Kernel Panic after FC4 upgrade

[Michael DeCleene]

(sorry for the self-reply.  I didn't realize that if I subscribed in digest 
mode I wouldn't have any other mechanism to reply to people directly, and I 
don't want to TOTALLY break the thread....)

In answer to Ted Kaczmarek's question:
Did you update mkinitrd before updating kernel?
That really should be added to the yum upgrade faq for FC3>FC4.

The answer is that it's not really applicable--I downloaded the 4 CD's for 
FC4 and installed from CD.  I don't know offhand which packages were/were 
not updated.  But it's not a yum issue per se.

I can potentially try to install this package directly from safe mode if you 
think it will help, but I'd be a little alarmed if the CD install package 
somehow missed this if it's a critical dependency....

Mike

>From: "Michael DeCleene" <decleene at hotmail.com>
>Reply-To: For users of Fedora Core releases <fedora-list at redhat.com>
>To: fedora-list at redhat.com
>Subject: Kernel Panic after FC4 upgrade
>Date: Tue, 28 Jun 2005 17:34:10 -0400
>
>Hi, folks,
>
>I recently updated from FC3 to FC4 via CD install. Install went fairly 
>smoothly, but I now can't get the system to boot--I get a kernel panic. 
>Relevant section of boot log follows (apologies for any typos--I can't 
>cut-and-paste this without a working system...)
>CODE
>
>Mounting root filesystem
>mount: error 6 mounting ext3
>Switching to new root
>ERROR opening /dev/console!!!!: 2
>error dup2'ing fd of 0 to 0
>error dup2'ing fd of 0 to 1
>error dup2'ing fd of 0 to 2
>unmounting old /proc
>unmounting old /sys
>switchroot: mount failed: 22
>Kernel panic - not syncing: Attempted to kill init!
>
>
>Having done some poking here and on google, I'm expecting this is a grub 
>issue with finding my proper root filesystem, since it seems to have issues 
>when it tries to mount the root device. Which should be trivial to fix, so 
>I'm sure I'm missing something obvious here. But I've been at this for 
>several hours, and can't for the life of me find the issue...
>
>Some configuration info: I'm attempting to boot from a SCSI raid array. 
>That array has /boot on /dev/sda1, the correct root filesystem on 
>/dev/sda2, and /swap on /dev/sda3. I'm using the smp kernel because I do 
>have an SMP system. I know the array is OK because I can properly mount it 
>when booting into rescue mode.
>
>I've looked at grub.conf and didn't see any obvious issues, though I've 
>tried a few suggestions I've found online. I've tried reinstalling grub on 
>/dev/sda. I've run grub and verified that it has setup hd0. I've checked 
>the device map, which looks OK. I do note fedora is using hd0 in grub, not 
>sd0, to represent my array, but since the device map correctly points to 
>the right place, I don't think that would be an issue (especially given 
>that the system can in fact find the kernel). Basically, I'm stuck here, 
>and looking for some thoughts/suggestions:
>
>Some possibly useful files follow:
>/etc/grub.conf looks like:
>CODE
>
># grub.conf generated by anaconda
>#
>#Note that you do not have to rerun grub after making changes to this file
>#NOTICE:  You have a /boot partition.  This means that
>#               all kernel and initrd paths are relative to /boot/, eg.
>#               root (hd0,0)
>#               kernel /vmlinuz-version ro root=/dev/sda2
>#               initrd-version.img
>#boot=/dev/sda
>default=1
>timeout=10
>splashimage=(hd0,0)/grub/splash.xpm.gz
>title Fedora Core (2.6.11-1.1369_FC4smp)
>    root (hd0,0)
>    kernel /vmlinuz-2.6.11-1.1369_FC4smp ro root=/dev/sda2
>    initrd /initrd-2.6.11-1.1369_FC4smp.img
>title Fedora Core (2.6.11-1.1369_FC4)
>    root (hd0,0)
>    kernel /vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/sda2
>    initrd /initrd-2.6.11-1.1369_FC4.img
>
>
>/boot/grub/device-map looks like:
>CODE
>
>#this device map was generated by anaconda
>(fd0)    /dev/fd0
>(hd0)   /dev/sda
>
>
>/etc/fstab looks like:
>CODE
>
>/dev/sda2      /              ext3     defaults               1 1
>/dev/sda1      /boot        ext3     defaults               1 2
>none             /dev/pts    devpts  gid=5,mode=620 0 0
>none             /proc        proc      defaults              0 0
>none             /dev/shm  tmpfs    defauls               0 0
>/dev/sda3      /swap       swap     defauls               0 0
><more in this file about my IDE hard drives and floppy>
>
>
>Any suggestions greatly appreciated!!!!
>
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