[CentOS] virt-manager

[Jerry Geis]

Hi all,

I have centos 7 host, and a centos 5 guest. (both x86_64).
If I reboot the host and run C5 guest the first time it boots and all is
good.
If I run other guests - or some time later - I boot C5 it does not boot.
I get all the way to the "kernel alive" and direct mapping tables on screen
- but NEVER does show me a login - never gets bast that initial kernel
screen.

Anyone know what I might need to change in configs to get it to continue to
boot ?
Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager and windows quest

[Jyrki Tikka]

On Thu, 2021-08-05 at 08:53 -0400, Jerry Geis wrote:
> I am trying to get a windows guest on CentOS 7.9 to have more than
> 800x600
> display.
> 
> I started the Windows client, I downloaded Virtio 0.1.196.iso, went
> to the
> Device Manager, Display, right clicked - updated the driver -
> installed the
> qxldod driver,
> Rebooted.
> 
> The Device Manager shows RedHat QXL Controller but I still only get
> 800x600
> ghosted on Display Settings.
> 
> Properties - shows "Windows has stopped this device as it reported a
> problem (Code 43)".
> 
> What do I do with that ?  This is the same error I had with I first
> tried
> VirtIO 0.1.185.iso

After reading your message I noticed that my Windows guests were using
the Cirrus display. Don't know why - maybe that was the only one that
worked when I installed the first one. I've had no need for larger
displays on the virt-manager console since I use the Windows guests
through RDP.

Anyway, I changed the display to QXL, rebooted, installed the qxldod
driver, rebooted and all the usual display resolutions are now
available. The only difference is that I used an older version of the
virtio DVD - 0.1.171

<(*) Jyrki

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager and windows quest

[Jerry Geis]

I am trying to get a windows guest on CentOS 7.9 to have more than 800x600
display.

I started the Windows client, I downloaded Virtio 0.1.196.iso, went to the
Device Manager, Display, right clicked - updated the driver - installed the
qxldod driver,
Rebooted.

The Device Manager shows RedHat QXL Controller but I still only get 800x600
ghosted on Display Settings.

Properties - shows "Windows has stopped this device as it reported a
problem (Code 43)".

What do I do with that ?  This is the same error I had with I first tried
VirtIO 0.1.185.iso

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager windows guest on CentOS 7

[Jerry Geis]

So come to find its not in the QXL directory its the QXLdod directory.

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager windows guest on CentOS 7

[Jyrki Tikka]

On 2020-07-27 16:45, Jerry Geis wrote:

My windows client is using "generic display adapter" and not QXL.
So I mount the VirtIO iso, open windows Manager, right click on Generic
display display driver and select Update Driver, Browse to my iso, 
click

qxl and there are only three listed.
2k8R2
w7
xp

how do I get a VIrtio display driver for windows 10 ?
Thanks,

jerry


There's a Fedora repo for the VirtIO Drivers and the contents are 
actually

the same as in the RHEL repo.

Everything is explained in this document:

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

The contents of the repo are here:

https://fedorapeople.org/groups/virt/virtio-win/repo/stable/

Once installed, the virtio-win package makes sure that the latest driver 
ISO

is always on your disk.

--
<(*) Jyrki
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager windows guest on CentOS 7

[Jerry Geis]

My windows client is using "generic display adapter" and not QXL.
So I mount the VirtIO iso, open windows Manager, right click on Generic
display display driver and select Update Driver, Browse to my iso, click
qxl and there are only three listed.
2k8R2
w7
xp

There is Windows 10.  I am using that latest stable 1.1.85 iso.

how do I get a VIrtio display driver for windows 10 ?
Thanks,

jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager guest display resize not keep

[Jerry Geis]

I  went in and created a /etc/X11/xorg.conf.d file and put in my resolution
I desired. That seems to take care of it.
Not sure why it didnt keep the setting. but ok.

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager guest display resize not keep

[Jerry Geis]

Hi All,

I have CentOS 7 has host and CentOS 8 as guest. I ran the command:
virsh edit CentOS8 and changed the vgamem to 65536.
I Now get higher resolutions in the guest - I select the 4K resolution, all
works. Then when I reboot I am back to 1024x768.

Any thoughts on getting the C8 guest to keep its screen resolution ?

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager guest and sound

[Fred Smith]

On Wed, Jun 10, 2020 at 03:19:00PM -0400, Lamar Owen wrote:
> On 6/10/20 10:57 AM, Jerry Geis wrote:
> >I am running C7 host and pulse audio. I have a Win 10 guest with ICH9
> >audio. It works - but I hear artifacts. Anything to do to help audio be
> >flawless under guest VM ?
> 
> 
> I've experienced this as well, and haven't really dug into it, since
> my main pro audio production tools (Harrison Mixbus and Mixbus32C)
> are Linux-native.  I do have Celemony Melodyne on Windows, but I
> haven't used it heavily enough in virtualization to notice.  I may
> take a look at it soon, if I need Melodyne badly enough in the near
> future, but since upgrading to CentOS 8 this week I have plenty of
> other things to keep me busy.

Just a personal note here, not at all difinitive:

I used to have a Windows 10 VM in Virtualbox (on Centos-7) and the
Windows sound sucked. Garbled, distorted, and lots of added noise. Does
that seem to be anything like the described "artifacts" ??

I'd guess it's some general issue with Win10 sound, and that MS
doesn't "love Linux" enough to actually make it workd in a VM.
They probably want you to run Linux in a VM on windows, not the
other way around.

-- 
 Fred Smith -- fre...@fcshome.stoneham.ma.us -
  "And he will be called Wonderful Counselor, Mighty God, Everlasting Father,
  Prince of Peace. Of the increase of his government there will be no end. He 
 will reign on David's throne and over his kingdom, establishing and upholding
  it with justice and righteousness from that time on and forever."
--- Isaiah 9:7 (niv) --
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager guest and sound

[Lamar Owen]

On 6/10/20 10:57 AM, Jerry Geis wrote:

I am running C7 host and pulse audio. I have a Win 10 guest with ICH9
audio. It works - but I hear artifacts. Anything to do to help audio be
flawless under guest VM ?



I've experienced this as well, and haven't really dug into it, since my 
main pro audio production tools (Harrison Mixbus and Mixbus32C) are 
Linux-native.  I do have Celemony Melodyne on Windows, but I haven't 
used it heavily enough in virtualization to notice.  I may take a look 
at it soon, if I need Melodyne badly enough in the near future, but 
since upgrading to CentOS 8 this week I have plenty of other things to 
keep me busy.



___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager guest and sound

[Jerry Geis]

I am running C7 host and pulse audio. I have a Win 10 guest with ICH9
audio. It works - but I hear artifacts. Anything to do to help audio be
flawless under guest VM ?
Currently I was just on youtube and playing a song. nothing special.

Plenty of resources on the host. The guest has 8G ram and 8 CPU.

Thanks

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Virt-manager question

[Jerry Geis]

Sorry - I see what I was doing incorrectly.  Thanks for the tip- I got it
working.

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Virt-manager question

[Jerry Geis]

>
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-managing_guests_with_the_virtual_machine_manager_virt_manager-the_virtual_hardware_details_window

Thanks that first picture with the light bulb highlighted - I dont have
that.


I have:
File Edit View help   across top
Then below in pictures:
Screen | Screen with Open | Play icon | pause icon

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Virt-manager question

[Gianluca Cecchi]

On Mon, Mar 2, 2020 at 3:43 PM Jerry Geis  wrote:

> Hi All - I am using virt-manager on CentOS 7.
>
> My definition had a CDROM, my first install did not have the network active
> so it failed.
> I have activated the network. now when I boot - I not longer see the
> CDROM start to install.
>
> How do I get that back ? My OS is still not installed.
>
> Thanks,
>
> Jerry
>
>
I think it would be useful for you to read this chapter of Virtualization
Deployment and Administration Guide for RH EL 7:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-managing_guests_with_the_virtual_machine_manager_virt_manager-the_virtual_hardware_details_window


You find there how to attach cd and set it in thre priority chain of boot
device and you can enable asking for boot device when you press ESC key

HIH,
Gianluca
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] Virt-manager question

[Jerry Geis]

Hi All - I am using virt-manager on CentOS 7.

My definition had a CDROM, my first install did not have the network active
so it failed.
I have activated the network. now when I boot - I not longer see the
CDROM start to install.

How do I get that back ? My OS is still not installed.

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager change to bridged networking on CentOS 7.4

[Gordon Messmer]

On 01/22/2018 05:57 AM, Jerry Geis wrote:

I have virt-manager running just fine currently using NAT.

I want to "change" it to bridged network. The GUI is not letting me change
anything on the network section.


First, create the bridged network device, if you don't have one (where 
"eth0" is your network interface name):

    virsh iface-bridge eth0 br0 --no-stp

You may need to restart libvirtd; I don't recall.

Power down your VM, and then you should be able to change its network 
configuration.

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager change to bridged networking on CentOS 7.4

[anax]

On 01/22/2018 02:57 PM, Jerry Geis wrote:

Hi All,

I have virt-manager running just fine currently using NAT.

I want to "change" it to bridged network. The GUI is not letting me change
anything on the network section.

How do I change it to be bridged ?

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos




Are you sure, that the virtual-machine is powered off while you are 
trying to change the network interface?


suomi
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager change to bridged networking on CentOS 7.4

[Jerry Geis]

Hi All,

I have virt-manager running just fine currently using NAT.

I want to "change" it to bridged network. The GUI is not letting me change
anything on the network section.

How do I change it to be bridged ?

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Virt-Manager and full-screen display

[Gordon Messmer]

On 05/13/2017 02:52 AM, Nicolas Kovacs wrote:

But when I do the same thing with CentOS, I don't have a real
full-screen display. There's still two grey bars left on the upper and
lower end of the screen.


From the virt-manager main window:

Edit -> Preferences -> Console -> Resize guest with window

Or, from a guest VM console view:

View -> Scale Display -> Auto resize VM with window

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] Virt-Manager and full-screen display

[Nicolas Kovacs]

Hi,

I have CentOS 7 with Qemu/KVM and Libvirt running on a headless HP
Proliant Server. Virtual hosts are managed via Virt-Manager installed on
a CentOS 7 + KDE client via SSH.

Things are running quite nicely for now, I only have a few small minor
details to adjust.

On my main workstation running Slackware64 14.1, I also have Qemu/KVM
and Virt-Manager installed. When I launch a virtual host and switch to
full-screen display, the host is a "real" full screen.

But when I do the same thing with CentOS, I don't have a real
full-screen display. There's still two grey bars left on the upper and
lower end of the screen.

Any idea how I can get rid of these and have a 100% full-screen display
for a KVM host?

Cheers,

Niki
-- 
Microlinux - Solutions informatiques durables
7, place de l'église - 30730 Montpezat
Web  : http://www.microlinux.fr
Mail : i...@microlinux.fr
Tél. : 04 66 63 10 32
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager problem

[Alessandro Baggi]

Hi list,
this morning I've update my centos to 1611.
Running virt-manager, and trying to open virt-viewer by clicking on 
"Open", I get this error:


Errore nell'avvio dell'installazione: 'nome-mv'

This bug is reported on rh bugzilla (for Fedora 24) and closed 
2016-07-02 11:24:51 EDT

This problem is locale related.
To solve this problem (for other user) I've removed this file:

/usr/share/locale/it/LC_MESSAGES/virt-manager.mo.

and restarting virt-manager all works fine.

Hope that helps for other user with same problem.

Best regards.

Alessandro.
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager virtual USB disk unavailable option

[Roberto Cantalapiedra]

Hi,

I have installed virt-manager 1.3.2 and I want to create a virtual USB disk
(not USB  host passthrough) but unfortunately I don't see that option when
I try to add a new storage hardware. I have another PC with virt-manager
0.9.5 and Linux Mint and I have that option and it is working perfectly.
My CentOS version is: 7.2.1511

Thanks in advance

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[Akemi Yagi]

On Fri, Oct 23, 2015 at 10:05 AM, John R Pierce  wrote:
> On 10/23/2015 3:40 AM, Ashish Yadav wrote:
>>
>> Go to virtual hardware details of your VM ( by clicking on the open button
>> after selecting your VM), in that go to display sections and select spice
>> from vnc.
>
> you mean the open button, that if I push, causes virt-manager to exit ?

There is a nice wiki article about using spice:

https://wiki.centos.org/HowTos/Spice-libvirt

Akemi
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[John R Pierce]

On 10/23/2015 4:34 PM, Gordon Messmer wrote:
You might try using a Fedora or CentOS VM instead of XMing. 


what I've been doing instead is forcing myself to figure out virsh :)



--
john r pierce, recycling bits in santa cruz

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[Gordon Messmer]

You might try using a Fedora or CentOS VM instead of XMing.
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[John R Pierce]

On 10/23/2015 3:40 AM, Ashish Yadav wrote:

Go to virtual hardware details of your VM ( by clicking on the open button
after selecting your VM), in that go to display sections and select spice
from vnc.



you mean the open button, that if I push, causes virt-manager to exit ?



--
john r pierce, recycling bits in santa cruz

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[Ashish Yadav]

Hi,


On Fri, Oct 23, 2015 at 5:11 AM, John R Pierce  wrote:

> On 10/22/2015 4:15 PM, Nux! wrote:
>
>> Try giving the VM a Spice display, instead of VNC, see if that helps.
>>
>
> no idea how to do this, I'm a total newb with KVM.
>
>
Go to virtual hardware details of your VM ( by clicking on the open button
after selecting your VM), in that go to display sections and select spice
from vnc.

--Regards
Ashishkumar S. Yadav
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[John R Pierce]

On 10/22/2015 4:15 PM, Nux! wrote:

Try giving the VM a Spice display, instead of VNC, see if that helps.


no idea how to do this, I'm a total newb with KVM.


all I actually want to do is attach a USB device to my existing and 
running KVM, but the instructions for doing this in virtsh are confusing 
(anything that requires editing XML files tends to give me a 
headache).   specifically, I want the VM 'kfat' to 'own'


Bus 005 Device 004: ID 08bb:2704 Texas Instruments Audio Codec
...

OK, I figured it out, I had to create a .xml file like...









and pass that to virsh attach-device vmname my.xml



--
john r pierce, recycling bits in santa cruz

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager

[Nux!]

Try giving the VM a Spice display, instead of VNC, see if that helps.

Also, on Windows try Mobaxterm SSH client, it comes with X server built-in, 
perhaps it behaves less crappy.

HTH
Lucian

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

- Original Message -
> From: "John R Pierce" 
> To: "CentOS mailing list" 
> Sent: Friday, 23 October, 2015 00:11:15
> Subject: [CentOS] virt-manager

> so... I've been tinkering with KVM again.  my desktop is windows,
> the linux server is remote, so I have a ssh X tunnel running, and XMing
> running locally, and launch virt-manager.   opens fine, shows the VM I
> created some time ago.   I select that VM (which is running centos 6),
> and 'open', a window opens for a few seconds, then blam, virt-manager
> exits before I can click on the 'details' lightbulb.
> 
> if I run virt-manager --debug, I get the following output after clicking
> on 'open'...
> 
> 2015-10-22 16:08:36,377 (engine:471): window counter incremented to 2
> 2015-10-22 16:08:36,379 (console:1150): Starting connect process for
> proto=vnc trans=None connhost=localhost connuser=None connport=None
> gaddr=127.0.0.1 gport=5900 gsocket=None
> 2015-10-22 16:08:36,381 (console:378): VNC connecting to localhost:5900
> 2015-10-22 16:08:37,009 (console:1061): Viewer connected
> [xcb] Extra reply data still left in queue
> [xcb] This is most likely caused by a broken X extension library
> [xcb] Aborting, sorry about that.
> python: xcb_io.c:576: _XReply: Assertion
> `!xcb_xlib_extra_reply_data_left' failed.
> Aborted (core dumped)
> 
> 
> 
> 
> 
> 
> --
> john r pierce, recycling bits in santa cruz
> 
> ___
> CentOS mailing list
> CentOS@centos.org
> https://lists.centos.org/mailman/listinfo/centos
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager

[John R Pierce]

so... I've been tinkering with KVM again.  my desktop is windows, 
the linux server is remote, so I have a ssh X tunnel running, and XMing 
running locally, and launch virt-manager.   opens fine, shows the VM I 
created some time ago.   I select that VM (which is running centos 6), 
and 'open', a window opens for a few seconds, then blam, virt-manager 
exits before I can click on the 'details' lightbulb.


if I run virt-manager --debug, I get the following output after clicking 
on 'open'...


2015-10-22 16:08:36,377 (engine:471): window counter incremented to 2
2015-10-22 16:08:36,379 (console:1150): Starting connect process for 
proto=vnc trans=None connhost=localhost connuser=None connport=None 
gaddr=127.0.0.1 gport=5900 gsocket=None

2015-10-22 16:08:36,381 (console:378): VNC connecting to localhost:5900
2015-10-22 16:08:37,009 (console:1061): Viewer connected
[xcb] Extra reply data still left in queue
[xcb] This is most likely caused by a broken X extension library
[xcb] Aborting, sorry about that.
python: xcb_io.c:576: _XReply: Assertion 
`!xcb_xlib_extra_reply_data_left' failed.

Aborted (core dumped)






--
john r pierce, recycling bits in santa cruz

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager with dhcpd running on same machine

[Ron Yorston]

Jerry Geis wrote:
>If I have dhcpd running on my machine,
>and I wish to run virt-manager on the same machine
>How do I do that - its telling me an error for starting the network
>and the error is that DHCPD is already running - port in use.

It seems there's a problem with dnsmasq, which is used by virt-manager:

   https://bugs.centos.org/view.php?id=7884
   https://bugzilla.redhat.com/show_bug.cgi?id=1154953

The workaround mentioned in the bug reports is to downgrade dnsmasq
to the version from CentOS 6.5.

Ron
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager with dhcpd running on same machine

[Ashish Yadav]

Hi,

On Fri, Aug 28, 2015 at 2:13 AM, Jerry Geis  wrote:

> If I have dhcpd running on my machine,
> and I wish to run virt-manager on the same machine
> How do I do that - its telling me an error for starting the network
> and the error is that DHCPD is already running - port in use.
>
>
Above problem is due to dnsmasq services which is used by virt-manager.

For virt-manager's networking details can be found at below link,


Please refer below link to configure dnsmasq it.


--Regards
Ashishkumar S. Yadav
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager with dhcpd running on same machine

[Gordon Messmer]

On 08/27/2015 01:43 PM, Jerry Geis wrote:

If I have dhcpd running on my machine,
and I wish to run virt-manager on the same machine
How do I do that - its telling me an error for starting the network
and the error is that DHCPD is already running - port in use.


I'm mostly sure that if you want to run dhcpd, you just need to turn off 
the "default" network and use bridged networking instead.


https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html
(Hasn't really changed)

Under virt-manager, connect to the local host, then right-click on the 
local host and open "Details."  Switch to the Virtual Networks tab, and 
uncheck the Autostart: On Boot option.


Guests will get dhcp from the bridged network, and will be on the same 
broadcast domain as the KVM host.

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager with dhcpd running on same machine

[Jerry Geis]

If I have dhcpd running on my machine,
and I wish to run virt-manager on the same machine
How do I do that - its telling me an error for starting the network
and the error is that DHCPD is already running - port in use.

Thanks,

Jerry
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager packagekit dependency introduce?

[Akemi Yagi]

On Fri, Oct 12, 2012 at 2:20 PM, James B. Byrne  wrote:
> I recently have begun to see this error when starting virt-manager:
>
> Gtk-Message: Failed to load module "pk-gtk-module":
> libpk-gtk-module.so: cannot open shared object file: No such file or
> directory
>
> yum whatprovides */libpk-gtk-module.so
> .  .  .
> PackageKit-gtk-module-0.5.8-20.el6.i686 : Install fonts automatically
> using   : PackageKit
> Repo: base
> Matched from:
> Filename: /usr/lib/gtk-2.0/modules/libpk-gtk-module.so
>
> Does anyone know when this dependency was introduced and why was it
> not satisfied by whatever update introduced it?

Looks like reported upstream:

https://bugzilla.redhat.com/show_bug.cgi?id=668137

but closed as NOTABUG.

Akemi
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager packagekit dependency introduce?

[James B. Byrne]

I recently have begun to see this error when starting virt-manager:

Gtk-Message: Failed to load module "pk-gtk-module":
libpk-gtk-module.so: cannot open shared object file: No such file or
directory

yum whatprovides */libpk-gtk-module.so
.  .  .
PackageKit-gtk-module-0.5.8-20.el6.i686 : Install fonts automatically
using   : PackageKit
Repo: base
Matched from:
Filename: /usr/lib/gtk-2.0/modules/libpk-gtk-module.so

Does anyone know when this dependency was introduced and why was it
not satisfied by whatever update introduced it?


-- 
***  E-Mail is NOT a SECURE channel  ***
James B. Byrnemailto:byrn...@harte-lyne.ca
Harte & Lyne Limited  http://www.harte-lyne.ca
9 Brockley Drive  vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada  L8E 3C3

___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Virt-manager

[Jason Pyeron]

> -Original Message-
> From: Barry L. Kline 
> Sent: Tuesday, May 01, 2012 15:38
> 
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> For some reason my response to the mailing list was lost in the ether.
> 
> make your command read:
> 
> ssh -X root@x.y.a.z  virt-manager &
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.4.5 (GNU/Linux)
> 
> iD8DBQFPoDuVCFu3bIiwtTARAhqJAJwLmHokt/aZ4coYjX+zHOfpypZRYgCcD4wl
> u1uRZL7mpapAdeZ64iVWkq8=
> =s/0B
> -END PGP SIGNATURE-
> 

I should have noted that my ~/ssh/config already does that. It suspends waiting
for stdin.

Ex: cat &

-Jason

--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-   -
- Jason Pyeron  PD Inc. http://www.pdinc.us -
- Principal Consultant  10 West 24th Street #100-
- +1 (443) 269-1555 x333Baltimore, Maryland 21218   -
-   -
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
This message is copyright PD Inc, subject to license 20080407P00.

 

___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

[CentOS] Virt-manager requires stdin to run?

[Jason Pyeron]

Anyone have any ideas on this?


$ ssh root@x.y.z.a virt-manager &

$ Warning: untrusted X11 forwarding setup failed: xauth key data not generated
Warning: No xauth data; using fake authentication data for X11 forwarding.

[2]+  Stopped ssh root@x.y.z.a virt-manager

$ bg
[2]+ ssh root@x.y.z.a virt-manager &

$

[2]+  Stopped ssh root@x.y.z.a virt-manager

--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-   -
- Jason Pyeron  PD Inc. http://www.pdinc.us -
- Principal Consultant  10 West 24th Street #100-
- +1 (443) 269-1555 x333Baltimore, Maryland 21218   -
-   -
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
This message is copyright PD Inc, subject to license 20080407P00.


___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Bernhard Gschaider]

> On Mon, 24 Aug 2009 20:43:57 +0300
> "PK" == Pasi Kärkkäinen  wrote:

PK> On Mon, Aug 24, 2009 at 06:04:06PM +0200, Bernhard Gschaider
PK> wrote:
>> > On Thu, 20 Aug 2009 01:47:07 +0200
>> > "BG" == Bernhard Gschaider  wrote:
>> 
BG> Thanks to everyone who took the time to answer in this thread.
>>
BG> I'm just writing this message to give this thread some closure
BG> and am not expecting any answers
>> I found the cause of my problem. I'll answer to my own posting,
>> because none of the follow-ups lead to the solution, the reason
>> being that I withheld some vital information for the diagnosis:
>> 
>> The filesystem which the disk-image for the virtual machine
>> resides on is XFS!
>> 
>> Googling around I found indications that there are indications
>> that XEN and XFS are not the best of friends, but nobody hinted
>> at something as drastic as completely freezing the host.
>> 
>> Anyway. When I create the image on an ext3-partition and point
>> the configuration to it (no other changes) the installation
>> works without problems.
>> 

PK> Are you running 32bit or 64bit Xen host/dom0?

PK> XFS is known to have problems on 32bit kernels, while it
PK> should work on 64bit kernels. (this is even without Xen).

Everything is 64 bit. So that can't be the explanation.

PK> -- Pasi

>> Bernhard
>> 
>> PS: There were speculations in the replies, that this was my
>> first Xen-experience. I want to stress that I have already a
>> running Xen-machine, that's why I was surprised that it didn't
>> work this time (but I set that one up a year ago, so
>> technically I am starting anew with Xen and the speculations
>> are right)
>> 
>> > On Wed, 19 Aug 2009 10:29:33 -0700 (PDT)
>> > "IM" == Ian Murray  wrote:
>> 
>> >>> > This (and other replies) lead me to two possible
>> culprits: > >>> - either the graphical console over X11 is not
>> a good idea >>> (but I > can't imagine that, it shouldn't shoot
>> the kernel) > >>> - I always installed as a paravirtualized
>> machine, Could it be >>> that > the install-kernel on the
>> 5.3-media is not aware of >>> this and somehow > manages to
>> shot the host (because I noticed >>> that most recipies on >
>> the > net, including >>> http://wiki.centos.org/HowTos/Xen/ >
>> InstallingCentOSDomU > >>> never talk about paravirtualized (so
>> I assume they use a fully >>> > virtualized guest)
>> >>> >
>> >>> > I will try these later today (when people left the office
>> >>> and no one > will complain about server downtimes)
>> >>> >
>> >>> > Bernhard
>> >>> >
>> >>> > BTW: Just one fundamental question: as the upstream OS
>> >>> vendor is > switching his virtualization to KVM anyway, is
>> it >>> a good idea to > forget Xen and use KVM (in other words:
>> is it >>> stable enough for > production)?
>> 
BG> I tried removing both suspects by
>>
BG> - following the Wiki-Howto to the letter (especially using the
BG> Xen-install-kernels) - instead of going over the network I
BG> worked directly at the machine (although I totally agree that
BG> a VNC-session shouldn't be ble to shoot the machine)
>>
BG> but the problem is still there. When I start the configured
BG> machine that points to an install-kernel with
>>
BG> xm create newGuest -c
>>
BG> I see the kernel boot up until it comes to the message
>>
BG> Write protecting the kernel read-only data
>>
BG> where it hangs for some seconds, then the screen goes blank
BG> and the machine reboots.
>>
BG> I'm starting to suspect that it is somehow hardware-related
BG> (it is a Fujitsu-Siemens Synergy server with a
BG> RAID-controller) and I will investigate in that direction
>> 
>> 
>> --
>> 
---
>> DI Bernhard F.W. Gschaider
>> 
---
>> EMail: bernhard.gschai...@ice-sf.at WWW : www.ice-sf.at Jabber
>> : bgsch...@jabber.org Tel: +43(3842)98282-42 Fax:
>> +43(3842)98282-02
>> 
---



>> ___ CentOS mailing
>> list CentOS@centos.org
>> http://lists.centos.org/mailman/listinfo/centos

PK> ___ CentOS mailing
PK> list CentOS@centos.org
PK> http://lists.centos.org/mailman/listinfo/centos


-- 
---
DI Bernhard F.W. Gschaider
---
EMail:  bernhard.gschai...@ice-sf.at
WWW  : www.ice-sf.at
Jabber : bgs

Re: [CentOS] virt-manager crashes Host during installation of guest

[Pasi Kärkkäinen]

On Mon, Aug 24, 2009 at 06:04:06PM +0200, Bernhard Gschaider wrote:
> 
> > On Thu, 20 Aug 2009 01:47:07 +0200
> > "BG" == Bernhard Gschaider  wrote:
> 
> BG> Thanks to everyone who took the time to answer in this thread.
> 
> BG> I'm just writing this message to give this thread some closure
> BG> and am not expecting any answers
> 
> I found the cause of my problem. I'll answer to my own posting,
> because none of the follow-ups lead to the solution, the reason being
> that I withheld some vital information for the diagnosis:
> 
> The filesystem which the disk-image for the virtual machine resides on
> is XFS!
> 
> Googling around I found indications that there are indications that
> XEN and XFS are not the best of friends, but nobody hinted at
> something as drastic as completely freezing the host.
> 
> Anyway. When I create the image on an ext3-partition and point the
> configuration to it (no other changes) the installation works without
> problems. 
> 

Are you running 32bit or 64bit Xen host/dom0? 

XFS is known to have problems on 32bit kernels, while it should work on
64bit kernels. (this is even without Xen).

-- Pasi

> Bernhard
> 
> PS: There were speculations in the replies, that this was my first
> Xen-experience. I want to stress that I have already a running
> Xen-machine, that's why I was surprised that it didn't work this time
> (but I set that one up a year ago, so technically I am starting anew
> with Xen and the speculations are right)
> 
> > On Wed, 19 Aug 2009 10:29:33 -0700 (PDT)
> > "IM" == Ian Murray  wrote:
> 
> >>> > This (and other replies) lead me to two possible culprits: >
> >>> - either the graphical console over X11 is not a good idea
> >>> (but I > can't imagine that, it shouldn't shoot the kernel) >
> >>> - I always installed as a paravirtualized machine, Could it be
> >>> that > the install-kernel on the 5.3-media is not aware of
> >>> this and somehow > manages to shot the host (because I noticed
> >>> that most recipies on > the > net, including
> >>> http://wiki.centos.org/HowTos/Xen/ > InstallingCentOSDomU >
> >>> never talk about paravirtualized (so I assume they use a fully
> >>> > virtualized guest)
> >>> >
> >>> > I will try these later today (when people left the office
> >>> and no one > will complain about server downtimes)
> >>> >
> >>> > Bernhard
> >>> >
> >>> > BTW: Just one fundamental question: as the upstream OS
> >>> vendor is > switching his virtualization to KVM anyway, is it
> >>> a good idea to > forget Xen and use KVM (in other words: is it
> >>> stable enough for > production)?
> 
> BG> I tried removing both suspects by
> 
> BG>  - following the Wiki-Howto to the letter (especially using
> BG> the Xen-install-kernels) - instead of going over the network I
> BG> worked directly at the machine (although I totally agree that
> BG> a VNC-session shouldn't be ble to shoot the machine)
> 
> BG> but the problem is still there. When I start the configured
> BG> machine that points to an install-kernel with
> 
> BG> xm create newGuest -c
> 
> BG> I see the kernel boot up until it comes to the message
> 
> BG> Write protecting the kernel read-only data
> 
> BG> where it hangs for some seconds, then the screen goes blank
> BG> and the machine reboots.
> 
> BG> I'm starting to suspect that it is somehow hardware-related
> BG> (it is a Fujitsu-Siemens Synergy server with a
> BG> RAID-controller) and I will investigate in that direction
> 
> 
> -- 
> ---
> DI Bernhard F.W. Gschaider
> ---
> EMail:bernhard.gschai...@ice-sf.at
> WWW  : www.ice-sf.at
> Jabber : bgsch...@jabber.org
> Tel:  +43(3842)98282-42   Fax:+43(3842)98282-02
> ---



> ___
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos

___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Bernhard Gschaider]

> On Thu, 20 Aug 2009 01:47:07 +0200
> "BG" == Bernhard Gschaider  wrote:

BG> Thanks to everyone who took the time to answer in this thread.

BG> I'm just writing this message to give this thread some closure
BG> and am not expecting any answers

I found the cause of my problem. I'll answer to my own posting,
because none of the follow-ups lead to the solution, the reason being
that I withheld some vital information for the diagnosis:

The filesystem which the disk-image for the virtual machine resides on
is XFS!

Googling around I found indications that there are indications that
XEN and XFS are not the best of friends, but nobody hinted at
something as drastic as completely freezing the host.

Anyway. When I create the image on an ext3-partition and point the
configuration to it (no other changes) the installation works without
problems. 

Bernhard

PS: There were speculations in the replies, that this was my first
Xen-experience. I want to stress that I have already a running
Xen-machine, that's why I was surprised that it didn't work this time
(but I set that one up a year ago, so technically I am starting anew
with Xen and the speculations are right)

> On Wed, 19 Aug 2009 10:29:33 -0700 (PDT)
> "IM" == Ian Murray  wrote:

>>> > This (and other replies) lead me to two possible culprits: >
>>> - either the graphical console over X11 is not a good idea
>>> (but I > can't imagine that, it shouldn't shoot the kernel) >
>>> - I always installed as a paravirtualized machine, Could it be
>>> that > the install-kernel on the 5.3-media is not aware of
>>> this and somehow > manages to shot the host (because I noticed
>>> that most recipies on > the > net, including
>>> http://wiki.centos.org/HowTos/Xen/ > InstallingCentOSDomU >
>>> never talk about paravirtualized (so I assume they use a fully
>>> > virtualized guest)
>>> >
>>> > I will try these later today (when people left the office
>>> and no one > will complain about server downtimes)
>>> >
>>> > Bernhard
>>> >
>>> > BTW: Just one fundamental question: as the upstream OS
>>> vendor is > switching his virtualization to KVM anyway, is it
>>> a good idea to > forget Xen and use KVM (in other words: is it
>>> stable enough for > production)?

BG> I tried removing both suspects by

BG>  - following the Wiki-Howto to the letter (especially using
BG> the Xen-install-kernels) - instead of going over the network I
BG> worked directly at the machine (although I totally agree that
BG> a VNC-session shouldn't be ble to shoot the machine)

BG> but the problem is still there. When I start the configured
BG> machine that points to an install-kernel with

BG> xm create newGuest -c

BG> I see the kernel boot up until it comes to the message

BG> Write protecting the kernel read-only data

BG> where it hangs for some seconds, then the screen goes blank
BG> and the machine reboots.

BG> I'm starting to suspect that it is somehow hardware-related
BG> (it is a Fujitsu-Siemens Synergy server with a
BG> RAID-controller) and I will investigate in that direction


-- 
---
DI Bernhard F.W. Gschaider
---
EMail:  bernhard.gschai...@ice-sf.at
WWW  : www.ice-sf.at
Jabber : bgsch...@jabber.org
Tel:+43(3842)98282-42   Fax:+43(3842)98282-02
---


pgpsqDdZT4qZg.pgp
Description: PGP signature
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ian Murray]

- Original Message 
> From: Kai Schaetzl 
> To: centos@centos.org
> Sent: Friday, 21 August, 2009 10:31:22
> Subject: Re: [CentOS] virt-manager crashes Host during installation of guest
> 
> Ian Murray wrote on Fri, 21 Aug 2009 02:09:04 + (GMT):
> 
> > [r...@xen ~]# virt-install -p
> > ERROR    A name is required for the virtual machine.
> 
> Oh, my god. I just gave this extra parameter as I thought it would then ask 
> for
> the missing data. I forgot that you can either have interactive or parameters,
> not a mix.
> You run just "virt-install" then. That's even more "daunting", is it?
> I suppose that was too difficult to figure out yourself?

I never used virt-install and you were going on about how easy it was. Even you 
managed to get it wrong. You forgot and I never knew. I just copied and pasted 
what you stated several times would work. As a newbie would. ;o) As I said 
before, I am pretty *happy* with the way I create my VMs, and this thread isn't 
about how I create them. Getting a massive command-line right can be daunting, 
if you are new to the technology. That's just my opinion.


> 
> > Perhaps for the benefit of the OP, perhaps you could give a complete known 
> working example.
> 
> Hm, surprise, surprise, I gave one.

Okay, I didn't recall, my bad.

> 
> > Well, if you have done such tests, please do share... especially on
> > the xen-users list, as there are far more competent Xen-ers to discuss
> > your findings than me.
> 
> Read it's archives.

Thanks, very helpful. I guess that means 'read it in the archives.' I am sure 
it is easy to find.

> 
> 
> Kai
> 
> -- 
> Kai Schätzl, Berlin, Germany
> Get your web at Conactive Internet Services: http://www.conactive.com
> 
> 
> 
> ___
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos



  
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Kai Schaetzl]

Ian Murray wrote on Fri, 21 Aug 2009 02:09:04 + (GMT):

> [r...@xen ~]# virt-install -p
> ERRORA name is required for the virtual machine.

Oh, my god. I just gave this extra parameter as I thought it would then ask for
the missing data. I forgot that you can either have interactive or parameters,
not a mix.
You run just "virt-install" then. That's even more "daunting", is it?
I suppose that was too difficult to figure out yourself?

> Perhaps for the benefit of the OP, perhaps you could give a complete known 
> working example.

Hm, surprise, surprise, I gave one.

> Well, if you have done such tests, please do share... especially on
> the xen-users list, as there are far more competent Xen-ers to discuss
> your findings than me.

Read it's archives.


Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Mathew S. McCarrell]

virt-install can be interactive if you supply a few necessary options
first.  I've put a sample of what I normally do below.

[r...@dom0 ~]$ /usr/sbin/virt-install -p --nonsparse -b xenbr0

What is the name of your virtual machine? 
How much RAM should be allocated (in megabytes)? 256
What would you like to use as the disk (path)? /xen/images/.disk

How large would you like the disk (/xen/images/) to be
(in gigabytes)? 5

Would you like to enable graphics support? (yes or no) no
What is the install location? http://mirror.clarkson.edu/centos/5.3/os/x86_64/

Also, if your willing to spend a few bucks, the Running Xen book is a great
source of information for anything relating to Xen (and I'm not saying that
just because I'm friends with several of the authors).  Also, you might find
the following slides useful.  http://cosi.clarkson.edu/docs/installingxen/

--
Mathew S. McCarrell
Clarkson University '10

mccar...@gmail.com
mccar...@clarkson.edu
1-518-314-9214



On Thu, Aug 20, 2009 at 10:09 PM, Ian Murray  wrote:

>
>
>
>
> - Original Message 
> > From: Kai Schaetzl 
> > To: centos@centos.org
> > Sent: Thursday, 20 August, 2009 19:31:21
> > Subject: Re: [CentOS] virt-manager crashes Host during installation of
> guest
> >
> > Ian Murray wrote on Thu, 20 Aug 2009 14:21:33 + (GMT):
> >
> > > Actual, virt-install commmand line looks no less daunting to me.
> >
> > What is "daunting" about "virt-install -p"?
>
> [r...@xen ~]# virt-install -p
> ERRORA name is required for the virtual machine.
> [r...@xen ~]# virt-install -p -n newdom
> ERRORMemory amount is required for the virtual machine.
> [r...@xen ~]# virt-install -p -n newdom -r 256
> ERRORA disk must be specified (use --nodisks to override)
>
> So it goes on... I suppose once you plough through all the options and save
> the whole command somewhere, then it is trivial to create new ones, but I
> got the impression that it was interactive for any missing options.
>
> Perhaps for the benefit of the OP, perhaps you could give a complete known
> working example.
>
> >
> > > I don't know if that is possible under virt-install.
> >
> > Everything is possible, it depends on how deep you want to dig into it.
> This guy
> > just wants to get his first Xen VM up for some testing (I suppose). There
> is no
> > need to follow lengthy explanations and fail in the end if there is a
> simple
> > command available.
> >
> > > I think tap:aio is more favoured than file, for performance reasons.
> >
> > This is general belief. I suggest doing some tests. After that you may
> think
> > different. ;-) Also, there have been various problems with tap:aio
> devices in
> > the
> > various Xen incarnations over time that weren't present in file.
>
> Well, if you have done such tests, please do share... especially on the
> xen-users list, as there are far more competent Xen-ers to discuss your
> findings than me.
>
> > You want to use LVM or remote storage for real world usage, anyway, but
> that
> > wasn't the task outlined by the OP.
>
> File based domains initially seemed the simplest way for me, but after a
> while I concluded they were a but of a pain actually, so indeed I do stick
> with LVs.
>
>
>
>
> ___
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ian Murray]

- Original Message 
> From: Kai Schaetzl 
> To: centos@centos.org
> Sent: Thursday, 20 August, 2009 19:31:21
> Subject: Re: [CentOS] virt-manager crashes Host during installation of guest
> 
> Ian Murray wrote on Thu, 20 Aug 2009 14:21:33 + (GMT):
> 
> > Actual, virt-install commmand line looks no less daunting to me.
> 
> What is "daunting" about "virt-install -p"?

[r...@xen ~]# virt-install -p
ERRORA name is required for the virtual machine.
[r...@xen ~]# virt-install -p -n newdom
ERRORMemory amount is required for the virtual machine.
[r...@xen ~]# virt-install -p -n newdom -r 256
ERRORA disk must be specified (use --nodisks to override)

So it goes on... I suppose once you plough through all the options and save the 
whole command somewhere, then it is trivial to create new ones, but I got the 
impression that it was interactive for any missing options.

Perhaps for the benefit of the OP, perhaps you could give a complete known 
working example.

> 
> > I don't know if that is possible under virt-install.
> 
> Everything is possible, it depends on how deep you want to dig into it. This 
> guy
> just wants to get his first Xen VM up for some testing (I suppose). There is 
> no
> need to follow lengthy explanations and fail in the end if there is a simple 
> command available.
> 
> > I think tap:aio is more favoured than file, for performance reasons.
> 
> This is general belief. I suggest doing some tests. After that you may think 
> different. ;-) Also, there have been various problems with tap:aio devices in 
> the
> various Xen incarnations over time that weren't present in file.

Well, if you have done such tests, please do share... especially on the 
xen-users list, as there are far more competent Xen-ers to discuss your 
findings than me.

> You want to use LVM or remote storage for real world usage, anyway, but that 
> wasn't the task outlined by the OP.

File based domains initially seemed the simplest way for me, but after a while 
I concluded they were a but of a pain actually, so indeed I do stick with LVs.



  
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Mathew S. McCarrell]

I definitely think if your new to Xen and are use to doing normal CD
installs, then virt-install is the easiest way to go.

Also, you could consider using prebuilt images that are already made
depending on your needs.  These can be found on stacklet.com.

Hope that helps,
Matt

--
Mathew S. McCarrell
Clarkson University '10

mccar...@gmail.com
mccar...@clarkson.edu
1-518-314-9214



On Thu, Aug 20, 2009 at 2:31 PM, Kai Schaetzl wrote:

> Ian Murray wrote on Thu, 20 Aug 2009 14:21:33 + (GMT):
>
> > Actual, virt-install commmand line looks no less daunting to me.
>
> What is "daunting" about "virt-install -p"?
>
> > I don't know if that is possible under virt-install.
>
> Everything is possible, it depends on how deep you want to dig into it.
> This guy
> just wants to get his first Xen VM up for some testing (I suppose). There
> is no
> need to follow lengthy explanations and fail in the end if there is a
> simple
> command available.
>
> > I think tap:aio is more favoured than file, for performance reasons.
>
> This is general belief. I suggest doing some tests. After that you may
> think
> different. ;-) Also, there have been various problems with tap:aio devices
> in the
> various Xen incarnations over time that weren't present in file.
> You want to use LVM or remote storage for real world usage, anyway, but
> that
> wasn't the task outlined by the OP.
>
> Kai
>
> --
> Kai Schätzl, Berlin, Germany
> Get your web at Conactive Internet Services: http://www.conactive.com
>
>
>
> ___
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Kai Schaetzl]

Ian Murray wrote on Thu, 20 Aug 2009 14:21:33 + (GMT):

> Actual, virt-install commmand line looks no less daunting to me.

What is "daunting" about "virt-install -p"?

> I don't know if that is possible under virt-install.

Everything is possible, it depends on how deep you want to dig into it. This guy
just wants to get his first Xen VM up for some testing (I suppose). There is no
need to follow lengthy explanations and fail in the end if there is a simple 
command available.

> I think tap:aio is more favoured than file, for performance reasons.

This is general belief. I suggest doing some tests. After that you may think 
different. ;-) Also, there have been various problems with tap:aio devices in 
the
various Xen incarnations over time that weren't present in file.
You want to use LVM or remote storage for real world usage, anyway, but that 
wasn't the task outlined by the OP.

Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ian Murray]

> 
> Again, I think this is the wrong way to go, it's outdated. I've never done 
> it this way and I think this How-To is derived from very old Xen versions 
> and got updated a few times over time without changing the basics. It 
> *may* work, but it's complicated to follow and overly complex, e.g. you 
> can very easily make a tiny mistake and never get going which is highly 
> frustrating.

Actual, virt-install commmand line looks no less daunting to me. The Wiki 
described method should work for all RH derived distributions that are Xen PV 
compatible. I tried SME (or it might have been Trixbox... or both!) and it 
installed okay, but the kernel wasn't happy in a Xen world. Could fix it, but 
was lazy and used hardware virtualisation. Personally, I prefer to keep swap on 
a seperate partition, as it makes it easier to mount root. I don't know if that 
is possible under virt-install.

To be honest, I don't really think there are too many shortcuts with Xen, 
because it pays to understand how it works at a lower level, how to mount 
loopbacks, even with LVM's inside them, etc. I can't really remember the 
options under virt-install, but if they do 'dumb things down', then that may 
not be helpful in the long run. 

Anyway, both ways are way more friendly than debootstrapping your Debian 
system. ;o)


> disk = [ "file:/home2/vm/d-minimal.img,xvda,w"]

I think tap:aio is more favoured than file, for performance reasons.



  
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Kai Schaetzl]

Bernhard Gschaider wrote on Thu, 20 Aug 2009 01:47:07 +0200:

> - following the Wiki-Howto to the letter (especially using the
>Xen-install-kernels)

Again, I think this is the wrong way to go, it's outdated. I've never done 
it this way and I think this How-To is derived from very old Xen versions 
and got updated a few times over time without changing the basics. It 
*may* work, but it's complicated to follow and overly complex, e.g. you 
can very easily make a tiny mistake and never get going which is highly 
frustrating.

As I wrote, just do a "virt-install -p" and that's all. No "install 
kernels", no creation of an image file, no nothing. virt-install will do 
everything for you. Once the VM has been setup and saved you can create a 
config-file and put it in /etc/xen and then "xm create" the machine.
Straight-forward and easy. The config-file is going to look like this:
name = "d-mini"
maxmem = 128
memory = 128
vcpus = 1
bootloader = "/usr/bin/pygrub"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
#vfb = [ "type=vnc,vncdisplay=12,vncunused=1" ]
disk = [ "file:/home2/vm/d-minimal.img,xvda,w"]
vif = [ "mac=00:16:3e:43:18:13" ]

And if you prefer kickstart a (replace with your own data)

virt-install -p --location=ftp:// --noautoconsole --nographics --
file=/.../d-minimal.img --file-size=1 --name=d-mini --ram=256 -x 
"ks=ftp://.../minimal-file.ks ip=192.168.1.* netmask=255.255.255.0 
dns=192.168.1.* gateway=192.168.1.*"

gets you in business in less than 10 minutes without any manual 
intervention.

Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Bernhard Gschaider]

Thanks to everyone who took the time to answer in this thread.

I'm just writing this message to give this thread some closure and am
not expecting any answers 

> On Wed, 19 Aug 2009 10:29:33 -0700 (PDT)
> "IM" == Ian Murray  wrote:

>> > This (and other replies) lead me to two possible culprits: >
>> - either the graphical console over X11 is not a good idea (but
>> I > can't imagine that, it shouldn't shoot the kernel) > - I
>> always installed as a paravirtualized machine, Could it be that
>> > the install-kernel on the 5.3-media is not aware of this and
>> somehow > manages to shot the host (because I noticed that most
>> recipies on > the > net, including
>> http://wiki.centos.org/HowTos/Xen/ > InstallingCentOSDomU >
>> never talk about paravirtualized (so I assume they use a fully
>> > virtualized guest)
>> >
>> > I will try these later today (when people left the office and
>> no one > will complain about server downtimes)
>> >
>> > Bernhard
>> >
>> > BTW: Just one fundamental question: as the upstream OS vendor
>> is > switching his virtualization to KVM anyway, is it a good
>> idea to > forget Xen and use KVM (in other words: is it stable
>> enough for > production)?

IM> Sorry for thread mucking. I did not receive this email, but
IM> took it from a response.

IM> The Xen wiki describes a paravirtual install. The config file
IM> would have a line like builder="hvm" if it was fully
IM> virtualised guest. AFAIK the graphical view is just a VNC
IM> session, so I would be surprised if that managed to trash your
IM> kernel. More likely it's something that the guest is doing
IM> that is causing the issue. You could always prepare your
IM> guests on a different machine and transfer them
IM> later. Ofcourse, if you had a command of xm, that is.

I tried removing both suspects by

 - following the Wiki-Howto to the letter (especially using the
   Xen-install-kernels)
 - instead of going over the network I worked directly at the machine
   (although I totally agree that a VNC-session shouldn't be ble to shoot
   the machine)

but the problem is still there. When I start the configured machine
that points to an install-kernel with

xm create newGuest -c

I see the kernel boot up until it comes to the message

Write protecting the kernel read-only data

where it hangs for some seconds, then the screen goes blank and the
machine reboots.

I'm starting to suspect that it is somehow hardware-related (it is a
Fujitsu-Siemens Synergy server with a RAID-controller) and I will
investigate in that direction

IM> As I said before, I would recommend the xen list for this
IM> specific issue.

Will look there to, thanks

IM> As for the Xen vs whatever issue, I was disappointed when it
IM> became clear that Upstream was going to push another
IM> technology, having spent last year or two trying to learn Xen
IM> (and I am no expert, at all). Having said that, I've heard of
IM> issues with speed with KVM and I haven't had any such issues
IM> with Xen. My only issue with Xen is that the official releases
IM> are based on quite an old kernel, which is fine for CentOS, bc
IM> it is the same as the vanilla kernel. Anecdotally, a lot of
IM> issues on the xen list IMHO seem to arise from ppl using later
IM> patched kernels, which perhaps isn't the best route for
IM> stability.

As I'm using the latest kernel that comes with the 5.3-updates and the
machine has nothing but the standard-5.3 stuff on it, I don't think
this is the case

Bernhard


pgpsAMvZLWlJK.pgp
Description: PGP signature
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Karanbir Singh]

On 08/19/2009 12:52 PM, Bernhard Gschaider wrote:
>   - I always installed as a paravirtualized machine, Could it be that
> the install-kernel on the 5.3-media is not aware of this

the default install kernel is not used for the Xen install process, you 
want the stuff inside ~/images/xen/ for that.


-- 
Karanbir Singh : http://www.karan.org/  : 2522...@icq
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Kai Schaetzl]

Bernhard Gschaider wrote on Wed, 19 Aug 2009 13:52:52 +0200:

> - I always installed as a paravirtualized machine, Could it be that
>the install-kernel on the 5.3-media is not aware of this and somehow
>manages to shot the host

I haven't done completely new xen setups on 5.3 yet, only on earlier 
kernels and for these the answer is: no.

> (because I noticed that most recipies on the
>net, including http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU
>never talk about paravirtualized (so I assume they use a fully
>virtualized guest)

Most of the recipes I know of either use virsh (which needs libvirt and is 
not xen-specific) or they advocate some oldish ways (like bootstrapping 
from a kernel outside of the VM) or are not aware of paravirtualization.

A "virt-install -p" (for paravirtualized) should get you going in an 
interactive fashion. If you have a kickstart file you can do a completely 
automated install with virt-install.

Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ian Murray]

> > This (and other replies) lead me to two possible culprits:
> > - either the graphical console over X11 is not a good idea (but I
> >   can't imagine that, it shouldn't shoot the kernel)
> > - I always installed as a paravirtualized machine, Could it be that
> >   the install-kernel on the 5.3-media is not aware of this and somehow
> >   manages to shot the host (because I noticed that most recipies on  
> > the
> >   net, including http://wiki.centos.org/HowTos/Xen/ 
> > InstallingCentOSDomU
> >   never talk about paravirtualized (so I assume they use a fully
> >   virtualized guest)
> >
> > I will try these later today (when people left the office and no one
> > will complain about server downtimes)
> >
> > Bernhard
> >
> > BTW: Just one fundamental question: as the upstream OS vendor is
> > switching his virtualization to KVM anyway, is it a good idea to
> > forget Xen and use KVM (in other words: is it stable enough for
> > production)?

Sorry for thread mucking. I did not receive this email, but took it from a 
response.

The Xen wiki describes a paravirtual install. The config file would have a line 
like builder="hvm" if it was fully virtualised guest. AFAIK the graphical view 
is just a VNC session, so I would be surprised if that managed to trash your 
kernel. More likely it's something that the guest is doing that is causing the 
issue. You could always prepare your guests on a different machine and transfer 
them later. Ofcourse, if you had a command of xm, that is.

As I said before, I would recommend the xen list for this specific issue.

As for the Xen vs whatever issue, I was disappointed when it became clear that 
Upstream was going to push another technology, having spent last year or two 
trying to learn Xen (and I am no expert, at all). Having said that, I've heard 
of issues with speed with KVM and I haven't had any such issues with Xen. My 
only issue with Xen is that the official releases are based on quite an old 
kernel, which is fine for CentOS, bc it is the same as the vanilla kernel. 
Anecdotally, a lot of issues on the xen list IMHO seem to arise from ppl using 
later patched kernels, which perhaps isn't the best route for stability. 



  
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ross Walker]

On Aug 19, 2009, at 7:52 AM, Bernhard Gschaider  wrote:

>
> Thanks for the replies so far.
>
>> On Wed, 19 Aug 2009 11:06:08 +0100
>> "MMG" == Marcelo M Garcia   
>> wrote:
>
>MMG> Bernhard Gschaider wrote:
>>> Hi!
>>>
>>> I have the following problem: I have a server (CentOS 5.3
>>> x86_64) on which I want to install a virtual Xen-machine
>>> (CentOS 5.3 x86_64), I ssh from my workstation (Centos 5.3
>>> x86_64  do you see the pattern ;) ) to that server and
>>> start the virt-manager. I create a new Guest (Paravirtualiuzed)
>>> and point it to the server with the installation files (CentOS
>>> 5.3, but I already said that). The manager creates the disk
>>> image an then opens the Graphical console for
>>> installation. Sometime around the point where the installation
>>> program wants me to select the keyboard the graphical console
>>> it freezes. The server is completely dead (no console, no disk
>>> activity, no ping, only a reset will "repair" it)
>>>
>>> My question: am I doing something stupid? But I figured
>>> "They're all the same system, this must work"
>>>
>>> I don't want to play around with it too much as the server is
>>> also our file-server and people start complaining.
>>>
>>> So any hint will be greatly appreciated (otherwise I'll have to
>>> setup another machine for the guests)
>>>
>
>MMG> I use the virt-manager, but I always use a kickstart to do
>MMG> the installation and I never had problems.
>
> This (and other replies) lead me to two possible culprits:
> - either the graphical console over X11 is not a good idea (but I
>   can't imagine that, it shouldn't shoot the kernel)
> - I always installed as a paravirtualized machine, Could it be that
>   the install-kernel on the 5.3-media is not aware of this and somehow
>   manages to shot the host (because I noticed that most recipies on  
> the
>   net, including http://wiki.centos.org/HowTos/Xen/ 
> InstallingCentOSDomU
>   never talk about paravirtualized (so I assume they use a fully
>   virtualized guest)
>
> I will try these later today (when people left the office and no one
> will complain about server downtimes)
>
> Bernhard
>
> BTW: Just one fundamental question: as the upstream OS vendor is
> switching his virtualization to KVM anyway, is it a good idea to
> forget Xen and use KVM (in other words: is it stable enough for
> production)?

Xen still has it's place as it's fully paravirtualized domains are  
still way faster then any fully virtualized setups.

Plus it's the only hypervisor I know of that let's you pass-through  
just about any PCI device to a domU.

Once VMware gets their pass-through generalized and Intel gets their  
next generation hardware virtualization technology mainstreamed, Xen  
won't have such an edge in those areas.

I still have yet to see a VMware/KVM framework for cloud computing  
where VMs can be seemlessly transferred between hosts or even to an  
off-site virtualization provider.

-Ross

___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Bernhard Gschaider]

Thanks for the replies so far.

> On Wed, 19 Aug 2009 11:06:08 +0100
> "MMG" == Marcelo M Garcia  wrote:

MMG> Bernhard Gschaider wrote:
>> Hi!
>> 
>> I have the following problem: I have a server (CentOS 5.3
>> x86_64) on which I want to install a virtual Xen-machine
>> (CentOS 5.3 x86_64), I ssh from my workstation (Centos 5.3
>> x86_64  do you see the pattern ;) ) to that server and
>> start the virt-manager. I create a new Guest (Paravirtualiuzed)
>> and point it to the server with the installation files (CentOS
>> 5.3, but I already said that). The manager creates the disk
>> image an then opens the Graphical console for
>> installation. Sometime around the point where the installation
>> program wants me to select the keyboard the graphical console
>> it freezes. The server is completely dead (no console, no disk
>> activity, no ping, only a reset will "repair" it)
>> 
>> My question: am I doing something stupid? But I figured
>> "They're all the same system, this must work"
>> 
>> I don't want to play around with it too much as the server is
>> also our file-server and people start complaining.
>> 
>> So any hint will be greatly appreciated (otherwise I'll have to
>> setup another machine for the guests)
>> 

MMG> I use the virt-manager, but I always use a kickstart to do
MMG> the installation and I never had problems.

This (and other replies) lead me to two possible culprits:
 - either the graphical console over X11 is not a good idea (but I
   can't imagine that, it shouldn't shoot the kernel)
 - I always installed as a paravirtualized machine, Could it be that
   the install-kernel on the 5.3-media is not aware of this and somehow
   manages to shot the host (because I noticed that most recipies on the
   net, including http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU
   never talk about paravirtualized (so I assume they use a fully
   virtualized guest)

I will try these later today (when people left the office and no one
will complain about server downtimes)

Bernhard

BTW: Just one fundamental question: as the upstream OS vendor is
switching his virtualization to KVM anyway, is it a good idea to
forget Xen and use KVM (in other words: is it stable enough for
production)?


pgpcYIOMGWB0c.pgp
Description: PGP signature
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Marcelo M. Garcia]

Bernhard Gschaider wrote:
> Hi!
> 
> I have the following problem: I have a server (CentOS 5.3 x86_64) on
> which I want to install a virtual Xen-machine (CentOS 5.3 x86_64), I
> ssh from my workstation (Centos 5.3 x86_64  do you see the pattern ;) )
> to that server and start the virt-manager. I create a new Guest
> (Paravirtualiuzed) and point it to the server with the installation
> files (CentOS 5.3, but I already said that). The manager creates the
> disk image an then opens the Graphical console for
> installation. Sometime around the point where the installation program
> wants me to select the keyboard the graphical console it freezes. The
> server is completely dead (no console, no disk activity, no ping, only
> a reset will "repair" it)
> 
> My question: am I doing something stupid? But I figured "They're all
> the same system, this must work"
> 
> I don't want to play around with it too much as the server is also our
> file-server and people start complaining.
> 
> So any hint will be greatly appreciated (otherwise I'll have to setup
> another machine for the guests)
> 
> Bernhard
> 
> 
> 
> 
> 
> ___
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
Hi

I use the virt-manager, but I always use a kickstart to do the 
installation and I never had problems.

Regards

mg.

___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Kai Schaetzl]

Bernhard Gschaider wrote on Tue, 18 Aug 2009 19:56:36 +0200:

> My question: am I doing something stupid? But I figured "They're all
> the same system, this must work"
> 
> I don't want to play around with it too much as the server is also our
> file-server and people start complaining.
> 
> So any hint will be greatly appreciated (otherwise I'll have to setup
> another machine for the guests)

Can't help with figuring out the virt-manager problem. My first steps with 
Xen where with virt-manager, but that's been a long time ago (and it 
worked fine back then). I haven't looked at it since then. You simply 
don't need it, usually you don't want to run any X on a server. 

virt-install works fine, is command-line and you can either have it ask 
for all the parameters or you can provide all of them, so it's a "one 
command" installation.

Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] virt-manager crashes Host during installation of guest

[Ian Murray]

- Original Message 
> From: Bernhard Gschaider 
> To: centos@centos.org
> Sent: Tuesday, 18 August, 2009 18:56:36
> Subject: [CentOS] virt-manager crashes Host during installation of guest
> 
> 
> Hi!
> 
> I have the following problem: I have a server (CentOS 5.3 x86_64) on
> which I want to install a virtual Xen-machine (CentOS 5.3 x86_64), I
> ssh from my workstation (Centos 5.3 x86_64  do you see the pattern ;) )
> to that server and start the virt-manager. I create a new Guest
> (Paravirtualiuzed) and point it to the server with the installation
> files (CentOS 5.3, but I already said that). The manager creates the
> disk image an then opens the Graphical console for
> installation. Sometime around the point where the installation program
> wants me to select the keyboard the graphical console it freezes. The
> server is completely dead (no console, no disk activity, no ping, only
> a reset will "repair" it)
> 
> My question: am I doing something stupid? But I figured "They're all
> the same system, this must work"
> 
> I don't want to play around with it too much as the server is also our
> file-server and people start complaining.
> 
> So any hint will be greatly appreciated (otherwise I'll have to setup
> another machine for the guests)

Personally, I use the technique described in the Wiki  - 
http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU 

It has worked flawlessly for me every time. Once you have one install config 
file and one for running, you can easily make copies to accommodate extra 
guests. You don't have to do the kickstart bit if you're happy to select your 
options at install time, like a normal install.

When I did first use virt-manager, it seemed okay. I didn't want to become 
dependent on a GUI tool, though.

xen-user list is a good place for further Xen specific advice.

I would also recommend using the Xen hypervisor and tools at the gitco 
repository. http://www.gitco.de/repo/



  
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

[CentOS] virt-manager crashes Host during installation of guest

[Bernhard Gschaider]

Hi!

I have the following problem: I have a server (CentOS 5.3 x86_64) on
which I want to install a virtual Xen-machine (CentOS 5.3 x86_64), I
ssh from my workstation (Centos 5.3 x86_64  do you see the pattern ;) )
to that server and start the virt-manager. I create a new Guest
(Paravirtualiuzed) and point it to the server with the installation
files (CentOS 5.3, but I already said that). The manager creates the
disk image an then opens the Graphical console for
installation. Sometime around the point where the installation program
wants me to select the keyboard the graphical console it freezes. The
server is completely dead (no console, no disk activity, no ping, only
a reset will "repair" it)

My question: am I doing something stupid? But I figured "They're all
the same system, this must work"

I don't want to play around with it too much as the server is also our
file-server and people start complaining.

So any hint will be greatly appreciated (otherwise I'll have to setup
another machine for the guests)

Bernhard

-- 
---
DI Bernhard F.W. Gschaider
---
EMail:  bernhard.gschai...@ice-sf.at
WWW  : www.ice-sf.at
Jabber : bgsch...@jabber.org
Tel:+43(3842)98282-42   Fax:+43(3842)98282-02
---


pgpc5U4uCtqrb.pgp
Description: PGP signature


pgp1jR1ZNiBts.pgp
Description: PGP signature
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos