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trouble booting with FC6-64 [message #12510] Wed, 02 May 2007 01:27 Go to next message
Gregor Mosheh is currently offline  Gregor Mosheh
Messages: 62
Registered: April 2007
Member
Hi, all.

I wrote a few days ago, to the effect that the fellow setting up our
hardware was having trouble getting OpenVZ to work under FC6 on x86_64.
Using the same procedure, he can use FC6 32-bit without a hitch.

He's trying to boot into the OpenVZ kernel, and it's stopping. Iit gets as
far as "Input: AT Translated set 2 keyboard as /class/input/input0" which
is the keyboard loading. That should be followed immediately by the root
filesystem... but it's not. Just sits there.

He says that it doesn't panic, and that it's not frozen cuz a ctrl-alt-del
will reset the machine. Just gets to that point and stops. Any thoughts on
what could cause that or how we can try to get to the bottom of it? If
necessary, I can get a hardware list.

Again, it works A-OK under FC6 32-bit, which is what makes this so
mysterious.

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Re: trouble booting with FC6-64 [message #12530 is a reply to message #12510] Wed, 02 May 2007 08:49 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
Hello,

what OpenVZ kernel version do you use?
Have you compiled the kernel by your self or you have used a rpm
package?
What FC6 kernel version does boot smoothly?
Please, post /boot/grub/grub.conf file here.

Thanks,
Vasily

On Tue, 2007-05-01 at 19:27 -0600, Gregor Mosheh wrote:
> Hi, all.
>
> I wrote a few days ago, to the effect that the fellow setting up our
> hardware was having trouble getting OpenVZ to work under FC6 on x86_64.
> Using the same procedure, he can use FC6 32-bit without a hitch.
>
> He's trying to boot into the OpenVZ kernel, and it's stopping. Iit gets as
> far as "Input: AT Translated set 2 keyboard as /class/input/input0" which
> is the keyboard loading. That should be followed immediately by the root
> filesystem... but it's not. Just sits there.
>
> He says that it doesn't panic, and that it's not frozen cuz a ctrl-alt-del
> will reset the machine. Just gets to that point and stops. Any thoughts on
> what could cause that or how we can try to get to the bottom of it? If
> necessary, I can get a hardware list.
>
> Again, it works A-OK under FC6 32-bit, which is what makes this so
> mysterious.
>
Re: trouble booting with FC6-64 [message #12535 is a reply to message #12510] Wed, 02 May 2007 10:26 Go to previous messageGo to next message
dev is currently offline  dev
Messages: 1693
Registered: September 2005
Location: Moscow
Senior Member

You may need to press Alt-SysRq-P and Alt-SysRq-T and collect the output.
this will dump the required info about whether kernel hangs.

Thanks,
Kirill

Gregor Mosheh wrote:
> Hi, all.
>
> I wrote a few days ago, to the effect that the fellow setting up our
> hardware was having trouble getting OpenVZ to work under FC6 on x86_64.
> Using the same procedure, he can use FC6 32-bit without a hitch.
>
> He's trying to boot into the OpenVZ kernel, and it's stopping. Iit gets as
> far as "Input: AT Translated set 2 keyboard as /class/input/input0" which
> is the keyboard loading. That should be followed immediately by the root
> filesystem... but it's not. Just sits there.
>
> He says that it doesn't panic, and that it's not frozen cuz a ctrl-alt-del
> will reset the machine. Just gets to that point and stops. Any thoughts on
> what could cause that or how we can try to get to the bottom of it? If
> necessary, I can get a hardware list.
>
> Again, it works A-OK under FC6 32-bit, which is what makes this so
> mysterious.
>
Re: trouble booting with FC6-64 [message #12554 is a reply to message #12530] Wed, 02 May 2007 15:04 Go to previous messageGo to next message
Gregor Mosheh is currently offline  Gregor Mosheh
Messages: 62
Registered: April 2007
Member
The latest:
During his experiments last night with CentOS, he installed the kernel and
it actually frooze during boot. He then manually downloaded and installed
the SMP kernel, and it worked A-OK. So, we're wondering whether "'yum
install ovzkernel" was installing an inappropriate kernel for a 8-CPU
machine.

Kirill Korotaev wrote:
> You may need to press Alt-SysRq-P and Alt-SysRq-T and collect the output.
> this will dump the required info about whether kernel hangs.

I'll let him know. Since I always work on remote systems, I've never even
gotten to use the magic key!


Vasily Tarasov wrote:
> what OpenVZ kernel version do you use?
> Have you compiled the kernel by your self or you have used a rpm
> package?
> What FC6 kernel version does boot smoothly?

I wrote up the install procedure for 32-bit systems, but now he's trying
it on a 64-bit system, so...

The troublesome one is the RPM, installed via "yum install ovzkernel"
under FC6-64 Doing this same thing on 32-bit works perfectly.
Re: trouble booting with FC6-64 [message #12575 is a reply to message #12554] Thu, 03 May 2007 08:59 Go to previous messageGo to next message
kir is currently offline  kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia
Senior Member

Gregor Mosheh wrote:
> The latest:
> During his experiments last night with CentOS, he installed the kernel and
> it actually frooze during boot. He then manually downloaded and installed
> the SMP kernel, and it worked A-OK. So, we're wondering whether "'yum
> install ovzkernel" was installing an inappropriate kernel for a 8-CPU
> machine.
>
Yum doesn't know anything special about the kernels (aside from the fact
they should be installed, not upgraded; also some yum setups care to
deinstall very old kernel packages). So it's up to the user to decide
which kernel to use. I have just checked installation instructions on
wiki ( http://wiki.openvz.org/Quick_installation#Kernel_installatio n) and
they clearly tell a user to select the proper kernel, see:


Using yum

Run the following command

# yum install ovzkernel[-flavor]

Here |[-flavor]| is optional, and can be |-smp| or |-enterprise|. Refer
to kernel flavors <http://wiki.openvz.org/Kernel_flavors> for more info.
Re: trouble booting with FC6-64 [message #12596 is a reply to message #12575] Thu, 03 May 2007 13:49 Go to previous message
Gregor Mosheh is currently offline  Gregor Mosheh
Messages: 62
Registered: April 2007
Member
Kir Kolyshkin wrote:
> Yum doesn't know anything special about the kernels
...
> So it's up to the user to decide which kernel to use.
...
> # yum install ovzkernel[-flavor]

Hey, I bet that's it. I bet he didn't specify "ovzkernel-smp"
Thanks for the tip, Kir.


--
HostGIS
Cartographic development and hosting services
707-822-9355
http://www.HostGIS.com/

"Remember that no one cares if you can back up, only if you can restore."
- AMANDA
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