Bug 625216

Summary: grubby recieved SIGSEGV in kickstart
Product: Red Hat Enterprise Linux 6 Reporter: Jack Neely <jjneely>
Component: grubbyAssignee: Brian Lane <bcl>
Status: CLOSED NOTABUG QA Contact: Release Test Team <release-test-team-automation>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: borgan, gasmith, notting, pasteur, pjones, syeghiay
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2011-01-10 19:41:08 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 647893    
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Description Flags
grub configuration none

Description Jack Neely 2010-08-18 21:27:39 UTC 
Description of problem:

In my test Kickstart for the RHEL 6 beta, I setup a reinstall target in grub.  This includes running the following command in the %post

/sbin/grubby --add-kernel=/boot/install/vmlinuz    --title="Reinstall Workstation"    --copy-default    --args="ks=http://web-kickstart.linux.ncsu.edu/ks.py ramdisk_size=8192 noshell noipv6 ksdevice=$KSDEVICE"    --initrd=/boot/install/initrd.img

Grubby dies horribly:

grubby recieved SIGSEGV!  Backtrace (8):
/sbin/grubby[0x804f8b8]
[0x67c400]
/lib/libc.so.6(+0x773a8)[0x1873a8]
/sbin/grubby[0x804e1e4]
/sbin/grubby[0x804e33d]
/sbin/grubby[0x804f4f8]
/lib/libc.so.6(__libc_start_main+0xe6)[0x126cc6]
/sbin/grubby[0x80490a1]

When the system reboots after installation I'm able to log in as root and run the same grubby command without error.


Version-Release number of selected component (if applicable):
grubby-7.0.15-1.el6.i686
Comment 2 Bill Nottingham 2010-08-18 23:25:48 UTC 
This looks similar to bug 592294.
Comment 3 Jack Neely 2010-08-19 14:22:59 UTC 
Created attachment 439696 [details]
grub configuration

This is the grub.conf that anaconda generates, but grubby fails to alter.
Comment 4 RHEL Program Management 2010-10-29 21:31:58 UTC 
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.
Comment 5 Jack Neely 2010-11-30 15:35:50 UTC 
Now that RHEL 6 final is sitting on my test bench I've discovered that Grubby no longer segfaults in the kickstart %post script.  Instead I get an error message

   grubby fatal error: unable to find a suitable template

That the grub configuration is left unaltered.

I'm still using the below grubby incantation.  I've verified that all the files referenced and environment variables exist.

/sbin/grubby --add-kernel=/boot/install/vmlinuz    --title="Reinstall Workstation"    --copy-default    --args="ks=http://web-kickstart.linux.ncsu.edu/ks.py noshell noipv6 ksdevice=$KSDEVICE"    --initrd=/boot/install/initrd.img

Running the same command on the system after the install produces no error and correctly edits the grub.conf
Comment 6 Jack Neely 2011-01-10 18:09:23 UTC 
From the rhel6-list the following in your kickstart before any yum or grubby commands does work around the bug:

ln -s `awk '{ if ($2 == "/") print $1; }' /etc/fstab` /dev/root
Comment 7 Peter Jones 2011-01-10 19:41:08 UTC 
If you're going to run grubby from %post, you're going to need to set up the environment that's needed on a running system, which includes that symlink.