Hi,
I just received a Supermicro server back from factory repair. Installed CentOS 6.3 x86_64 fresh from DVD (tried with 6.4, same result). Everything goes fine until i install Virtualization* yum groups. Virtualization is enabled in BIOS. Server boots, CentOS loads and i have even a login prompt. If i'm fast enough to enter login name and password, shell works for about 10 sec. Then, it seems to hang. Pressing CTRL-C seems to work as i see it on screen (CTRL-C text).
I'm used to Xen in CentOS 5 where we can choose a non-Xen kernel at boot time. With CentOS 6 and KVM, i'm kinda lost! I Googled a lot and didn't find anything to disable KVM / select a a non-KVM kernel a boot up time. The server has been repaired but i'm not sure if there is still other problems that prevent KVM to work. I know that they installed the last BIOS version. I have other identical servers that works well with KVM. I tried to disable all i saw for virtualization support in BIOS, result is the same. I did memtest86 tests without problem.
Here are the specs:
Supermicro 6026T-3RF (mainboard X8DT3-S) BIOS 03/17/12 15:50:21 Ver 2.1 Xeon E5520 Kingston 12 Gig RAM (Triple Channel) LSI 9240-8i
What should i do to debug this? Any pointers, URL, etc would be greatly appreciated!
Thanks all.
Guy Boisvert, ing. IngTegration inc. http://www.ingtegration.com
Hi, there,
Guy Boisvert wrote:
I just received a Supermicro server back from factory repair.Installed CentOS 6.3 x86_64 fresh from DVD (tried with 6.4, same result). Everything goes fine until i install Virtualization* yum groups. Virtualization is enabled in BIOS. Server boots, CentOS loads and i have even a login prompt. If i'm fast enough to enter login name and password, shell works for about 10 sec. Then, it seems to hang. Pressing CTRL-C seems to work as i see it on screen (CTRL-C text).
I'm used to Xen in CentOS 5 where we can choose a non-Xen kernel atboot time. With CentOS 6 and KVM, i'm kinda lost! I Googled a lot and
The "choose a kernel" is the grub menu, and unless you've disabled it, you can still do it. Try hitting any key as soon as you see the "about to boot ... in x sec"
I'd boot to single usermode (s at the end of the kernel line), and check the logs.
And I really, *REALLY* don't like Supermicro. We've got a large bunch of servers from Penguin, who's all Supermicro, and we've sent a ton back for repair, as well as doing things here, *and* several of those sent back were sent back more than once.
Luck.
mark
Le 2013-06-27 10:08, m.roth@5-cent.us a écrit :
Hi, there,
Guy Boisvert wrote:
I just received a Supermicro server back from factory repair.Installed CentOS 6.3 x86_64 fresh from DVD (tried with 6.4, same result). Everything goes fine until i install Virtualization* yum groups. Virtualization is enabled in BIOS. Server boots, CentOS loads and i have even a login prompt. If i'm fast enough to enter login name and password, shell works for about 10 sec. Then, it seems to hang. Pressing CTRL-C seems to work as i see it on screen (CTRL-C text).
I'm used to Xen in CentOS 5 where we can choose a non-Xen kernel atboot time. With CentOS 6 and KVM, i'm kinda lost! I Googled a lot and
The "choose a kernel" is the grub menu, and unless you've disabled it, you can still do it. Try hitting any key as soon as you see the "about to boot ... in x sec"
I'd boot to single usermode (s at the end of the kernel line), and check the logs.
And I really, *REALLY* don't like Supermicro. We've got a large bunch of servers from Penguin, who's all Supermicro, and we've sent a ton back for repair, as well as doing things here, *and* several of those sent back were sent back more than once.
Luck.
mark
Thanks for your response Mark.
I was able to get the Grub menu but there was only one kernel choice. I'll try in single user mode and get back here.
As for Supermicro, i was using Tyan before but their support (and associated website) was very bad (last time i used it was 2 years ago, maybe it's better now, dunno...). If we exclude Supermicro and Tyan, i'm not sure were i could go for "OEM" servers. I don't like HP, Dell, etc.: Expensive and they use a lot of "for them only" parts + they try to sell packages that are often not what i want.
Thanks again.
Guy Boisvert, ing. IngTegration inc. http://www.ingtegration.com
On Thu, Jun 27, 2013 at 10:26:37AM -0400, Guy Boisvert wrote:
I was able to get the Grub menu but there was only one kernel choice. I'll try in single user mode and get back here.
Can you rule out a conflict with the LSI card? ie removing it completely.
CentOS 6.4 without installing the virtualisation tool works?
Bios version at latest available version?
Cheers,
Tru
Le 2013-06-27 11:18, Tru Huynh a écrit :
Can you rule out a conflict with the LSI card? ie removing it completely.
CentOS 6.4 without installing the virtualisation tool works?
Bios version at latest available version?
Cheers,
Tru
I just installed Ubuntu 12.04 LTS on the serveur with KVM and it works. Ubuntu kernel is 3.2.0-29-generic x86_64.
So if other identical servers we have works with CentOS 6.4 and the same LSI card, the difference i see for now is the firmware version...Didn't had a chance to really compare but it seems to have a few new parameters in the problematic server's BIOS. I tried to change all of them before coming here.
I'm opening a tech support case with Supermicro.
Thanks for your help!
With CentOS 6 and KVM, i'm kinda lost!
With KVM you do not have a second kernel but modules installed and my check running:
lsmod | grep kvm
If you get nothing back you do not have KVM installed, otherwise you should have something like:
kvm_intel 132873 0 kvm 438094 1 kvm_intel
If you have an AMD processor the module will be named differently.
Marcelo
----- Original Message ----- From: "Guy Boisvert" boisvert.guy@videotron.ca To: "CentOS mailing list" centos@centos.org Sent: Thursday, June 27, 2013 6:30:11 AM Subject: [CentOS] Server hangs after installing KVM
Hi,
I just received a Supermicro server back from factory repair. Installed CentOS 6.3 x86_64 fresh from DVD (tried with 6.4, same result). Everything goes fine until i install Virtualization* yum groups. Virtualization is enabled in BIOS. Server boots, CentOS loads and i have even a login prompt. If i'm fast enough to enter login name and password, shell works for about 10 sec. Then, it seems to hang. Pressing CTRL-C seems to work as i see it on screen (CTRL-C text).
I'm used to Xen in CentOS 5 where we can choose a non-Xen kernel at boot time. With CentOS 6 and KVM, i'm kinda lost! I Googled a lot and didn't find anything to disable KVM / select a a non-KVM kernel a boot up time. The server has been repaired but i'm not sure if there is still other problems that prevent KVM to work. I know that they installed the last BIOS version. I have other identical servers that works well with KVM. I tried to disable all i saw for virtualization support in BIOS, result is the same. I did memtest86 tests without problem.
Here are the specs:
Supermicro 6026T-3RF (mainboard X8DT3-S) BIOS 03/17/12 15:50:21 Ver 2.1 Xeon E5520 Kingston 12 Gig RAM (Triple Channel) LSI 9240-8i
What should i do to debug this? Any pointers, URL, etc would be greatly appreciated!
Thanks all.
Guy Boisvert, ing. IngTegration inc. http://www.ingtegration.com _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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Guy Boisvert -
m.roth＠5-cent.us -
Marcelo Carvalho -
Tru Huynh