Re: [xcat-user] RHELS 6.2 Console flakiness

Jarrod B Johnson Sat, 15 Sep 2012 21:02:58 -0700

So it is a bug in the RHEL grub.efi binary, however, I have checked in a workaround. Basically, tell grub to forget there is a serial console and pretend it has graphics. Serial console still works this way *and* video console is actually usable by linux.

$ git show 1334391b7cacd4dbc00389595e825f14529d7b84

commit 1334391b7cacd4dbc00389595e825f14529d7b84

Author: jbjohnso <jbjohnso@35838ccf-6b3d-0410-a007-ed7a3c9b06b9>

Date: Mon Sep 10 20:47:52 2012 +0000

Correct RHEL grub buggy behavior when detected on EFI installs

git-svn-id: https://xcat.svn.sourceforge.net/svnroot/xcat/xcat-core/trunk@13751 35838ccf-6b3d-0410-a007-ed7a3c9b06b9

diff --git a/xCAT-server/share/xcat/install/scripts/post.rh.common b/xCAT-server/share/xcat/install/scripts/post.rh.common

index 9340cf6..f34fe6e 100644

--- a/xCAT-server/share/xcat/install/scripts/post.rh.common

+++ b/xCAT-server/share/xcat/install/scripts/post.rh.common

@@ -34,3 +34,9 @@ fi

export HOSTNAME=$(host $IP 2>/dev/null | awk '{print $5}' | awk -F. '{print $1}')

hostname $HOSTNAME

+if [ -f /boot/efi/efi/redhat/grub.conf ]; then #RedHat bug, grub.efi corrupts console unless we are careful...

+ sed -i s/^terminal.*// /boot/efi/efi/redhat/grub.conf

+ bootpart=$(sed -e 's/#.*//' /boot/efi/efi/redhat/grub.conf |grep root|grep -v kernel|head -n 1|awk '{print $2}')

+ bootpart="${bootpart%\\n}"

+ sed -i s!^serial.*!splashimage=$bootpart/boot/grub/splash.xpm.gz! /boot/efi/efi/redhat/grub.conf

+fi

-----"DeFalco, Darian" <[email protected]> wrote: -----

To: xCAT Users Mailing list <[email protected]>
From: "DeFalco, Darian" <[email protected]>
Date: 09/15/2012 11:07PM
Subject: Re: [xcat-user] RHELS 6.2 Console flakiness

I am seeing the same thing on x3550 m4, xCat 2.7.3, RHELS 6.3.

Is this behavior by design?

Darian J. DeFalco
Systems Engineer
Cold Spring Harbor Laboratory
(516) 367-8362

On Aug 24, 2012, at 2:39 PM, Christian Caruthers <[email protected]<mailto:[email protected]>> wrote:

Statefull install on x3650 m4, xCAT 2.7.3. Boot order is PXE, HD0 -- no "Legacy Only". Install works fine, after reboot, when GRUB loads we see "Press any key to continue" 5 times in both the serial console and at the KVM display. If I hit a key, it drops into the standard GRUB menu where I can select an entry from grub.conf to boot. If I don't hit a key, I will eventually see the system boot up over SOL, but the KVM continues to show "Press any key to continue". Regardless of whether or not I hit the "any" key, once it boots, I can see progress in SOL, but not on the KVM which I expect, but once I get a login prompt in SOL, I still don't have access through the KVM.

RHEL is installing its EFI boot partition which I can see listed first in the uEFI boot manager settings.

Has anyone else seen this problem or a fix?

Regards,

Christian D. Caruthers
Senior Consultant - System x Linux HPC
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Re: [xcat-user] RHELS 6.2 Console flakiness

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