virtio-
win-0.1.103-2 and later)[ ] pvpanic/ - QEMU pvpanic device driver
(build virtio-win-0.1.103-2 and later)[ ] guest-agent/ - QEMU Guest
Agent 32bit and 64bit MSI installers[ ] qemupciserial/ - QEMU PCI
serial device driver

is this correct ? or I must install also other drivers?

Thanks

-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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Re: Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Tom Horsley

On Tue, 09 Apr 2019 13:51:27 +0200
Dario Lesca wrote:

> There is some other solution to optimize qemu/kvm on Fedora to increase
> the performance for win10 VM?

You should certainly install all the redhat virtual
drivers for disks and network if you haven't already:

https://www.linux-kvm.org/page/WindowsGuestDrivers
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Fedora Virtualization (quemu/kvm) vs Virtualbox

2019-04-09 Thread Dario Lesca

On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29
workstation (all work fine! ... thank to all!)
and into qemu/kvm/libvirtd via virt-manager I have install a win10pro
with all virtio driver (disk, network, ecc..).

After few days my friend say me that the win10 is slow and less
efficient than same installation on another PC with  VirtualBox.
 He told me "virtualbox is better and faster"

I have heard this statement in other cases in the past and the only
solution (sig!) was to replace qemu with virtualbox.

There is some other solution to optimize qemu/kvm on Fedora to increase
the performance for win10 VM?

Someone has some performance comparison between the two virtualization
system?

Many thanks


-- 
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
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using "dnf group remove" to totally remove all virtualization?

2018-04-06 Thread Robert P. J. Day


  a couple more dnf/virtualization questions and that should be it.
first, is there any option, when removing a package group with "dnf
group remove", to remove even those packages that were installed
manually? last time i looked (and i believe i just reconfirmed that),
dnf keeps track of which packages were installed manually so that,
when you remove a package group, it will *not* remove packages that
had been installed manually. i'm not aware of any way around that, but
perhaps i missed something in the man page. or maybe there's a dnf
plugin?

  finally, the reason i'm asking about this is that i'm writing a
tutorial on how to get started with virtualization on fedora, and i
wanted to start from the perspective of a system that had absolutely
no virtualization support on it whatever, and show what one could do
as one added one virtualization component at a time; hence, my attempt
at trying to remove the entire Virtualization package group (even
though i don't think that would come close to getting rid of all
virtualization).

  by the way, that last paragraph inspires the question -- does a
regular fedora system *require* even the smallest aspect of
virtualization to run properly? as in, if i had no need for
virtualization support, is it feasible to remove every single
virt-related package from the machine and not break something?

rday
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Re: virtualization on f20

2014-02-05 Thread Robert P. J. Day

On Wed, 5 Feb 2014, Mike Wright wrote:

> Hi all,
>
> Just tried fedora 20 running off a 1G thumb drive and am impressed with its
> speed.  Looks like a lot of things are coming together.  Good job.
>
> I'm most interested in virtualization.  yum didn't show any package groups
> related to that and I didn't find much in the release notes.

  $ yum grouplist hidden

rday

-- 


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http://crashcourse.ca

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virtualization on f20

2014-02-05 Thread Mike Wright


Hi all,

Just tried fedora 20 running off a 1G thumb drive and am impressed with 
its speed.  Looks like a lot of things are coming together.  Good job.


I'm most interested in virtualization.  yum didn't show any package 
groups related to that and I didn't find much in the release notes.


Anybody know where that stuff is?

Thanks
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Re: can't find Virtualization Guide

2014-01-16 Thread Ed Greshko

On 01/17/14 07:54, Mike Wright wrote:
> Salve fedoristi,
>
> Anybody know where this is?
>
> Fedora Virtualization Deployment and Administration Guide
>
> Thank you

http://docs.fedoraproject.org/en-US/Fedora_Draft_Documentation/0.1/html/Virtualization_Deployment_and_Administration_Guide/index.html

Is one link returned by a google search

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can't find Virtualization Guide

2014-01-16 Thread Mike Wright


Salve fedoristi,

Anybody know where this is?

Fedora Virtualization Deployment and Administration Guide

Thank you
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Re: Calling FC 16 Virtualization experts!

2012-07-12 Thread Tom Horsley

On Thu, 12 Jul 2012 12:33:48 -0400
Digimer wrote:

> KVM with the virtio disk bus should be fine.

The default disk cache algorithm with virtio is horrible.
I forget which algorithm is which, but changing the
cache setting took me from 10 hours to write a large file
over virtio to 10 minutes to write the same size file.
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Re: Calling FC 16 Virtualization experts!

2012-07-12 Thread Digimer

On 07/12/2012 12:15 PM, Jack Craig wrote:
> Hi FC folks,
> 
> I am setting up a FC 16 workstation and need a VM to load XP (sic) for
> outlook access.
> 
> Looking at virtualization options.
> 
> I find the default of qemu has worked for me before, but the chart of
> options suggests the qemu performance isn't that great.
> 
> conversely, XEN & KVM look like good options.
> 
> Comments as to pro/cons?
> 
> TIA, jackc...

KVM with the virtio disk bus should be fine.

-- 
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Calling FC 16 Virtualization experts!

2012-07-12 Thread Jack Craig

Hi FC folks,

I am setting up a FC 16 workstation and need a VM to load XP (sic) for
outlook access.

Looking at virtualization options.

I find the default of qemu has worked for me before, but the chart of
options suggests the qemu performance isn't that great.

conversely, XEN & KVM look like good options.

Comments as to pro/cons?

TIA, jackc...
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Re: F16: kernel 3.4.2 and virtualization problems

2012-06-20 Thread sguazt

On Wed, Jun 20, 2012 at 1:45 PM, sguazt  wrote:
> Hello,
>
> I've just upgraded the kernel with last yum updates and now I have
> problems in properly running Xen/libvirt.
>
> The first strange thing it happened is a file system corruption of one
> of my VMs.
> The second strange thing is that now I am unable to successfully
> create a new VM.
> If I run:
>
> sudo virt-install -v -l
> http://download.fedoraproject.org/pub/fedora/linux/releases/17/Fedora/x86_64/os
> --ram 1024 --disk path=./images/myvm-f17_64-xen.img,size=10 --name
> myvm-f17_64  --graphics
> vnc,password=qweasdzxc,port=5904,listen=0.0.0.0 --debug
>
> once QEMU starts, it tells that it is unable to find a bootable disk:
> "Boot from Hard Disk failed: not a bootable disk"
>
> If I reboot with the previous kernel (3.3.8) all runs fine.
>
> Any idea?
>

Sorry,

I was wrong in saying that with kernel 3.3.8 all worked fine.
The problem also persists with that kernel. When I tried, I
erroneously rebooted without Xen and thus I was creating VM with KVM

So what could be happened to my Xen environment?

Thank you so much

Best,

-- Marco
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F16: kernel 3.4.2 and virtualization problems

2012-06-20 Thread sguazt

Hello,

I've just upgraded the kernel with last yum updates and now I have
problems in properly running Xen/libvirt.

The first strange thing it happened is a file system corruption of one
of my VMs.
The second strange thing is that now I am unable to successfully
create a new VM.
If I run:

sudo virt-install -v -l
http://download.fedoraproject.org/pub/fedora/linux/releases/17/Fedora/x86_64/os
--ram 1024 --disk path=./images/myvm-f17_64-xen.img,size=10 --name
myvm-f17_64  --graphics
vnc,password=qweasdzxc,port=5904,listen=0.0.0.0 --debug

once QEMU starts, it tells that it is unable to find a bootable disk:
"Boot from Hard Disk failed: not a bootable disk"

If I reboot with the previous kernel (3.3.8) all runs fine.

Any idea?

Thank you very much for the help.

Best,

-- Marco
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Re: Virtualization Documentation

2011-12-12 Thread iarly selbir

You can refer on following links about KVM Virtualization, I've used that
docs as my guide to deploy both kvm in rhel env or fedora(personal purpose)

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Virtualization_Host_Configuration_and_Guest_Installation_Guide/index.html

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Virtualization_Getting_Started_Guide/index.html

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Virtualization_Administration_Guide/index.html


- -
iarlyy selbir

:wq!



On Fri, Dec 9, 2011 at 5:28 PM, Gene Poole  wrote:

> The last official piece of documentation on virtualization was written for
> Fedora 13.  I've found a unofficial document on 'How To Forge' about KVM
> virtualization and Fedora 14. Hasn't there been enough changes and
> additions to KVM virtualization by Fedora 16 that makes that older
> documentation obsolete?
>
> I'm familiar with VMware ESXi and VMware Server, so can I take that
> knowledge and the available documentation and proceed to implement KVM?
>
> Thanks,
> Gene Poole
>
> + It's impossible for everything to be true. +
>
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Virtualization Documentation

2011-12-09 Thread Gene Poole

The last official piece of documentation on virtualization was written for 
Fedora 13.  I've found a unofficial document on 'How To Forge' about KVM 
virtualization and Fedora 14. Hasn't there been enough changes and 
additions to KVM virtualization by Fedora 16 that makes that older 
documentation obsolete?

I'm familiar with VMware ESXi and VMware Server, so can I take that 
knowledge and the available documentation and proceed to implement KVM?

Thanks,
Gene Poole

+ It's impossible for everything to be true. +
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what's the state of qemu-system-ppc virtualization in fedora 16?

2011-11-26 Thread Robert P. J. Day


  what little i know of PPC virtualization suggests that
qemu-system-ppc is still a work in progress, at least on ubuntu which
is what's running on one of my systems.  so i'd like to switch back to
fedora for what will be an extended adventure in virtualization.

  as a specific example, i have a lite5200 (MPC5200) board and i can
easily configure a kernel:

  $ make ARCH=powerpc lite5200b_defconfig

build that kernel, download that using the board's u-boot and boot
that kernel, at least to the point where it falls over from lack of a
root filesystem.  (for now, i just want to verify that the kernel
boots -- i'll worry about the root filesystem later.)

  for fun, i'd like to run that kernel under qemu as well, but i
already know there will be problems.  on the one hand, people suggest
that MCP5200 qemu support is pretty good:

  http://lists.gnu.org/archive/html/qemu-devel/2011-08/msg02757.html

on the other hand, i also had to download a debian package for
openbios-ppc just to attempt to run that kernel using qemu-system-ppc
under ubuntu, and that still didn't work (missing firmware).

  so, if i install fedora 16 and i have my u-boot ready kernel image,
what are the chances of using qemu-system-ppc to simply start that
kernel?  and where's the current state of kvm docs for fedora 16?
thanks.

rday

-- 


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http://crashcourse.ca

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Re: Virtualization

2011-08-04 Thread Christopher A. Williams

On Wed, 2011-08-03 at 14:25 -0400, arag...@dcsnow.com wrote:
> > A few questions on this one: 
> > - How much CPU and RAM resource do you need/intend to provide to
> each 
> > Oracle DB? 
> 
> This macine's only purpose is for the Oracle DBs.  So, I had hoped to
> split up the CPUs and RAM evenly among the clients.
> 
> > - What version of Oracle? 
> 
> 10g
> 
> > - Do you plan to use ASM and Grid Infrastructure? 
> 
> No.
> 
> The real reason for these machines to exist is to act as a kinda live
> backup.  No clients will query these databases.  Our current full
> backups take in the order of 5 hours.  During this time our system
> becomes less responsive than we would like.  So the idea is to just
> run incremental backups and restore them on these VMs.  
> 
> So we would prefer to minimize costs by using a free solution except
> for where we have to.

OK - That makes sense. There are numerous resources available online for
virtualizing Oracle 10g as stand-alone databases. If I were doing this
in this way, I would still go with the free version of ESXi. This gives
you the best overall control for resource assignment between the
databases while using the smallest amount of RAM overhead for the
hypervisor. It also does some things with RAM that will make things more
efficient. And as I mentioned earlier, you have positive control over
the network interfaces such that they can be pooled or dedicated as
needed for performance and security issues.

Check the following URL for some good technical information for
virtualizing Oracle on ESXi, and includes specifics on 10g:
http://www.vmware.com/solutions/partners/alliances/oracle-database-whitepapers.html

What's nice here is that several of the things covered are also
transferable to other hypervisors if you understand how each of them
handles resource management, disk storage, and networking.

Also keep in mind that you will still need to license the box itself for
Oracle. That part doesn't change.

Hope that helps.

Chris

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the universe and human stupidity,
and I'm not sure about the former."

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Re: Virtualization

2011-08-03 Thread aragonx



> A few questions on this one: 
> - How much CPU and RAM
resource do you need/intend to provide to each 
> Oracle
DB? 

This macine's only purpose is for the Oracle
DBs.  So, I had hoped to split up the CPUs and RAM evenly among the
clients.

> - What version of Oracle? 

10g

> - Do you plan to use ASM and Grid Infrastructure? 

No.

The real reason for these machines to exist is to
act as a kinda live backup.  No clients will query these
databases.  Our current full backups take in the order of 5
hours.  During this time our system becomes less responsive than we
would like.  So the idea is to just run incremental backups and
restore them on these VMs.  

So we would prefer to
minimize costs by using a free solution except for where we have to.



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Re: Virtualization

2011-08-03 Thread Christopher A. Williams

On Wed, 2011-08-03 at 07:34 -0400, Jorge Fábregas wrote: 
> On 08/02/2011 11:26 PM, Christopher A. Williams wrote:
> > No - not even close. The reality is that Oracle will not ask you to
> > change the hypervisor. Not in theory or in practice. Among other things,
> > that's illegal. There are already lawsuits underway in related actions
> > by Oracle, which I won't get into here. That would take too long and
> > Groklaw does a batter job anyway.
> 
> I can't speculate (nor I think anyone can) on what they do in _reality_
> with each & everyone of their customers.  Nevertheless, their statements
> regarding this (which I already pointed you to) _are_ written on their
> website and _that's_ s a reality.

...Of which you took several of those statements out of context and
posted here in a misleading way. And that's _also_ a reality. Talk about
speculation. I have the full document, which includes all of the
statements.

Shall I place the quotes on this from Larry Ellison himself here? I have
those too. They actually show support for virtualizing Oracle on VMware
- to the point that he's on the record as calling it "cool".

And since I am in the business along these lines, I do have just a bit
of expertise here.

You must be working for Oracle and helping to spread their FUD. Full
disclosure, or shall I research you in business circles?

> 
> > Certification in this regard is basically a marketing and FUD campaign
> > on the part of Oracle to scare you to buy their hypervisor product,
> > which is clearly inferior. Check out the latest Gartner Magic Quadrant
> > report on OVM if you need to see 3rd party assessments of that (despite
> > that I do not work for VMware either).
> 
> Their intentions for doing this (only certifying their virt platform) is
> not in question here.  The intention is really obvious.  But then,
> again, that doesn't change what they've been explicitly about.

What Oracle is explicitly about is making money - and as much money as
they can get their hand on - just like most companies. That's never
changed.

> > We're now way off base from the original post. Besides, this is a Fedora
> > forum as opposed to a VMware or Oracle one. But You're going to be very
> > hard pressed to prove that, as a practical matter, you're better off
> > virtualizing Oracle databases on OVM as compared to VMware.
> 
> I'll leave it here hoping that if anyone searches the mailing list for
> KVM|Oracle|VMware, they can find out what's the current Oracle policy
> regarding this.  Tha has been my intention; not telling what's better or
> not, what would happen or not; just the facts on their own website so
> anyone can decide prior to any installation.

Yet - you speculated on _exactly_ those things that you purport not to
have or now say you desire not to, and did so in ways that are totally
and completely in error. So, why not present _all_ of the facts before
you jump on this.

I suggest that if you want to know real issues, yes go to Oracle's
website. When you're done, also go to VMware's website where they have
full disclosure and guidelines for virtualizing Oracle for everyone to
see. They address these issues - and much more - explicitly and fully.

Chris

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Re: Virtualization

2011-08-03 Thread Jorge Fábregas

On 08/02/2011 11:26 PM, Christopher A. Williams wrote:
> No - not even close. The reality is that Oracle will not ask you to
> change the hypervisor. Not in theory or in practice. Among other things,
> that's illegal. There are already lawsuits underway in related actions
> by Oracle, which I won't get into here. That would take too long and
> Groklaw does a batter job anyway.

I can't speculate (nor I think anyone can) on what they do in _reality_
with each & everyone of their customers.  Nevertheless, their statements
regarding this (which I already pointed you to) _are_ written on their
website and _that's_ s a reality.

> Certification in this regard is basically a marketing and FUD campaign
> on the part of Oracle to scare you to buy their hypervisor product,
> which is clearly inferior. Check out the latest Gartner Magic Quadrant
> report on OVM if you need to see 3rd party assessments of that (despite
> that I do not work for VMware either).

Their intentions for doing this (only certifying their virt platform) is
not in question here.  The intention is really obvious.  But then,
again, that doesn't change what they've been explicitly about.

> We're now way off base from the original post. Besides, this is a Fedora
> forum as opposed to a VMware or Oracle one. But You're going to be very
> hard pressed to prove that, as a practical matter, you're better off
> virtualizing Oracle databases on OVM as compared to VMware.

I'll leave it here hoping that if anyone searches the mailing list for
KVM|Oracle|VMware, they can find out what's the current Oracle policy
regarding this.  Tha has been my intention; not telling what's better or
not, what would happen or not; just the facts on their own website so
anyone can decide prior to any installation.

--
Jorge

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Re: Virtualization

2011-08-02 Thread Christopher A. Williams

On Tue, 2011-08-02 at 22:03 -0400, Jorge Fábregas wrote: 
> On 08/02/2011 09:40 PM, Christopher A. Williams wrote:
> > This is misleading at best and untrue from a practical matter. The key
> > is support as opposed to certification, and Oracle DOES support their
> > database systems on VMware. There is an official support statement from
> > Oracle to that effect.
> > 
> > The reality is that Oracle only *certifies* to the Operating system
> > layer, and VMware vSphere (ESX/ESXi) is considered hardware in that
> > regard. Ask Oracle if they certify their database on IBM vs. HP vs. Dell
> > hardware and you'll find that they don't certify any of them.
> 
> Not entirely correct. Oracle _does_ use the term "certifies" when
> referring not just to the OS but to the virtualization platform.   Check
> this post and the Metalink notes mentioned there (I assume you have a
> Metalink account):
> 
> http://blogs.oracle.com/UPGRADE/entry/is_oracle_certified_to_run_on
> 
> You'll see in one of the notes:
> 
> "Oracle has not certified any of its products on VMware virtualized
> environments."...
> 
> The reality is that, if you have a support issue, the support
> representative could - in theory - ask you to change your hypervisor in
> order to proceed with your service request otherwise you won't be
> supported.

No - not even close. The reality is that Oracle will not ask you to
change the hypervisor. Not in theory or in practice. Among other things,
that's illegal. There are already lawsuits underway in related actions
by Oracle, which I won't get into here. That would take too long and
Groklaw does a batter job anyway.

Ask Oracle what certification means. And ask them if it's certified on
specific hardware. You'll find that certification means pretty much
nothing from a practical perspective.

Certification in this regard is basically a marketing and FUD campaign
on the part of Oracle to scare you to buy their hypervisor product,
which is clearly inferior. Check out the latest Gartner Magic Quadrant
report on OVM if you need to see 3rd party assessments of that (despite
that I do not work for VMware either).

We're now way off base from the original post. Besides, this is a Fedora
forum as opposed to a VMware or Oracle one. But You're going to be very
hard pressed to prove that, as a practical matter, you're better off
virtualizing Oracle databases on OVM as compared to VMware.

Come to Las Vegas at the end of the month and you'll see this clearly
demonstrated.

> 
> > As an aside, it's also a little misleading to question certification
> > with respect to VMware but not KVM, which is neither certified (for what
> > that's worth) nor explicitly supported in the way that VMware is -
> > particularly when it comes to RAC versions 11.2.0.2 and later.
> 
> I questioned it because it was the one suggested.  I never implied other
> hypervisors were certified.

Not completely true. I specifically suggested Vbox as a recommended
alternative given the choices listed by the OP. I then pointed out that
ESX/ESXi is a better choice than the three offered. But it is true that
I would not recommend OVM either despite the ...ummm "certification"
from Oracle.

Chris

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Re: Virtualization

2011-08-02 Thread Christopher A. Williams

On Tue, 2011-08-02 at 21:54 -0400, Peter A wrote:

> 
> Hrm... Oracle ID 249212.1:
> Oracle has not certified any of its products on VMware virtualized 
> environments. Oracle Support will assist customers running Oracle products 
> on VMware in the following manner: Oracle will only provide 
> support for issues that either are known to occur on the native OS, or 
> can be demonstrated not to be as a result of running on VMware. 

The second paragraph is actually a little more revealing:
"If a problem is a known Oracle issue, Oracle support will recommend the
appropriate solution on the native OS. If that solution does not work in
the VMware virtualized environment, the customer will be referred to
VMware for support. When the customer can demonstrate that the Oracle
solution does not work when running on the native OS, Oracle will resume
support, including logging a bug with Oracle Development for
investigation if required."

In other words, Oracle will support Oracle, but they expect VMware to
support VMware.

And, in practice, the number of issues directly attributed to VMware is
about as close to zero as you can reasonably get. That includes RAC.

> In practice, this happens very rarely and in my experience usually only in 
> RAC 
> where there are latency and driver feature requirements...

...And for which there are known best practices. I have a white paper on
virtualizing RAC published that is part of the VMware Solution
Enablement Toolkit you might find useful. 
> 
> However, the bigger thing is licensing. According to the official rules, you 
> will have to license all processors that could potentially run Oracle. Since 
> VMWare (or anything other than oracle VM) is not recognized, this means that 
> you will have to license every single processor in your datacenter if you run 
> only a single VM. After all, you could vmotion (or shutdown and move) your VM 
> to any of the ESX servers...

Do you work for Oracle? Only someone from there would flag licensing
issues in this way. Licensing Oracle isn't quite that cut and dry. In
reality, you can absolutely contain Oracle licensing requirements to a
single HA cluster - even by the most aggressive of Oracle standards.
There's also a clear argument going on about host group affinity as
being more than sufficient.

Even then, I have many clients seriously considering moving to other
competing database platforms (SQL Server, DB2, etc.) because their
licensing terms are much more favorable and their databases much easier
to virtualize without a lot of tuning. Oracle's licensing maneuver is
going to cost them sales in the end, and that will eventually drive them
to lighten up.

Chris

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and I'm not sure about the former."

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Re: Virtualization

2011-08-02 Thread Jorge Fábregas

On 08/02/2011 09:40 PM, Christopher A. Williams wrote:
> This is misleading at best and untrue from a practical matter. The key
> is support as opposed to certification, and Oracle DOES support their
> database systems on VMware. There is an official support statement from
> Oracle to that effect.
> 
> The reality is that Oracle only *certifies* to the Operating system
> layer, and VMware vSphere (ESX/ESXi) is considered hardware in that
> regard. Ask Oracle if they certify their database on IBM vs. HP vs. Dell
> hardware and you'll find that they don't certify any of them.

Not entirely correct. Oracle _does_ use the term "certifies" when
referring not just to the OS but to the virtualization platform.   Check
this post and the Metalink notes mentioned there (I assume you have a
Metalink account):

http://blogs.oracle.com/UPGRADE/entry/is_oracle_certified_to_run_on

You'll see in one of the notes:

"Oracle has not certified any of its products on VMware virtualized
environments."...

The reality is that, if you have a support issue, the support
representative could - in theory - ask you to change your hypervisor in
order to proceed with your service request otherwise you won't be
supported.

> As an aside, it's also a little misleading to question certification
> with respect to VMware but not KVM, which is neither certified (for what
> that's worth) nor explicitly supported in the way that VMware is -
> particularly when it comes to RAC versions 11.2.0.2 and later.

I questioned it because it was the one suggested.  I never implied other
hypervisors were certified.

My intention is, for the OP to know that, the only virtualization
platform certified/supported by Oracle is merely their "Oracle VM"
platform.  If, in the day to day of business, they (Oracle) don't
enforce their "fine print" that's another issue.  My point is that one
needs to be aware of the "fine print" and the current state of affairs.

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Re: Virtualization

2011-08-02 Thread Peter A

On Tuesday, August 02, 2011 09:40:57 PM Christopher A. Williams wrote:
> On Tue, 2011-08-02 at 17:43 -0400, Jorge Fábregas wrote: 
> > To this day, as far as I know, Oracle doesn't certify their database on
> > any virtualization platform other than theirs.  That said,  I know many
> > people run Oracle over VMware and I also haven't heard any stories of
> > Oracle not wanting to support a customer because they were running a
> > non-certified virtualization platform.  However, I still think the OP
> > needs to be aware of this just in case.
> 
> This is misleading at best and untrue from a practical matter. The key
> is support as opposed to certification, and Oracle DOES support their
> database systems on VMware. There is an official support statement from
> Oracle to that effect.
> 
> The reality is that Oracle only *certifies* to the Operating system
> layer, and VMware vSphere (ESX/ESXi) is considered hardware in that
> regard. Ask Oracle if they certify their database on IBM vs. HP vs. Dell
> hardware and you'll find that they don't certify any of them.

Hrm... Oracle ID 249212.1:
Oracle has not certified any of its products on VMware virtualized 
environments. Oracle Support will assist customers running Oracle products 
on VMware in the following manner: Oracle will only provide 
support for issues that either are known to occur on the native OS, or 
can be demonstrated not to be as a result of running on VMware. 

There is more to the document but this is essentially it. If you have any 
issue that Oracle has not seen before and they have any reason to believe it 
may be related to virtualization, they'll ask you to install it on the native 
OS and show the issue still occurs. 
In practice, this happens very rarely and in my experience usually only in RAC 
where there are latency and driver feature requirements...

However, the bigger thing is licensing. According to the official rules, you 
will have to license all processors that could potentially run Oracle. Since 
VMWare (or anything other than oracle VM) is not recognized, this means that 
you will have to license every single processor in your datacenter if you run 
only a single VM. After all, you could vmotion (or shutdown and move) your VM 
to any of the ESX servers...

Peter.

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Re: Virtualization

2011-08-02 Thread Christopher A. Williams

On Tue, 2011-08-02 at 17:43 -0400, Jorge Fábregas wrote: 
> On 08/02/2011 04:50 PM, Christopher A. Williams wrote:
> > I specialize in virtualizing Oracle Databases (among other things).
> > Given the choices of virtualization platforms you gave, I would tend to
> > go with either VirtualBox or KVM, in that order of preference.
> 
> Hi Christopher,
> 
> To this day, as far as I know, Oracle doesn't certify their database on
> any virtualization platform other than theirs.  That said,  I know many
> people run Oracle over VMware and I also haven't heard any stories of
> Oracle not wanting to support a customer because they were running a
> non-certified virtualization platform.  However, I still think the OP
> needs to be aware of this just in case.

This is misleading at best and untrue from a practical matter. The key
is support as opposed to certification, and Oracle DOES support their
database systems on VMware. There is an official support statement from
Oracle to that effect.

The reality is that Oracle only *certifies* to the Operating system
layer, and VMware vSphere (ESX/ESXi) is considered hardware in that
regard. Ask Oracle if they certify their database on IBM vs. HP vs. Dell
hardware and you'll find that they don't certify any of them.

> 
> > However, if I may, you will be much better off handling these things
> > from a performance point of view using a bare metal hypervisor, and in
> > that case, I would recommend the free version of ESXi. 
> 
> I think KVM is considered a bare metal hypervisor as well.  I haven't
> used it  but I was wondering if you had performed any tests (performance
> wise) on Oracle over KVM vs Oracle over ESXi?

KVM is considered a bare metal hypervisor by mainly the KVM folks. It
actually bolts a hypervisor straight into the Linux kernel. It's clearly
a better situation than a Type 2 hypervisor (and one I happen to like a
lot), but you could question if it really is a full, pure bare metal
class of the likes of ESX/ESXi and even OVM for that matter.

I haven't done any explicit performance testing pitting KVM against
ESX/ESXi yet and will hold off on doing any until vSphere 5.0 hits the
streets as well. That's because there are significant performance
increases in vSphere 5.0 (they have announced an increase from 300,000
IOPS to 1,000,000 IOPS for example). I can tell you that I have
configured and tuned VMs on ESXi 4.1 which have performed as fast as
their physical counterparts, sometimes even a little faster running
Oracle, SQL Server, DB2, and Sybase.

As an aside, it's also a little misleading to question certification
with respect to VMware but not KVM, which is neither certified (for what
that's worth) nor explicitly supported in the way that VMware is -
particularly when it comes to RAC versions 11.2.0.2 and later.

Cheers,

Chris

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Re: Virtualization

2011-08-02 Thread Jorge Fábregas

On 08/02/2011 04:50 PM, Christopher A. Williams wrote:
> I specialize in virtualizing Oracle Databases (among other things).
> Given the choices of virtualization platforms you gave, I would tend to
> go with either VirtualBox or KVM, in that order of preference.

Hi Christopher,

To this day, as far as I know, Oracle doesn't certify their database on
any virtualization platform other than theirs.  That said,  I know many
people run Oracle over VMware and I also haven't heard any stories of
Oracle not wanting to support a customer because they were running a
non-certified virtualization platform.  However, I still think the OP
needs to be aware of this just in case.

> However, if I may, you will be much better off handling these things
> from a performance point of view using a bare metal hypervisor, and in
> that case, I would recommend the free version of ESXi. 

I think KVM is considered a bare metal hypervisor as well.  I haven't
used it  but I was wondering if you had performed any tests (performance
wise) on Oracle over KVM vs Oracle over ESXi?

Regards,
Jorge
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Re: Virtualization

2011-08-02 Thread Tom Horsley

On Tue, 2 Aug 2011 15:49:45 -0400
arag...@dcsnow.com wrote:

> Any
> recommendations before I start down the wrong path?

I use KVM at work on two hosts, one intel, the other
amd. I've had more random flaky problems with VMs hosted
on the amd machine than on the intel machine (though
nothing I've been able to put my finger on and
report as a reproducible bug).
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Re: Virtualization

2011-08-02 Thread Christopher A. Williams

On Tue, 2011-08-02 at 15:49 -0400, arag...@dcsnow.com wrote:
> Hello all,
> 
> I'm looking to setup the following environment:
> 
> 4 dual-core 2.6GhZ AMD Opteron Processors (64bit)
> 32GB RAM
> 2 6TB esata disks (each client needs 3T of space)
> 4 GB networks connections (would be nice if I could dedicate one to
> each client OS)
> 
> Starting with Fedora 15 as my host OS.
> 
> 3 Suse 9.3 clients (running a custom 2.6.28.4 kernel) all running
> pretty big Oracle databases.
> 
> So, the question is:  Which virtual environment will run well for this
> kind of setup?  It looks like my choices are VIrtualbox (seems to be
> the current favorite), KVM or Xen.
> 
> I can install the systems from scratch if required but I also have a
> ghost and dumps of other systems that could be used.
> 
> Any recommendations before I start down the wrong path?

A few questions on this one:
- How much CPU and RAM resource do you need/intend to provide to each
Oracle DB?
- What version of Oracle?
- Do you plan to use ASM and Grid Infrastructure?

I specialize in virtualizing Oracle Databases (among other things).
Given the choices of virtualization platforms you gave, I would tend to
go with either VirtualBox or KVM, in that order of preference.

However, if I may, you will be much better off handling these things
from a performance point of view using a bare metal hypervisor, and in
that case, I would recommend the free version of ESXi. It will give you
superior capability and performance, and allow you to do things that you
would otherwise not be able to.

For example, You could take the 4 Gig-E NICs, combine them into a single
virtual switch, and then connect all of the database VMs to it such that
they would automatically share the bandwidth. You could even create
separate port groups on different VLANs to keep the networking traffic
separate and assign different databases to different VLANs. That's just
barely scratching the surface of things on the networking side alone as
well.

I'm happy to discuss specifics further if you like. I am a Linux guy and
major Fedora fan, and I also am a VCAP-DCA and VCAP-DCD. I do this on my
job every day.

I also will be a panelist at VMworld 2011 later this month on a
discussion about virtualizing Oracle databases (Session BCA1548). If
anyone else is coming, definitely drop me a line!

Cheers,

Chris

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Virtualization

2011-08-02 Thread aragonx



Hello all,

I'm looking to setup the following environment:

4 dual-core 2.6GhZ AMD Opteron Processors (64bit)
32GB RAM
2 6TB esata disks (each client needs 3T of space)
4 GB networks
connections (would be nice if I could dedicate one to each client OS)

Starting with Fedora 15 as my host OS.

3 Suse 9.3
clients (running a custom 2.6.28.4 kernel) all running pretty big Oracle
databases.

So, the question is:  Which virtual environment
will run well for this kind of setup?  It looks like my choices are
VIrtualbox (seems to be the current favorite), KVM or Xen.

I
can install the systems from scratch if required but I also have a ghost
and dumps of other systems that could be used.

Any
recommendations before I start down the wrong path?

---
Will Y.

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Re: Apps Virtualization with OpenSource?

2011-07-03 Thread Manuel Escudero

2011/7/3 Sam Sharpe 

> On 3 July 2011 13:57, Bruno Wolff III  wrote:
> > On Sun, Jul 03, 2011 at 03:25:39 -0500,
> >  Manuel Escudero  wrote:
> >> As maybe I can't run a VM in all the computers that I might have access
> to
> >> and because Wine Can't Emulate some programs correctly, I Know the
> solution
> >> is using the cloud to carry my apps with me, I was wondering if there is
> a
> >> Free Service
> >
> >> (Better if it's opensource) to run my Windows apps from the server
> >> in my Linux Machines or if I can mount a server with free/opensource
> >> technologies that give me that option.
> >
> >> is it possible? What should I use?
> >
> > Have you taken a look at openshift (https://openshift.redhat.com/app/)?
>
> How exactly does that help? Running Windows is not one of the features
> of Red Hat's PaaS offering.
>
> To answer the OP's question, there is unlikely to be a free service
> that allows you to run Windows Apps in the Cloud, because they would
> have to pay Microsoft for the Windows licencing fees.
>
> There are many companies that will rent/sell you a Windows virtual
> machine, to which you could connect via Remote Desktop from Linux
> (tsclient/rdesktop will do it) and you could install your applications
> there - but checking my own employer's prices, it looks like that
> would cost you about $60 per month - mostly because they don't offer
> Windows 7 or XP - only Server 2008.
>
> Of course you could reduce that cost by not running it permanently (as
> they are usually billed hourly for the time the machine is running),
> but it's still going to cost money.
>
> --
> Sam
>


Ok, does someone know how can I mount a server for my propouse
in order to don't pay to a company and manage it myself?

Otherwhise I'll have to see how to pay for the service, I'm really
interested in that.



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Re: Apps Virtualization with OpenSource?

2011-07-03 Thread Sam Sharpe

On 3 July 2011 13:57, Bruno Wolff III  wrote:
> On Sun, Jul 03, 2011 at 03:25:39 -0500,
>  Manuel Escudero  wrote:
>> As maybe I can't run a VM in all the computers that I might have access to
>> and because Wine Can't Emulate some programs correctly, I Know the solution
>> is using the cloud to carry my apps with me, I was wondering if there is a
>> Free Service
>
>> (Better if it's opensource) to run my Windows apps from the server
>> in my Linux Machines or if I can mount a server with free/opensource
>> technologies that give me that option.
>
>> is it possible? What should I use?
>
> Have you taken a look at openshift (https://openshift.redhat.com/app/)?

How exactly does that help? Running Windows is not one of the features
of Red Hat's PaaS offering.

To answer the OP's question, there is unlikely to be a free service
that allows you to run Windows Apps in the Cloud, because they would
have to pay Microsoft for the Windows licencing fees.

There are many companies that will rent/sell you a Windows virtual
machine, to which you could connect via Remote Desktop from Linux
(tsclient/rdesktop will do it) and you could install your applications
there - but checking my own employer's prices, it looks like that
would cost you about $60 per month - mostly because they don't offer
Windows 7 or XP - only Server 2008.

Of course you could reduce that cost by not running it permanently (as
they are usually billed hourly for the time the machine is running),
but it's still going to cost money.

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Re: Apps Virtualization with OpenSource?

2011-07-03 Thread Bruno Wolff III

On Sun, Jul 03, 2011 at 03:25:39 -0500,
  Manuel Escudero  wrote:
> As maybe I can't run a VM in all the computers that I might have access to
> and because Wine Can't Emulate some programs correctly, I Know the solution
> is using the cloud to carry my apps with me, I was wondering if there is a
> Free Service
 
> (Better if it's opensource) to run my Windows apps from the server
> in my Linux Machines or if I can mount a server with free/opensource
> technologies that give me that option.
 
> is it possible? What should I use?

Have you taken a look at openshift (https://openshift.redhat.com/app/)?
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Apps Virtualization with OpenSource?

2011-07-03 Thread Manuel Escudero

Hi, I'm going to give you some quick context:

Last week I went to a "Startup Weekend" Event in Guadalajara, Jalisco,
(My county is Mexico) and I live in Mexico City. Usually I use Desktop
machines, in fact, I ONLY own one computer and it's a Desktop (F15 KDE 64
Bits BTW)

And it has never gave me problems before, I can pacefully work at home, at
work, at school with desktop computers as many things I use are on the cloud
and all the machines I use in my diary life have mostly the same setup
(Software,
Configs and other things, such as Fedore as the primary O.S. and Windows
VM's
inside Vbox).

BUT for this event I had to ask for a borrowed laptop as I don't have one.
The thing is
I usually work in Fedora Linux and in Windows VM inside of Fedora Linux
Because
of Dreamweaver CS5, that is my main web development production app, also I
use
Windows VM's to check's IE compatibility, and some Corel and Ulead Programs.

As a Matter of fact, I CAN'T work in a PC where I only have Windows or where
I only
have Linux, (or with dual-boot) I'm used to use both O.S. at the same time,
complementing
one with the other, Linux as the MAIN O.S and Windows in a VM...

The laptop I got only had F14 ans it wasn't powerful enough to create a VM,
Wine
won't run Dreamweaver CS5 or most of the windows tools I need to work
correctly
and I felt "inproductive" in some way at the event.

MY QUESTION IS:

As maybe I can't run a VM in all the computers that I might have access to
and because Wine Can't Emulate some programs correctly, I Know the solution
is using the cloud to carry my apps with me, I was wondering if there is a
Free Service
like XenApp:

https://www.youtube.com/watch?v=mpdUDUVMNKM

(Better if it's opensource) to run my Windows apps from the server
in my Linux Machines or if I can mount a server with free/opensource
technologies that give me that option.

I don't intend for a enterprise enviroment, something personal
where I can virtualize at much 5 apps for my personal use
in the cloud...

is it possible? What should I use?

Thanks!

-- 
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Re: xen virtualization: xen-4.1 rpm?

2011-03-30 Thread M A Young

On Wed, 30 Mar 2011, Mike Wright wrote:

> On 03/29/2011 02:42 PM, M A Young wrote:
>> On Tue, 29 Mar 2011, Mike Wright wrote:
>> 
>>> Does anybody know when we might get our hands on the new xen-4.1 rpms?
>> 
>> On F15 or rawhide,
>> yum install xen xen-runtime xen-hypervisor
>
> Thanks, Michael.
>
> Added the f15 repo and did a yum install xen... and got this:
>
> Error: Package: xen-libs-4.1.0-1.fc15.x86_64 (updates-testing)
>   Requires: liblzma.so.5()(64bit)
>
> ...so I tried --skip-broken and it did.  It skipped everything ;/

If you want to do it this way follow the xz part of the instructions for 
getting F15 compatible delta isos working at 
http://lists.fedoraproject.org/pipermail/test/2011-February/097009.html

Michael Young
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Re: xen virtualization: xen-4.1 rpm?

2011-03-30 Thread Mike Wright

On 03/29/2011 02:42 PM, M A Young wrote:
> On Tue, 29 Mar 2011, Mike Wright wrote:
>
>> Does anybody know when we might get our hands on the new xen-4.1 rpms?
>
> On F15 or rawhide,
> yum install xen xen-runtime xen-hypervisor

Thanks, Michael.

Added the f15 repo and did a yum install xen... and got this:

Error: Package: xen-libs-4.1.0-1.fc15.x86_64 (updates-testing)
Requires: liblzma.so.5()(64bit)

...so I tried --skip-broken and it did.  It skipped everything ;/

Any tips on how to work around this?
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Re: xen virtualization: xen-4.1 rpm?

2011-03-29 Thread M A Young

On Tue, 29 Mar 2011, Mike Wright wrote:

> Does anybody know when we might get our hands on the new xen-4.1 rpms?

On F15 or rawhide,
yum install xen xen-runtime xen-hypervisor

Michael Young
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xen virtualization: xen-4.1 rpm?

2011-03-29 Thread Mike Wright

Hi all,

I found about the new version here:
http://wiki.xensource.com/xenwiki/HostConfiguration/Networking

If I understand correctly this means we will define our networks on our 
host machines using standard networking tools/scripts and that from that 
point on our virtuals will be able to attach their virtual interfaces to 
our host's bridges and that the new xl tools are the new way forward?

If this is accurate I can't wait.  h h h

Does anybody know when we might get our hands on the new xen-4.1 rpms?

(in 1 month I have only seen 4 or 5 people on fedora's xen list so I 
posted here).

Thank you
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Re: Virtualization for dummies

2010-08-07 Thread Tom Horsley

On Sat, 07 Aug 2010 13:47:10 -0400
Sam Varshavchik wrote:

> Also, can someone clarify for me 
> how the virtual display works -- would the virtual machine run in an 
> ordinary window, or does it take the entire display, with a hotkey to flip 
> between the virtual machine and the host OS.

The display is running as a emulated VGA device you get to via
something like VNC. This is very low performance video, so don't
expect to run 3D games on a windows virtual machine, etc.

Coming (soon maybe) is "spice" which I am looking forward to, but
haven't tried any of the previews yet. This provides a higher
performance video device driver you can install in windows and view
in the special spice viewer app (much more souped up than VNC).

I have hopes that it will be able to run the espn3.com viewer
software :-).

If you are planning anything that uses heavy disk IO in windows,
the recommendations I have seen call for using a dedicated LVM
as the disk drive and running the virtio disk drivers in
windows (which are a bit tricky to install on the boot disk).

I don't use the LVM, instead I go in the opposite direction and
use qcow2 images which may be a little slow but are fairly compact
on the host machine.
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Re: Virtualization for dummies

2010-08-07 Thread Kevin Fenzi

On Sat, 07 Aug 2010 13:47:10 -0400
Sam Varshavchik  wrote:

> I'm planning on taking a plunge into virtualization. I need to retire
> an ancient server, and I'm about to order a new kit to replace it.
> Given that it's new hardware, I expect to get something that supports
> hardware virtualization (it's going to be a real server, and not some 
> consumer-oriented kit from OEMs that bastardize the BIOS into
> disabling hardware virualization), so rather than setting aside a
> separate partition for Windows, I think I want to try to run it in a
> virtual instance.

Sounds reasonable. ;) 

> Hopefully, nobody will tell me that for some reason or another there
> would be some compatibility problem loading the original CD of Win XP
> Home, then updating it to the current SP3+all patches. Also, can
> someone clarify for me how the virtual display works -- would the
> virtual machine run in an ordinary window, or does it take the entire
> display, with a hotkey to flip between the virtual machine and the
> host OS.

It can do either, depending on which virtuilization product you use and
how you have it setup. 

With libvirt you can use a virt-viewer/virt-manager program that lets
you view it in a window, or go full screen. 

> Also, how does networking work. I'm guessing that the virtual machine
> would have an IP address on a separate netblock that the host OS sees
> as a virtual network interface, so the Fedora host will need to have
> IP forwarding enabled, and other machines on the real LAN segment
> will need an appropriate routing table entry.

Yes, you can do a routed setup, or you could do a bridged setup (so the
guest has an IP on the local network and appears just as another
machine). 

http://fedoraproject.org/wiki/Virtualization_Quick_Start

and

http://wiki.libvirt.org/page/Networking

are a good place to start. ;) 

kevin


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Virtualization for dummies

2010-08-07 Thread Sam Varshavchik

I'm planning on taking a plunge into virtualization. I need to retire an 
ancient server, and I'm about to order a new kit to replace it. Given that 
it's new hardware, I expect to get something that supports hardware 
virtualization (it's going to be a real server, and not some 
consumer-oriented kit from OEMs that bastardize the BIOS into disabling 
hardware virualization), so rather than setting aside a separate partition 
for Windows, I think I want to try to run it in a virtual instance.


Hopefully, nobody will tell me that for some reason or another there would 
be some compatibility problem loading the original CD of Win XP Home, then 
updating it to the current SP3+all patches. Also, can someone clarify for me 
how the virtual display works -- would the virtual machine run in an 
ordinary window, or does it take the entire display, with a hotkey to flip 
between the virtual machine and the host OS.


Also, how does networking work. I'm guessing that the virtual machine would 
have an IP address on a separate netblock that the host OS sees as a virtual 
network interface, so the Fedora host will need to have IP forwarding 
enabled, and other machines on the real LAN segment will need an appropriate 
routing table entry.




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Re: virtualization without VMX cpu

2010-07-20 Thread Jerry Feldman

On 07/19/2010 07:10 PM, Bill Davidsen wrote:
> solarflow99 wrote:
>   
>> I have a P-4 2.8Ghz and it doesnt seem to have the VMX instructions
>> for virtualization.  What I notice is KVM uses QEMU for the hypervisor
>> instead?   I can't detach some hardware that I need for the VM to
>> recognize a USB pluged in, etc. Does anyone know if there is any way
>> around that?  perhaps there is something other than KVM that can do
>> this?
>> 
> I assume you mean you got some error when you use the -usbdevice option in 
> qemu? 
>   Without knowing more I can't help a lot, and I'm not sure you want to do 
> the 
> VM that way anyway.
>
> Things you can try:
> - tell us what happens when you use the -usbdevice with qemu, it has worked 
> for 
> me in the past.
> - try VirtualBox (suggested to me, don't use it)
> - try VMware (I have used that)
> - spend a few hundred bucks and get a better CPU
>(not knocking you CPU, but this is the easy way out)
> - install the latest CentOS-5 release which has xen
>
> Just some thoughts, I like new CPU, CentOS/xen and VMware, in that order. Not 
> my 
> dime, tho, so free advice is worth what you paid.
>
>   
A new CPU will not help if the BIOS and chipset do not support
virtualization. My laptop has a 64-bit AMD chip without virtualization,
and VirtualBox works fine. Without hardware virtualization, IMHO,
VirtualBox is probably the better solution. Our company uses VMWare
Workstation. VirtualBox does not support 64-bit guest OS's when hardware
virtualization is not enabled.

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Boston Linux and Unix
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Re: virtualization without VMX cpu

2010-07-19 Thread Bill Davidsen

solarflow99 wrote:
> I have a P-4 2.8Ghz and it doesnt seem to have the VMX instructions
> for virtualization.  What I notice is KVM uses QEMU for the hypervisor
> instead?   I can't detach some hardware that I need for the VM to
> recognize a USB pluged in, etc. Does anyone know if there is any way
> around that?  perhaps there is something other than KVM that can do
> this?

I assume you mean you got some error when you use the -usbdevice option in 
qemu? 
  Without knowing more I can't help a lot, and I'm not sure you want to do the 
VM that way anyway.

Things you can try:
- tell us what happens when you use the -usbdevice with qemu, it has worked for 
me in the past.
- try VirtualBox (suggested to me, don't use it)
- try VMware (I have used that)
- spend a few hundred bucks and get a better CPU
   (not knocking you CPU, but this is the easy way out)
- install the latest CentOS-5 release which has xen

Just some thoughts, I like new CPU, CentOS/xen and VMware, in that order. Not 
my 
dime, tho, so free advice is worth what you paid.

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the machinations of the wicked."  - from Slashdot
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Re: virtualization without VMX cpu

2010-07-17 Thread Jerry Feldman

On 07/15/2010 04:29 PM, solarflow99 wrote:
> I have a P-4 2.8Ghz and it doesnt seem to have the VMX instructions
> for virtualization.  What I notice is KVM uses QEMU for the hypervisor
> instead?   I can't detach some hardware that I need for the VM to
> recognize a USB pluged in, etc. Does anyone know if there is any way
> around that?  perhaps there is something other than KVM that can do
> this?
>   
I think that VirtualBox may be a better choice for you.
(http://www.virtualbox.org/). The non-OpenSource version of VirtualBox
does have better support for USB.
One restriction is that a 64-bit Virtualbox Host OS that does not have
VMX (AMD:SVM) enabled cannot run 64-bit guest OS.

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virtualization without VMX cpu

2010-07-15 Thread solarflow99

I have a P-4 2.8Ghz and it doesnt seem to have the VMX instructions
for virtualization.  What I notice is KVM uses QEMU for the hypervisor
instead?   I can't detach some hardware that I need for the VM to
recognize a USB pluged in, etc. Does anyone know if there is any way
around that?  perhaps there is something other than KVM that can do
this?
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Re: KVM Virtualization - Please Help

2010-05-10 Thread Jim


On 05/10/2010 02:02 PM, Mike Guilmot wrote:
On Mon, May 10, 2010 at 7:54 PM, Jim > wrote:


Could some one please direct me to the Instructions for installing KVM
on FC12 .

I have googled my self crazy, everything I do a Search for it has the
wrong version of
Virtual Manager and the instructions do not apply completely with the
latest update.

I can't get a  Window7 image to install in
/var/lib/libvirt/images, the
path is there but no image.


I'm not sure if I understand your question exactly.
Are you having troubles to install KVM ? Or are you having troubles 
installing Windows 7 in a KVM vm ?
If you are having problems installing, where is it going wrong ? 
Normally it should install fine via yum :-)


--
Kind regards,
Mike Guilmot


I have KVM installed , I think ?
I can run Virtual Manager and it starts to install Windows 7,  but 
windows 7 crashes (BSOD) at the "Start Setup" and doesn't show up in 
/var/lib/libvirt/images


I'm allocating ;

2048 ram for image , from a total of 4gb for the system ram.

80 gb from a / partition of 384 gb .

The instruction for Virtual Manager on the Google Searches doesn't 
compare with what I'm getting from the latest FC12 update.


So I was looking for a up to date Virtual Manager Instructions, I'm just 
not sure that I'am doing the install correct.
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Re: KVM Virtualization - Please Help

2010-05-10 Thread Kevin Fenzi

On Mon, 10 May 2010 13:54:35 -0400
Jim  wrote:

> Could some one please direct me to the Instructions for installing
> KVM on FC12 .
> 
> I have googled my self crazy, everything I do a Search for it has the 
> wrong version of
> Virtual Manager and the instructions do not apply completely with the 
> latest update.
> 
> I can't get a  Window7 image to install in /var/lib/libvirt/images,
> the path is there but no image.

http://fedoraproject.org/wiki/Getting_started_with_virtualization

kevin


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Re: KVM Virtualization - Please Help

2010-05-10 Thread Mike Guilmot

On Mon, May 10, 2010 at 7:54 PM, Jim  wrote:

> Could some one please direct me to the Instructions for installing KVM
> on FC12 .
>
> I have googled my self crazy, everything I do a Search for it has the
> wrong version of
> Virtual Manager and the instructions do not apply completely with the
> latest update.
>
> I can't get a  Window7 image to install in /var/lib/libvirt/images, the
> path is there but no image.
>
>
I'm not sure if I understand your question exactly.
Are you having troubles to install KVM ? Or are you having troubles
installing Windows 7 in a KVM vm ?
If you are having problems installing, where is it going wrong ? Normally it
should install fine via yum :-)

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KVM Virtualization - Please Help

2010-05-10 Thread Jim

Could some one please direct me to the Instructions for installing KVM 
on FC12 .

I have googled my self crazy, everything I do a Search for it has the 
wrong version of
Virtual Manager and the instructions do not apply completely with the 
latest update.

I can't get a  Window7 image to install in /var/lib/libvirt/images, the 
path is there but no image.
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Re: Virtualization

2010-04-19 Thread Marko Vojinovic

On Monday 19 April 2010 15:57:48 Jerry Feldman wrote:
> On 04/08/2010 10:03 AM, Javier Perez wrote:
> > I started to virtualized but found out my CPU did not have vmx (E5200 :(
> > ) It will be awhile until I replace the CPU to something with vmx, and
> > start to practice it,
> > but I am studying this asiduously to implement it.
> 
> Ok. Virtualbox, VMWare, and QEMU (without KVM)  will run fine on a
> non-virtualized CPU.

This depends on how you define "run fine". Virtualbox and VMWare have kernel 
modules (that is, if you can compile the VMWare ones for the latest kernels) 
that will enable decent performance on non-virtualized CPU. QEMU doesn't have 
it, and will typically be extremely slow. 

> Additionally, not only do you need a CPU with the
> virtualization assist but you also need support for it in the BIOS. All
> AMD 64-bit CPU chips and most (but not all) Intel chips have the
> virtualization assistance.

For Intel this is a hit-or-miss thing, there was an earlier thread where I 
ranted about it quite a lot.

Best, :-)
Marko

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Re: Virtualization

2010-04-19 Thread Ralph Blach

You might have to go into you bios and turn on the bit,

Chip

Jerry Feldman wrote:
> On 04/08/2010 10:03 AM, Javier Perez wrote:
>>
>>
>> Thanks Jerry and everyone else who answered!
>>
>> I started to virtualized but found out my CPU did not have vmx (E5200 :( )
>> It will be awhile until I replace the CPU to something with vmx, and
>> start to practice it,
>> but I am studying this asiduously to implement it.
>>
>> I´ll let you know how it went!
>>
>>
> Ok. Virtualbox, VMWare, and QEMU (without KVM)  will run fine on a
> non-virtualized CPU. Additionally, not only do you need a CPU with the
> virtualization assist but you also need support for it in the BIOS. All
> AMD 64-bit CPU chips and most (but not all) Intel chips have the
> virtualization assistance.
>
>

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Re: Virtualization

2010-04-19 Thread Jerry Feldman

On 04/08/2010 10:03 AM, Javier Perez wrote:
>
>
> Thanks Jerry and everyone else who answered!
>  
> I started to virtualized but found out my CPU did not have vmx (E5200 :( )
> It will be awhile until I replace the CPU to something with vmx, and
> start to practice it,
> but I am studying this asiduously to implement it.
>  
> I´ll let you know how it went!
>  
>
Ok. Virtualbox, VMWare, and QEMU (without KVM)  will run fine on a
non-virtualized CPU. Additionally, not only do you need a CPU with the
virtualization assist but you also need support for it in the BIOS. All
AMD 64-bit CPU chips and most (but not all) Intel chips have the
virtualization assistance. 

-- 
Jerry Feldman 
Boston Linux and Unix
PGP key id: 537C5846
PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB  CA3B 4607 4319 537C 5846




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Re: Virtualization

2010-04-08 Thread Javier Perez

Thanks Jerry and everyone else who answered!

I started to virtualized but found out my CPU did not have vmx (E5200 :( )
It will be awhile until I replace the CPU to something with vmx, and start
to practice it,
but I am studying this asiduously to implement it.

I´ll let you know how it went!

Thanks!
-- 
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   toward the day...
 m m   Pepebuho watches
   from his high perch.
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Re: Virtualization

2010-04-04 Thread Bill Davidsen



Petrus de Calguarium wrote:
> Javier Perez wrote:
> 
>> do I have to reformat my HD, reinstall FC12, and then
>> install win2k, or can I just install yum install the
>> virtual parts for kvm and have it start as a guest
>> the already isntalled win2k ?
>>
> 
> In my experience, this does not work (I have tried to use a 
> windows version installed on another partition -- to no 
> avail). Maybe you can get it to work?
> 
This is how I got it to work. I suspect that it's dangerous at boot time, use 
at 
your own risk.

- create a qcow of the whole drive
   qemu-img -b /dev/sda -f qcow2 -b /dev/sda dcopy.img
- start the image
   qemu-kvm -m 1000 -hda dcopy.img
- boot Windows

After testing that, enable whatever network, sound, etc, you wish

If you are *really* brave just put the whole disk in a VM and don't boot 
another 
copy of Linux

   qemu-kvm -m 1000 -hda /dev/sda

That "worked for me" in FC10 and XP.

-- 
Bill Davidsen 
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

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Re: Virtualization

2010-04-03 Thread Patrick O'Callaghan

On Sat, 2010-04-03 at 22:05 -0400, R. G. Newbury wrote:
> Kudos are due!

Sorry, I just can't let this go by: kudos *is* due (look it up).

poc

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Re: Virtualization

2010-04-03 Thread R. G. Newbury

On 04/03/2010 12:52 PM, users-requ...@lists.fedoraproject.org wrote:
> On Fri, Apr 2, 2010 at 7:49 PM, R. G. Newbury  wrote:
>> >  ?From what I have read, you cannot port an existing win instance into a
>> >  virtual.
> Not entirely true, for a while I had my original XP partition booting
> in VirtualBox using a raw partition VMDK[1]. I used separate hardware
> profiles so I could boot XP natively or in virtual without issue.

well I guess I could quibble that I used the words 'port ...into a 
virtual', but that IS really cool: fooling VBox into believing an actual 
harddrive partition is a VMDK image! Kudos are due!.

Is the magic posted anywhere? 'Cause there are probably lots of people 
who could benefit or who would  be interested.
Geoff


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