Booting with two (2 ) device graphic adapters.

[Paulo]

Hello All.


I have a singular problem booting Fedora, and is an interisting problem.

I have a Dell Notebook XPS-15z ( i7-2620M - 8GB RAM ).
It has two (2) device graphic adapters.
-- 1) Intel HD Graphics 3000 (integrated).
-- 2) NVIDIA GeForce GT 525M 3D-Vision.

OK .. Lets go to the problem...

During Booting Process the video drivers Nouveau or  Vesa, depending on boot
option, can`t identify that there are 2 graphic adapters,
or they can`t allocate one of them to use,
and then the booting process is halted with a white screen.

There are some kind of Kernel parameters to specify to the video driver that
it must allocate only one device graphic adapter
on machines with two graphic adapters 

Interesting problem...
Thanks all.
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Re: 2.6.40 kernel?

[Rahul Sundaram]

On 08/03/2011 10:45 AM, Ranjan Maitra wrote:
> Just wondering: the 2.6.40 kernel made it into F15 on Tuesday, What is
> this kernel about? There appears to be no 2.6.40 kernel on
> www.kernel.org.

https://plus.google.com/106327083461132854143/posts/SbnL3KaVRtM

Rahul
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Re: 2.6.40 kernel?

[Michael D. Setzer II]

On 3 Aug 2011 at 0:15, Ranjan Maitra wrote:

Date sent:  Wed, 3 Aug 2011 00:15:23 -0500
From:   Ranjan Maitra 
To: Community support for Fedora users 

Subject:2.6.40 kernel?
Organization:   Department of Statistics, Iowa State University
Send reply to:  Community support for Fedora users 




> Just wondering: the 2.6.40 kernel made it into F15 on Tuesday, What is
> this kernel about? There appears to be no 2.6.40 kernel on
> www.kernel.org.

>From what I understand, what would have been 2.6.40 was 
changed to 3.0, so don't know why fedora would use 2.6.40?



> 
> Ranjan
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  Guam Community College  Computer Center  
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  http://www.guam.net/home/mikes
  Guam - Where America's Day Begins
  G4L Disk Imaging Project maintainer 
  http://sourceforge.net/projects/g4l/
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(Total Hours: 287,489)

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2.6.40 kernel?

[Ranjan Maitra]

Just wondering: the 2.6.40 kernel made it into F15 on Tuesday, What is
this kernel about? There appears to be no 2.6.40 kernel on
www.kernel.org.

Ranjan
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Re: which process display a given window?

[Frantisek Hanzlik]

Bryn M. Reeves wrote:
> On 08/01/2011 11:39 AM, Frantisek Hanzlik wrote:
>> How generally I can state which process display it?
>> I would expect, when right-clicking on window top title bar, some
>> item as e.g. "window properties" - where would be possible find info
>> about process displaying this window. But there isn't nothing of the
>> kind. Thus, is there other way discovering this?
>>
>> I forgot mention, I'm now in F15 using XFCE (but IMO in Gnome window
>> manager has not capability too).
> 
> In f15 the gnome and xfce window managers both seem to set a window manager 
> hint
> that includes the process ID so you can probably get this by running xwininfo
> and clicking the suspect window:
> 
> $ xwininfo -wm
> 
> xwininfo: Please select the window about which you
>   would like information by clicking the
>   mouse in that window.
> 
> xwininfo: Window id: 0x225 "bmr@bmr:~"
> 
>   Window manager hints:
>   Client accepts input or input focus: Yes
>   Initial state is Normal State
>   Displayed on desktop 0
>   Window type:
>   Normal
>   Process id: 2157 on host bmr.fab.redhat.com
>   Frame extents: 1, 1, 28, 2
> 
> $ pga 2157
>  2157 ?Sl 0:05 gnome-terminal
> 24640 pts/0S+ 0:00 grep --color=auto 2157
> 
> Regards,
> Bryn.

Tim, Patrick, Bryn - thanks for valuable tips. xwininfo and xprop
are both capable return PID and hostname of window controlling process,
which is all I need.

Btw, my cryptic process was LXDA Policykit Authentication Agent
(/usr/libexec/lxpolkit). I not know why it is launched from XFCE session,
maybe some relict from my previous experiments when I was searching some
replacement for Gnome 2.x.
Fortunately, this applet is well described in XFCE Preferences menu
(in contrast with crippled ones as "load color profiles", "unlock
 certificates" and other weird named applets, for which is problem
locate destination file), thus wasn't problem disable it.

Franta H
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Re: NFS shared directory permission (rhel6)

[夜神 岩男]

On 08/03/2011 04:57 AM, Steve Searle wrote:
> Around 05:51pm on Tuesday, August 02, 2011 (UK time), Tom H scrawled:
>
>> On Mon, Aug 1, 2011 at 8:57 AM, Steve Searle  wrote:
>>>
>>> I know. If you read my website it says that the firewall can cause a
>>> file to be read-only.
>>
>> Which firewall settings cause NFS exports to be ro?
>
> I already pointed to the webpage. Its here:
> http://www.stevesearle.com/tech/faq.html#nfs0010
>
> I'm not going to rewrite it in an email

This is not what I have experienced with NFSv4. NFSv3 had specific port 
requirements for random rpc daemons, but with NFSv4 you only need TCP 
2049 open (or whatever you set it to) -- that was one of the more 
tangible improvements over the previous versions.

And this is what I meant about documentation on the subject being 
generally out of date or not accurate as per the current Linux standard 
(as in, not Solaris circa 2001 documentation...).

The following iptables were exported from a server running SSH (tcp 22) 
OpenLDAP (tcp 389), NFSv4 (tcp 2049) and Kerberos KDC/Kadmin (88 and 
749). This server provides rw exports with authenticated rw file 
permissions and correct SELinux contexts for several shares:

# Generated by iptables-save v1.4.7 on Wed Aug  3 13:41:04 2011
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [4538677:6498063300]
-A INPUT -p tcp -m tcp --dport 88 -j ACCEPT
-A INPUT -p udp -m udp --dport 88 -j ACCEPT
-A INPUT -p udp -m udp --dport 749 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 749 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 2049 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 389 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Wed Aug  3 13:41:04 2011

-Iwao
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Re: automatic internet connection & connection to printers on network & cannot locate network manager

[Jatin K]

On Wednesday 03 August 2011 10:05 AM, Nermin Celik wrote:

Hello,

Fedora version: 14
Computer is connected to a network.

Issues:
1. need to activate internet connection manually after log-on. I'd 
like this to be done automatically when computer starts.

2. cannot print, printers available on the network are not seen.

Troubleshooting:
1. User guide F14 page 26-27, section '7.2. The Network Manager window' .
/Connect automatically : If checked, Network Manager will activate 
this connection when its
network resources are available. If unchecked, the connection must be 
manually activated by you.

/
hmm...cannot locate the network manager

Sorry for the trouble...

Regards,
Nermin


what is the output of ifconfig command 



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automatic internet connection & connection to printers on network & cannot locate network manager

[Nermin Celik]

Hello,

Fedora version: 14
Computer is connected to a network.

Issues:
1. need to activate internet connection manually after log-on. I'd like this
to be done automatically when computer starts.
2. cannot print, printers available on the network are not seen.

Troubleshooting:
1. User guide F14 page 26-27, section '7.2. The Network Manager window' .
*Connect automatically : If checked, Network Manager will activate this
connection when its
network resources are available. If unchecked, the connection must be
manually activated by you.
*
hmm...cannot locate the network manager

Sorry for the trouble...

Regards,
Nermin
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xbmc "Unit akmods.service entered failed state."

[oleksandr korneta]

Greetings,

While playing with xbmc on F15 x86_64 my computer completely freezes 
after several minutes. There is no reaction to keyboard or mouse events, 
I can't even connect trough SSH, only hard reset helps.

After reboot the last thing I see in /var/log/messages from the previous 
session is either

systemd[1]: akmods.service: control process exited, code=exited status=128
systemd[1]: Unit akmods.service entered failed state.

or simpy
systemd[1]: Unit akmods.service entered failed state.

The case is very repeatable, Sometimes I survive for longer than 15 
minutes, but mostly this happens within several minutes. There is no 
particular action that leads to this, sometime the computer freezes 
while idling. I have never had anything like that happening with any 
other software, and I run lots of various stuff.

Can anyone suggest where do I complain? The xbmc is installed from 
rpmfusion, so is akmod-nvidia and xorg-x11-drv-nvidia-libs. How do I 
diagnose this somewhat further to be able to submit more info to devs?



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regards,
atenrok

I'm running F14 and F15 x86_64, should this matter.

/The nice thing about standards is that there are so many to choose from./



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Re: Progress?

[Frantisek Hanzlik]

James McKenzie wrote:
> On 8/1/11 11:46 PM, Ian Malone wrote:
>> On 1 August 2011 17:52, Stuart McGraw  wrote:
>>..
>> but none of those.) As others have said the last two:
>> * Give us back the assurance of never having to reboot.
> This is a silly requirement.  There are always reasons to reboot.  What 
> you mean, from what I gather, is don't make me reboot unless it is 
> absolutely necessary (major kernel upgrade type stuff...)

I agree, reboot after kernel upgrade is perhaps tolerable.

>> * Give us back the legendary reliability that was the hallmark of
>> Linux and Fedora.
> Who are you kidding here.  Fedora != reliability.  RedHat === 
> reliability (I work with RH 5.6/RH 6 servers and they HAVE to be reliable.)

>From RH 4.x up to F12-F13 I wasn't afraid put it to servers (either
productions) even several weeks before final distro release. And all
works well, although sometimes with particular, quickly repaired problems.
F14 and F15 are from my experience troubled, at least for me. There are
unstable pieces as sssd, replace openssl with nss, systemd, and others.
Plus desktop stuff, with from bad to worse, always problematic vga drivers
(not server, but desktop problem, and most likely affected by accidental
HW/political things in this area). For years I sneered to mswindows users
for their machine freezes - and now it is reality on Fedora Linux desktops,
X on my Intel 82G35 based PC hung at least once a week (and as can see,
I'm not single afflicted).

Uptime from one my unattended server/desktop mix (CIFS server for small
firm with cca 6 win PCs + LTSP server for 3 diskless K12LTSP stations
(implied NFS stuff) + itself acting as desktop for 7 days x 12 hours
dispatching service + some other network services /ntp,dns,dhcp,dovecot,
squid,xfs,sendmail+clamav/regex/greylist milters,squirrelmail/apache,
saslauthd,cups,...):

$ cat /proc/version
Linux version 2.6.23.17-88.fc7 (mockbu...@xenbuilder2.fedora.redhat.com) (gcc 
version 4.1.2 20070925 (Red Hat 4.1.2-27)) #1 SMP Thu May 15 00:35:10 EDT 2008
$ cat /proc/uptime
90926960.50 211065.67
$ bc -l <<<"90926960.50/(24*3600)"
1052.39537615740740740740

(it is from old gold FedoraUn*x times, not today's FedoraWinDOS era ;)

Franta Hanzlik
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Gnome3 and Cursor Movements

[Andre Robatino]

Gregory P. Ennis  PoMec.Net> writes:

> I have finally got F15 installed after great tribulation with the 'Oh
> No' messages.  Now that I have it installed, I find gnome3 difficult to
> use because of the time delay of the highlight bars that allow you to
> select programs.  Even when I try to pick "Applications" it takes about
> 6 seconds to highlight. Is this a limit of gnome3 working on a slower
> machine or has anyone else had this problem?

I see a several second delay as well. I avoid it by instead typing a few letters
of the application name until the one I want is highlighted, and hit Enter. If
you know how many letters to type, you can hit Enter immediately without waiting
for the app to be displayed. For example to start Transmission I hit the Windows
key, type "tr" and Enter immediately. (Of course if you have a lot of apps
installed you may need another letter or two.)




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Re: Virtualization

[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

-- 

=
"Some people succeed because they are destined to,
but most people succeed because they are determined to."

--Henry Ford

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Re: Virtualization

[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

-- 

==
"Only two things are infinite,
the universe and human stupidity,
and I'm not sure about the former."

-- Albert Einstein




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Gnome3 and Cursor Movements

[Gregory P. Ennis]

I have finally got F15 installed after great tribulation with the 'Oh
No' messages.  Now that I have it installed, I find gnome3 difficult to
use because of the time delay of the highlight bars that allow you to
select programs.  Even when I try to pick "Applications" it takes about
6 seconds to highlight. Is this a limit of gnome3 working on a slower
machine or has anyone else had this problem?
-- 
Greg Ennis
PoMec Corporation
www.PoMec.net 


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Re: Progress?

[James McKenzie]

On 8/1/11 11:46 PM, Ian Malone wrote:
> On 1 August 2011 17:52, Stuart McGraw  wrote:
>> On 08/01/2011 03:31 AM, Fernando Cassia wrote:
>>>
>>> On Mon, Aug 1, 2011 at 04:14, Gilboa 
>>> Davaramailto:gilb...@gmail.com>>  wrote:
>>>
>>>  ... Because if you were actually trying to be constructive, oh man, you
>>>  chose the wrong way to do it.
>>>
>>>
>>> I always applaud civilized and well-argumented rants. They are good lists 
>>> of annoyances (real or perceived) from end users, and people on the list 
>>> end up learning one thing or another as part of the exchange of opinions.
>> I agree.  I always thought it sad and counter-productive
>> that user complaints are not more welcomed as indicators
>> of where developers' view users' needs and users' view of
>> same, differ.  But I suppose that is ignoring the reality
>> of human nature and the desire to do what one wants, free
>> of critisism.
>>
> Possibly the key phrase there is "well argued". I didn't see any
> arguments, just a list of wishes. None of which I particularly
> empathise with in relation to F15. (I've have my problems with F15,
> but none of those.) As others have said the last two:
> * Give us back the assurance of never having to reboot.
This is a silly requirement.  There are always reasons to reboot.  What 
you mean, from what I gather, is don't make me reboot unless it is 
absolutely necessary (major kernel upgrade type stuff...)
>
> * Give us back the legendary reliability that was the hallmark of
> Linux and Fedora.
Who are you kidding here.  Fedora != reliability.  RedHat === 
reliability (I work with RH 5.6/RH 6 servers and they HAVE to be reliable.)
>
> Are simply misleading anyway.
>
>> If complaints were less suppressed here, maybe the situation
>> could even be turned into a positive...Fedora could perhaps
> Constructive criticism and suggestions are far more useful than just
> enumerating grievances.
Amen said the choir.  Bellyaching about something you cannot change is 
not going to change it and might just dig the heels in of the developers 
more.  I've been of that ilk for YEARS.  If you have something to say, 
say it, but coat it with HONEY.  Remember, the song in Mary Poppins "A 
Spoon Full of Sugar Make the Medicine Go Down"?  That is what we should 
be doing.  Something like this:
'Hey Gnome devs:  I know that you are trying to attract new Linux users 
by giving them an easy to use, hard to mess up interface in Gnome3.  
Good work and I think you've made great strides in that direction.  
However, in the process, you have made things more difficult for me, the 
experienced Gnome user.  Can you help me out by keeping Gnome2 alive 
until I learn all the tweaks and tricks for Gnome3?  That would be 
really nice on your part and it would give me a fall-back position in 
case something goes horribly wrong with my use of Gnome3."


> Many of the items originally listed were bugs,
> but I don't see bugzilla ids next to them. In any case, this complaint
> is hardly suppressed, it's been posted to everyone on the users list,
> is in the archive, will sit in my email account till I finally run out
> of server space and has generated about a dozen responses.
I'll agree here as well.  Bugzilla is YOUR FRIEND.  If they do nothing 
else than mark the bug 'Invalid' at least you told them in their forum 
that something is not right.  Do expect to see the following:
Worksasdesigned.  Yep, that's the direction the developers are moving 
and you are not going to change their minds.
INVALID.  Same as above, or there is no bug.
WORKSFORME.  You are just going to have to figure out what the 
developers wanted to do here or ask for help from them (or someone else 
who figured it out.)

I like the idea of a 'Survived Fedora 15' tee shirt.  Add that to the 
collection of miscues and broken software that I've worked with over 
thirty years.  What is happening here, happens to most folks who fiddle 
with 'bleeding edge' software.  Sometimes the edge is a little too 
'sharp' and we get 'cut'.  However, what we find will help the overall 
project and RedHat and the Linux community in general.

James

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Re: Virtualization

[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

[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

[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

-- 

==
"Only two things are infinite,
the universe and human stupidity,
and I'm not sure about the former."

-- Albert Einstein




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Re: NFS shared directory permission (rhel6)

[Tom H]

On Tue, Aug 2, 2011 at 3:57 PM, Steve Searle  wrote:
> Around 05:51pm on Tuesday, August 02, 2011 (UK time), Tom H scrawled:
>> On Mon, Aug 1, 2011 at 8:57 AM, Steve Searle  wrote:
>> >
>> > I know. If you read my website it says that the firewall can cause a
>> > file to be read-only.
>>
>> Which firewall settings cause NFS exports to be ro?
>
> I already pointed to the webpage. Its here:
> http://www.stevesearle.com/tech/faq.html#nfs0010
>
> I'm not going to rewrite it in an email

Where on your page does it say: "to export an nfs share r/o, use the
following iptables rules?"
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Re: Virtualization

[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

[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

[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

-- 

==
"Only two things are infinite,
the universe and human stupidity,
and I'm not sure about the former."

-- Albert Einstein




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Re: Google Music: Unable to login from Linux

[Steven Stern]

On 08/02/2011 03:06 PM, Todd Zullinger wrote:
> Steven Stern wrote:
>> FYI, in case you've tried the Google Music Uploader
> 
> FWIW, if you want a hackish workaround to the problem:
> 
> mkdir -p /etc/ssl/certs && \
> ln -sv /etc/pki/tls/certs/ca-bundle.crt \
> /etc/ssl/certs/ca-certificates.crt
> 
> They must have hard-coded that path, which is incorrect for Fedora.
> 
> 
> 
> 
Doesn't work for me.  It still tells my my account is invalid.

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Re: hsqldb missing hsqldb.jar

[Rahul Sundaram]

On 08/01/2011 12:59 PM, Javier Perez wrote:
> Hi
>
> I just upgrade my machine to FC15 from FC14.
>
> Hsqldb is not working properly.
> /var/lib/hsqldb/lib/hsqldb.jar links to a non existing link
> [root@pepewin lib]# ls -al /var/lib/hsqldb/lib/hsqldb.jar
> lrwxrwxrwx 1 root root 10 Aug  1 02:19 /var/lib/hsqldb/lib/hsqldb.jar
> -> hsqldb.jar

File a bug report

Rahul
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Re: Google Music: Unable to login from Linux

[Todd Zullinger]

Steven Stern wrote:
> FYI, in case you've tried the Google Music Uploader

FWIW, if you want a hackish workaround to the problem:

mkdir -p /etc/ssl/certs && \
ln -sv /etc/pki/tls/certs/ca-bundle.crt \
/etc/ssl/certs/ca-certificates.crt

They must have hard-coded that path, which is incorrect for Fedora.

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~~
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it.
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Virtualization

[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: NFS shared directory permission (rhel6)

[Steve Searle]

Around 05:51pm on Tuesday, August 02, 2011 (UK time), Tom H scrawled:

> On Mon, Aug 1, 2011 at 8:57 AM, Steve Searle  wrote:
> >
> > I know. If you read my website it says that the firewall can cause a
> > file to be read-only.
> 
> Which firewall settings cause NFS exports to be ro?

I already pointed to the webpage. Its here:
http://www.stevesearle.com/tech/faq.html#nfs0010

I'm not going to rewrite it in an email

Steve

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 20:55:28 up 1 day, 12:15,  1 user,  load average: 0.00, 0.02, 0.00


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Google Music: Unable to login from Linux

[Steven Stern]

FYI, in case you've tried the Google Music Uploader


 Original Message 
Subject:Re: [#843029969] Unable to login from Linux
Date:   Mon, 01 Aug 2011 20:45:15 -
From:   Music Beta Support 
To: Steven D. Stern 



Hi,

We're aware of an issue with Fedora 15 and are working on a fix. 

Thanks for providing this information.

Regards,
Anna
The Music Beta Team



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Re: NFS shared directory permission (rhel6)

[夜神 岩男]

On 08/03/2011 02:05 AM, Tom H wrote:

> NFSv4 works without Kerberos or LDAP/NIS/NIS+.

Of course it does, but can the permissions be exported per user by 
UID/GID mask or are the exports still blanket ro/rw (which is the real 
point of this thread)? Further, can you escape from the nfs_mount_t 
context and give native SELinux contexts to the export on the client 
side with this setup?

(That would be really cooking from one perspective, but also pretty 
insecure without authentication -- which is why I had always been under 
the impression that this was specifically forbidden.)

> The username and idmapd domain have to match (perhaps the UID too but
> I've never tried different UIDs as you suggest above and the
> description of idmapd does say that the ID is sent as
> username@domain).

That would be neat.

Can you direct me to a sample idmapd configuration that achieves this: 
rpc.idmapd + hostname-declared domains that are common (does DNS need to 
be enabled for this?) + /etc/passwd and /etc/group files + NFSv4 UIDs 
and GIDs accurately mapped for permissions across exports (not just ro 
or blanket rw).

It could fill in some holes and perhaps I've just never been able to 
find the right way to make idmapd domains stick with SELinux enabled 
without using some form of authentication. Is sssd or nslcd or nscd 
required somewhere in there, or do these just satisfy Kerberos requirements?

If I can get a configuration like this working it would help the OP in 
the short run, and provide more insight for the tutorial I want to write.

-Iwao
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Re: NFS shared directory permission (rhel6)

[Tom H]

2011/8/1 夜神　岩男 :


> You can achieve the same user and group permissions on the clients as on
> the server, but you have to create the users and groups on the server
> side to get this and you must use some form of authentication across the
> network. The server exports the user names and group names, not the
> numbers, so a translation must occur within rpc.idmapd as well. Its not
> as hard as it sounds -- most of it "just works" once you set up
> authentication.
>
> This can happen through the /etc/passwd and /etc/groups files, using
> them as a local directory (which is easy, because this is already the
> default -- in a directory-enabled environment this is easier to maintain
> over the long run, though).
>
> Create the users and groups on the server that exist on your clients.
> Don't worry about the UID and GID numbers matching, they don't need to.
> Make sure the user and group names are the same, though.
>
> Then make sure that you do:
> setsebool -P nfs_export_all_ro=0
> setsebool -P nfs_export_all_rw=1
>
> and that in your /etc/exports you have the correct permissions declared
> for the export. It is also easier to manage a lot of shares if you are
> using the fsid=0 style export directory trees, though I don't think this
> is strictly necessary.
>
> And, critically... you must pick an authentication mechanism that
> rpc.idmapd likes.
>
> The easiest one is Kerberos, and its really not that difficult to set
> up. Once a Kerberos ticket exists for authentication, then the NFS
> server will believe that you're really u...@example.com and that the
> system you're on is really host/client.example@example.com with a
> valid credential to use nfs/client.example@example.com at
> nfs/server.example@example.com and pass UID/GID information to the
> client.
>
> You don't really *need* directory services like LDAP or NIS, but without
> using authentication I don't think there is a way to get NFSv4 to pass
> UID/GID information.

NFSv4 works without Kerberos or LDAP/NIS/NIS+.

The username and idmapd domain have to match (perhaps the UID too but
I've never tried different UIDs as you suggest above and the
description of idmapd does say that the ID is sent as
username@domain).
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Re: NFS shared directory permission (rhel6)

[Tom H]

On Mon, Aug 1, 2011 at 8:57 AM, Steve Searle  wrote:
>
> I know. If you read my website it says that the firewall can cause a
> file to be read-only.

Which firewall settings cause NFS exports to be ro?
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Re: NFS shared directory permission (rhel6)

[Ian Malone]

2011/8/1 夜神　岩男 :
> On 08/01/2011 10:25 PM, Jatin K wrote:
>> On Monday 01 August 2011 06:41 PM, 夜神　岩男 wrote:
>>> On 08/01/2011 09:59 PM, Robert Marcano wrote:
 On 08/01/2011 08:03 AM, 夜神　岩男 wrote:
 ...

> NFSv4 has become both more awesome and more complex.
> Before getting into specific issues that can cause this...
>
 If you intend to use POSIX ACLs with NFSv4 forget about it, because user
 umask is always applied at the client side over the default POSIX ACLs
 making difficult to have for example rw directory/files for some group
 of users.
>>> That is part of what I am trying to discover by asking him for the
>>> output I wrote and more about the authentication/authorization situation
>>> on the network. There are a large number of reasons permissions can get
>>> kajiggered over the network with NFSv4 or AFS, and in an office
>>> environment doubly so because of the prevalence of LDAP, NIS and
>>> Kerberos deployments, along with SELinux fun tossed in.
>>>
>>> -Iwao
>>
>> no there is no LDAP or NIS like stuff
>>
>> I'm thinking to use ACL on that directory based on the user groups ( in
>> my scenario it will be office user groups )
>
> You can achieve the same user and group permissions on the clients as on
> the server, but you have to create the users and groups on the server
> side to get this and you must use some form of authentication across the
> network. The server exports the user names and group names, not the
> numbers, so a translation must occur within rpc.idmapd as well. Its not
> as hard as it sounds -- most of it "just works" once you set up
> authentication.
>
> This can happen through the /etc/passwd and /etc/groups files, using
> them as a local directory (which is easy, because this is already the
> default -- in a directory-enabled environment this is easier to maintain
> over the long run, though).
>
> Create the users and groups on the server that exist on your clients.
> Don't worry about the UID and GID numbers matching, they don't need to.
> Make sure the user and group names are the same, though.
>
> Then make sure that you do:
> setsebool -P nfs_export_all_ro=0
> setsebool -P nfs_export_all_rw=1
>
> and that in your /etc/exports you have the correct permissions declared
> for the export. It is also easier to manage a lot of shares if you are
> using the fsid=0 style export directory trees, though I don't think this
> is strictly necessary.
>
> And, critically... you must pick an authentication mechanism that
> rpc.idmapd likes.
>
> The easiest one is Kerberos, and its really not that difficult to set
> up. Once a Kerberos ticket exists for authentication, then the NFS
> server will believe that you're really u...@example.com and that the
> system you're on is really host/client.example@example.com with a
> valid credential to use nfs/client.example@example.com at
> nfs/server.example@example.com and pass UID/GID information to the
> client.
>
> You don't really *need* directory services like LDAP or NIS, but without
> using authentication I don't think there is a way to get NFSv4 to pass
> UID/GID information. The reason is that passing this data leaves it up
> to the client to decide how to handle security, and that is not secure
> at all.
>
> For example, if you had "192.168.0.0/24(rw)" in your /etc/exports then
> anyone who gets into your wireless could just declare UIDs and GIDs and
> do whatever they wanted with your data (from a security perspective it
> is the same thing as exporting mod 777 shares). By requiring
> authentication this problem goes away, and by removing anonymous
> authentication as an option the temptation to screw yourself also goes
> away. In other words if you're exporting mod 777 you have to explicitely
> set things up that way with NFSv4, and this is a Good Thing.
>
> There are a lot of threads out there by people who don't understand how
> authenticated NFSv4 works, most of them ranting about how "stupid"
> idmapd, Kerberos, LDAP, or nsswitch is -- or they are just threads where
> people declare, en masse, that "permissions over NFSv4 just can't
> happen" in a despairing tone. But again, these people don't understand
> how the system functions very well.
>
> I have really been meaning to collect my notes about small/medium office
> Kerberos/LDAP/NFSv4 setup and write a small series on how to do this
> without giving up, settling for less (ie. logically unauthenticated
> Samba or using just LDAP as if it were actually an authentication
> service and a directory), or jumping off of a bridge.
>
> If you run into bad spots, keep asking. If I actually write a how-to
> about this I'll send you a link. Beware that most of the how-tos out
> there are pretty out of date, don't take SELinux into account or make
> other assumptions that don't line up with RPM-based systems (or do
> boneheaded things like say "Step 1, turn off SELinux").
>

Thanks for posting that, very handy and I know how long these thin

Re: Rdesktop - Machine hanging problem

[Robert Marcano]

On 08/02/2011 12:28 AM, Rajender.M wrote:
>
>> On 08/01/2011 06:44 AM, 夜神　岩男 wrote:
>>
>>> On 08/01/2011 08:02 PM, Rajender.M wrote:
>>>
 Hello All,

 I installed Fedora core15 in our host machine which contains the rdesktop 
 version1.6.0
 When i try to connect to the remote machine using rdesktop the machine 
 hangs and we need to do a hard reboot every time. We tried to install the 
 same version in another machine and same thing happened in that machine 
 too.
 Since rdesktop is a normal user space application; such "cannot" hang the 
 machine. So most likely the problem is with the Fedora15 os as with the 
 Xorg server or may be any other reason.
 I dint find any body reporting the same problem in the web and i need to 
 resolve this issue. So please can any one help me in this regard.

>>> Try the same thing on a different window manager (as in not Gnome3,
>>> which I suspect is what you were using at the time) and see if you get
>>> the same results.
>>>
>> I run Gonme3 and rdesktop and have had problems.  In my
>> case they are intermittent -- most of the time rdesktop
>> connects and works fine.   But on several occasions in period
>> of a couple months, the gnome3 desktop has locked up or
>> gone into a weird state where I could change window focus
>> with the mouse, but windows would not respond to any mouse
>> or keyboard input.
>>
>> In one case all keyboard input was dead, in another I was
>> able to cntl-alt-F4 to a command line console to kill Gnome-
>> session.  In yet another I was able to log into the Windows
>> machine directly, taking the session back from rdesktop,
>> which caused Gnome3 to come back to life.
>>
>> I agree there seems to be a problem with rdesktop and Gnome3
>> but because of its intermittent nature here, I have not been
>> able to develop enough info for a useful bug report.
>>
> This is nothing to do with gnome3/window manager. We did test with plain
> X and got the same system freeze. This is something to do with the low
> level xlib calls (Xorg or video driver/kernel ). We also tested running
> rdesktop from a different machine setting the DISPLAY to the machine in
> problem, we faced the same issue. So this confirms the problem is with
> the X.
>
> Raj

I can confirm this behavior without rdesktop, yesterday I was running a 
remote application (ssh X11 forwarding) over an extremely slow link, and 
the local desktop was a lot unresponsive, switching local running 
windows is extremely slow, only when the remote link was able to cope 
with the data being forwarded is that everything starts to run with 
decent speeds locally
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Re: Rdesktop - Machine hanging problem

[夜神 岩男]

On 08/02/2011 01:58 PM, Rajender.M wrote:
>
>> On 08/01/2011 06:44 AM, 夜神　岩男 wrote:
>>
>>> On 08/01/2011 08:02 PM, Rajender.M wrote:
>>>
 Hello All,

 I installed Fedora core15 in our host machine which contains the rdesktop 
 version1.6.0
 When i try to connect to the remote machine using rdesktop the machine 
 hangs and we need to do a hard reboot every time. We tried to install the 
 same version in another machine and same thing happened in that machine 
 too.
 Since rdesktop is a normal user space application; such "cannot" hang the 
 machine. So most likely the problem is with the Fedora15 os as with the 
 Xorg server or may be any other reason.
 I dint find any body reporting the same problem in the web and i need to 
 resolve this issue. So please can any one help me in this regard.

>>> Try the same thing on a different window manager (as in not Gnome3,
>>> which I suspect is what you were using at the time) and see if you get
>>> the same results.
>>>
>> I run Gonme3 and rdesktop and have had problems.  In my
>> case they are intermittent -- most of the time rdesktop
>> connects and works fine.   But on several occasions in period
>> of a couple months, the gnome3 desktop has locked up or
>> gone into a weird state where I could change window focus
>> with the mouse, but windows would not respond to any mouse
>> or keyboard input.
>>
>> In one case all keyboard input was dead, in another I was
>> able to cntl-alt-F4 to a command line console to kill Gnome-
>> session.  In yet another I was able to log into the Windows
>> machine directly, taking the session back from rdesktop,
>> which caused Gnome3 to come back to life.
>>
>> I agree there seems to be a problem with rdesktop and Gnome3
>> but because of its intermittent nature here, I have not been
>> able to develop enough info for a useful bug report.
>>
> This is nothing to do with gnome3/window manager. We did test with plain
> X and got the same system freeze. This is something to do with the low
> level xlib calls (Xorg or video driver/kernel ). We also tested running
> rdesktop from a different machine setting the DISPLAY to the machine in
> problem, we faced the same issue. So this confirms the problem is with
> the X.
>
> Raj

Have you tried to see if a remote shell is still responsive or if you 
can still ping the machine? Knowing if the kernel is really locking up 
or if X or networking or socket handling is seizing is pretty important 
if you want this fixed.

-Iwao
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Re: NFS shared directory permission (rhel6)

[夜神 岩男]

On 08/02/2011 01:09 AM, Mike Wright wrote:
> On 08/01/2011 07:41 AM, 夜神　岩男 wrote:
>> I have really been meaning to collect my notes about small/medium office
>> Kerberos/LDAP/NFSv4 setup and write a small series on how to do this
>> without giving up, settling for less (ie. logically unauthenticated
>> Samba or using just LDAP as if it were actually an authentication
>> service and a directory), or jumping off of a bridge.
>>
>> If you run into bad spots, keep asking. If I actually write a how-to
>> about this I'll send you a link. Beware that most of the how-tos out
>> there are pretty out of date, don't take SELinux into account or make
>> other assumptions that don't line up with RPM-based systems (or do
>> boneheaded things like say "Step 1, turn off SELinux").
>>
>
> Thanks for your efforts, Iwao.
>
> Sign me up, too. A link would be *great*.
>
> One of my biggest plaints is that much of the documentation out there
> lacks date and/or version info.
>
> Now that I've got Xen up and going and have more than a few virtual
> machines running it's becoming difficult/awkward to keep track of
> users/passwords, dealing with uid/gid being different for the same users
> on different machines, and especially nfs. Some vms will happily mount
> from one nfs server while others to the same server give me errors, all
> with the same version of the same o/s.

Great need plants great seed, doesn't it? (Whoa! That sort of sounds 
like old wisdom! English is fun!)

> (Unfortunately, in order to debug my setup I've resorted to "Step 1",
> which sometimes helps and other times not so much.)

I supposed Step 2 should always be set to "revert Step 1"!

I will put my notes together and make a series out of it -- looking 
around the web and in books this sort of thing really *doesn't* seem to 
be documented well and stumps a huge number of people who just give up 
and assume that good Linux setups are just too hard to bother with. This 
is because:

1. The cn=config style of OpenLDAP is undocumented and very confusing 
for newcomers

(Initial setup for the first time reliably produces feelings between 
simmering-rage-type frustration or the breaking-things-in-the-office 
point. Some things the OpenLDAP manual should have in it under 
configuration just aren't there, and it makes the manual *feel* 
inaccurate though it doesn't actually state anything that is wrong... 
which is worse, because it makes it believable *and* wrong instead of 
clearly, igorably wrong...)

2. Kerberos seems scary at first and though quite simple to understand 
after playing with it a bit, the documentation goes to such length to 
"make a hard subject easy" that the reader defaults to the assumption 
that it *is* hard -- which is not as true as it may feel.

(...and the part when you decide that you're actually going to switch 
authentication over is a little nerve-wracking so some admins just don't 
go through with it -- its like the first time you decided to actually 
turn SSH password authentication off on a really remote system, but 
multiplied by however many systems your servicing raised to the power of 
however much your contract is worth)

3. Our users have been trained to expect such shit tech from whatever 
contact they had with bad Windows administration in the past that we can 
get away with being lazy and not doing things correctly. ("Put it on the 
shared drive" comes to mind...)

(The Post-Windows Crutch -- where we continue to not let users 
experience seamless networking to the natural degree, where they don't 
even realize what terminal they are using because everything is the same 
from every station -- because its all the same system if things are 
working the way they were originally designed)

4. The interactions between the little team of necessary daemons is so 
scantily explained that most admins that get to the point of an actually 
complete configuration fail because unthought-of-yet-critical daemons 
aren't started. Two of the biggest culprits on Fedora are nscd and nslcd.

(The last sentence above is today's hint -- discovered after seeing what 
would happen if a working SL6 setup was pushed directly to a Fedora 14 
system. nscd, nslcd weren't even installed with the dependencies for the 
setup, and sssd was present in the system but no scripts that require it 
(like authconfig-tui) called "chkconfig sssd on" for some reason... Of 
course none of these problems produced remotely accurate error messages 
any place that the uninitiated would think to look (or at all)...)

5. CA and signed-certificate creation is a fun subject full of myth and 
wildly inaccurate or out of date tutorials (or tutorials specific to, 
say, FreeBSD or Darwin/OSX, but don't clearly state that). Its confusing 
and ill-treated enough that some people give up and just shell out money 
for them, even if the certification is strictly internal.

6. NFSv4 and OpenAFS are great tools, but suffer from a lack of accurate 
documentation in a similar way to t

Re: F15 update - dependency resolution error

[Patrick Lists]

On 08/02/2011 10:26 AM, Michael Schwendt wrote:
> On Tue, 2 Aug 2011 08:05:41 + (UTC), J (JB) wrote:
>
>> YumEx update run aborted.
>>
>> Dependency Resolution Errors:
>>
>> Package: createrepo-0.9.9-4.fc15.noarch (updates)
>>  Requires: yum>= 3.2.29-8
>>  Installed: yum-3.2.29-7.fc15.noarch (@updates)
>>  yum = 3.2.29-7.fc15
>>  Available: yum-3.2.29-4.fc15.noarch (fedora)
>>  yum = 3.2.29-4.fc15
>>
>> JB
>
> Do look into becoming familiar with the Fedora Updates System web pages:
> https://admin.fedoraproject.org/updates
>
> There is a newer "yum" package in updates-testing already:
> https://admin.fedoraproject.org/updates/yum-3.2.29-8.fc15
>
> That the missing dep has not been detected prior to release of
> createrepo could be a bug in AutoQA's depchecker or just a side-effect
> of pushing createrepo and yum in separate tickets.

I came across this last night and filed it:
https://bugzilla.redhat.com/show_bug.cgi?id=727551

Would be nice if errors like this were prevented automagically...

Regards,
Patrick
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Re: Vmware Workstation won't compile

[Reindl Harald]

Am 02.08.2011 12:42, schrieb Mark C. Allman:
> On Mon, 2011-08-01 at 13:42 +0200, Reindl Harald wrote:
>>
>> Am 01.08.2011 13:39, schrieb Paul Smith:
>>> On Mon, Aug 1, 2011 at 12:26 PM, Lawrence E Graves
>>>  wrote:
 I updated to the new kernel 40-4 and now my vmware workstation will not
 compile. I believe there is a missing program. Please check.
>>>
>>> Consider instead to use VirtualBox:
>>>
>>> http://www.virtualbox.org/
>>>
>>> There is a repo for Fedora, so you can install it with yum. It works great!
>>
>> you can never compare vbox and VMware, really you can not!
>> VMware-Images can be used/converted everywehre up to ESXi/vCenter
>>
>> http://weltall.heliohost.org/wordpress/2011/05/14/running-vmware-workstation-player-on-linux-2-6-39-updated/
>> http://weltall.heliohost.org/wordpress/wp-content/uploads/2011/05/vmware2.6.39patchv3.tar.bz2
>>
> 
> I installed 2.6.40-4.fc15.x86_64 and tried to build VMware.  I ran into
> this error almost at once:
> 
>   CC [M]  /tmp/vmware-root/modules/vmmon-only/linux/driver.o
> /tmp/vmware-root/modules/vmmon-only/linux/driver.c:783:59: error:
> ‘SPIN_LOCK_UNLOCKED’ undeclared here (not in a function)
> 
> 
> It's caused by the following being removed from the file
> source/include/linux/spinlock_types.h:
> 
> /*
>  * SPIN_LOCK_UNLOCKED defeats lockdep state tracking and is hence
>  * deprecated.
>  * Please use DEFINE_SPINLOCK() or __SPIN_LOCK_UNLOCKED() as
>  * appropriate.
>  */
> #define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
> 
> Looks like a patch to the VMware source code should fix this issue. I
> can experiment with this if I can find the time.  There may be more
> "issues," however.

you qouted the URLs for a working patch from my post!

i have run VMware Workstation on 2.6.40 since sunday with
2 headless running server virtual machines which both do
hughe backup-jobs via cron and all is running fine

Host: Fedora 15 x86_64: Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz
Guests: F14 x86_64 and F15 x86_64 both with two networks (nat + bridge)

On my workstation Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
it does the job also as well with WinXP as long in grub.conf
"nmi_watchdog=0" is added to the kernel-params, but this
has nothing to do with 2.6.40 is is since upgrade to F15





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Re: Vmware Workstation won't compile

[Christopher A. Williams]

On Tue, 2011-08-02 at 06:42 -0400, Mark C. Allman wrote: 
> On Mon, 2011-08-01 at 13:42 +0200, Reindl Harald wrote:
> > 
> > Am 01.08.2011 13:39, schrieb Paul Smith:
> > > On Mon, Aug 1, 2011 at 12:26 PM, Lawrence E Graves
> > >  wrote:
> > >> I updated to the new kernel 40-4 and now my vmware workstation will not
> > >> compile. I believe there is a missing program. Please check.
> > > 
> > > Consider instead to use VirtualBox:
> > > 
> > > http://www.virtualbox.org/
> > > 
> > > There is a repo for Fedora, so you can install it with yum. It works 
> > > great!
> > 
> > you can never compare vbox and VMware, really you can not!
> > VMware-Images can be used/converted everywehre up to ESXi/vCenter
> > 
> > http://weltall.heliohost.org/wordpress/2011/05/14/running-vmware-workstation-player-on-linux-2-6-39-updated/
> > http://weltall.heliohost.org/wordpress/wp-content/uploads/2011/05/vmware2.6.39patchv3.tar.bz2
> > 
> 
> I installed 2.6.40-4.fc15.x86_64 and tried to build VMware.  I ran into
> this error almost at once:
> 
>   CC [M]  /tmp/vmware-root/modules/vmmon-only/linux/driver.o
> /tmp/vmware-root/modules/vmmon-only/linux/driver.c:783:59: error:
> ‘SPIN_LOCK_UNLOCKED’ undeclared here (not in a function)
> 
> 
> It's caused by the following being removed from the file
> source/include/linux/spinlock_types.h:
> 
> /*
>  * SPIN_LOCK_UNLOCKED defeats lockdep state tracking and is hence
>  * deprecated.
>  * Please use DEFINE_SPINLOCK() or __SPIN_LOCK_UNLOCKED() as
>  * appropriate.
>  */
> #define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
> 
> Looks like a patch to the VMware source code should fix this issue. I
> can experiment with this if I can find the time.  There may be more
> "issues," however.
> 

Nice find! I would suggest that we send this information to VMware
Support. Since Fedora is now considered a supported Linux distribution
for VMware Workstation (and vSphere as well), this should definitely be
of interest to them.

I can check with my VMware contacts to see where this should go to get
the quickest visibility and response.

Cheers,

Chris Williams
(VCAP4-DCD, VCAP4-DCA)

-- 

==
"Only two things are infinite,
the universe and human stupidity,
and I'm not sure about the former."

-- Albert Einstein




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Re: which process display a given window?

[Bryn M. Reeves]

On 08/01/2011 11:39 AM, Frantisek Hanzlik wrote:
> How generally I can state which process display it?
> I would expect, when right-clicking on window top title bar, some
> item as e.g. "window properties" - where would be possible find info
> about process displaying this window. But there isn't nothing of the
> kind. Thus, is there other way discovering this?
> 
> I forgot mention, I'm now in F15 using XFCE (but IMO in Gnome window
> manager has not capability too).

In f15 the gnome and xfce window managers both seem to set a window manager hint
that includes the process ID so you can probably get this by running xwininfo
and clicking the suspect window:

$ xwininfo -wm

xwininfo: Please select the window about which you
  would like information by clicking the
  mouse in that window.

xwininfo: Window id: 0x225 "bmr@bmr:~"

  Window manager hints:
  Client accepts input or input focus: Yes
  Initial state is Normal State
  Displayed on desktop 0
  Window type:
  Normal
  Process id: 2157 on host bmr.fab.redhat.com
  Frame extents: 1, 1, 28, 2

$ pga 2157
 2157 ?Sl 0:05 gnome-terminal
24640 pts/0S+ 0:00 grep --color=auto 2157

Regards,
Bryn.
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Re: which process display a given window?

[Patrick O'Callaghan]

On Mon, 2011-08-01 at 12:39 +0200, Frantisek Hanzlik wrote:
> How generally I can state which process display it?
> I would expect, when right-clicking on window top title bar, some
> item as e.g. "window properties" - where would be possible find info
> about process displaying this window. But there isn't nothing of the
> kind. Thus, is there other way discovering this? 

The process displaying the window is actually the X server, acting on
behalf of some client which may not even be local to your machine, but
you might be able to get some clues using xprop and xwininfo.

poc

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Re: What happend to aes586?

[Bryn M. Reeves]

On 08/02/2011 02:49 AM, James Matthews wrote:
> You can find it here
> 
> http://www.opensource.apple.com/source/OpenSSL098/OpenSSL098-35/src/crypto/aes/asm/aes-586.pl
> 
> It has it's asm inline but be wary of any encryption algo and always confirm 
> that it is the right thing (by comparing the bytes of other implementations.

Similar name but that's not the same thing - this is part of the OpenSSL 
project.

The module Clemens was asking about is a kernel module that provides
arch-specific acceleration for the in-kernel crypto API.

> On Sun, Jul 31, 2011 at 6:25 PM, Clemens Eisserer  A few times AES586 is mentioned beeing a hand optimized assembler version 
> of
> the generic AES module, but I wasn't able to find it. Is it not part of 
> the
> Fedora15 default kernel, or has it been removed from vanilla as well?

It was there as a module in the f15 GA i686 kernel package:

$ rpm -qlp /tmp/kernel-2.6.38.6-26.rc1.fc15.i686.rpm|grep aes-i586
/lib/modules/2.6.38.6-26.rc1.fc15.i686/kernel/arch/x86/crypto/aes-i586.ko

But the equivalent on x86_64 was a built-in:

$ grep AES_X86_64 /boot/config-2.6.38.8-35.fc15.x86_64
CONFIG_CRYPTO_AES_X86_64=y

This was changed in an f15 update:

* Wed Jun 15 2011 Kyle McMartin 
- Build in aesni-intel on i686 for symmetry with 64-bit.

So the functionality is still there, it's just not built as a module any more.

Regards,
Bryn.
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Re: Vmware Workstation won't compile

[Mark C. Allman]

On Mon, 2011-08-01 at 13:42 +0200, Reindl Harald wrote:
> 
> Am 01.08.2011 13:39, schrieb Paul Smith:
> > On Mon, Aug 1, 2011 at 12:26 PM, Lawrence E Graves
> >  wrote:
> >> I updated to the new kernel 40-4 and now my vmware workstation will not
> >> compile. I believe there is a missing program. Please check.
> > 
> > Consider instead to use VirtualBox:
> > 
> > http://www.virtualbox.org/
> > 
> > There is a repo for Fedora, so you can install it with yum. It works great!
> 
> you can never compare vbox and VMware, really you can not!
> VMware-Images can be used/converted everywehre up to ESXi/vCenter
> 
> http://weltall.heliohost.org/wordpress/2011/05/14/running-vmware-workstation-player-on-linux-2-6-39-updated/
> http://weltall.heliohost.org/wordpress/wp-content/uploads/2011/05/vmware2.6.39patchv3.tar.bz2
> 

I installed 2.6.40-4.fc15.x86_64 and tried to build VMware.  I ran into
this error almost at once:

  CC [M]  /tmp/vmware-root/modules/vmmon-only/linux/driver.o
/tmp/vmware-root/modules/vmmon-only/linux/driver.c:783:59: error:
‘SPIN_LOCK_UNLOCKED’ undeclared here (not in a function)


It's caused by the following being removed from the file
source/include/linux/spinlock_types.h:

/*
 * SPIN_LOCK_UNLOCKED defeats lockdep state tracking and is hence
 * deprecated.
 * Please use DEFINE_SPINLOCK() or __SPIN_LOCK_UNLOCKED() as
 * appropriate.
 */
#define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)

Looks like a patch to the VMware source code should fix this issue. I
can experiment with this if I can find the time.  There may be more
"issues," however.

-- 
Mark C. Allman, PMP, CSM
Allman Professional Consulting, Inc.
First Vice-President, Ocean State PMI
www.allmanpc.com, 617-947-4263

 

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Re: F15 update - dependency resolution error

[Michael Schwendt]

On Tue, 2 Aug 2011 08:05:41 + (UTC), J (JB) wrote:

> YumEx update run aborted.
> 
> Dependency Resolution Errors:
> 
> Package: createrepo-0.9.9-4.fc15.noarch (updates)
> Requires: yum >= 3.2.29-8
> Installed: yum-3.2.29-7.fc15.noarch (@updates)
> yum = 3.2.29-7.fc15
> Available: yum-3.2.29-4.fc15.noarch (fedora)
> yum = 3.2.29-4.fc15
> 
> JB

Do look into becoming familiar with the Fedora Updates System web pages:
https://admin.fedoraproject.org/updates

There is a newer "yum" package in updates-testing already:
https://admin.fedoraproject.org/updates/yum-3.2.29-8.fc15

That the missing dep has not been detected prior to release of 
createrepo could be a bug in AutoQA's depchecker or just a side-effect
of pushing createrepo and yum in separate tickets.
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F15 update - dependency resolution error

[JB]

YumEx update run aborted.

Dependency Resolution Errors:

Package: createrepo-0.9.9-4.fc15.noarch (updates)
Requires: yum >= 3.2.29-8
Installed: yum-3.2.29-7.fc15.noarch (@updates)
yum = 3.2.29-7.fc15
Available: yum-3.2.29-4.fc15.noarch (fedora)
yum = 3.2.29-4.fc15

JB


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Re: which process display a given window?

[Tim]

On Mon, 2011-08-01 at 12:39 +0200, Frantisek Hanzlik wrote:
> A few moments ago on my F15 desktop appeared window with title
> "Authentication" and two user-fillable fields within, "Name" and
> "Password". Nothing else.
> At this moment I not expect from none of cca 15-20 running apps this
> question window, nor from several running applets (thus, probably
> some crackers want access to my credit cards ;)
>  
> How generally I can state which process display it?
> I would expect, when right-clicking on window top title bar, some
> item as e.g. "window properties" - where would be possible find info
> about process displaying this window. But there isn't nothing of the
> kind. Thus, is there other way discovering this?

Try the "top" command, and re-arrange the display order to show the most
recent processes at the top.  The dialog box may be near the top of the
list, and you can use that to work out where it came from.

But I'd be tempted to cancel the request, and see if it comes back
again, or if something else happens.

-- 
[tim@localhost ~]$ uname -r
2.6.27.25-78.2.56.fc9.i686

Don't send private replies to my address, the mailbox is ignored.  I
read messages from the public lists.



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