Kernel Panic after FC4 upgrade

Michael DeCleene decleene at hotmail.com
Thu Jun 30 02:03:30 UTC 2005 

In case anyone cares, I did manage to get this to work.  Basically went 
through the kernel setup and compiled most of the SCSI modules and all the 
relevant RAID modules directly into the kernel, rather than leaving them as 
loadable modules.  This appears to have done the trick.  Woo hoo!

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: RE: Kernel Panic after FC4 upgrade
>Date: Tue, 28 Jun 2005 22:53:36 -0400
>
>In any case, as I've already posted, I do have the most recent version, so 
>that's not the issue.
>
>I suppose I could try compiling a custom kernel, but I'm not a kernel 
>hacker, so I don't have a lot of experience with this, meaning I don't know 
>for sure what modules I need.  And while I understand the concept that's 
>not terribly likely to be something I could get to work easily.  Which is 
>why I'm really hoping someone can point to something in one of the 
>configuration files I've posted to date and suggest something else I can 
>try.
>
>Failing that, I'll probably reinstall FC3 and start looking at switching to 
>Suse...
>
>Mike
>
>>From: Ted Kaczmarek <tedkaz at optonline.net>
>>Reply-To: tedkaz at optonline.net,For users of Fedora Core releases 
>><fedora-list at redhat.com>
>>To: For users of Fedora Core releases <fedora-list at redhat.com>
>>Subject: RE: Kernel Panic after FC4 upgrade
>>Date: Tue, 28 Jun 2005 20:53:26 -0400
>
>>Considering it is not a flagged dependency as rpm was not told it is , I
>>would try it, can't hurt. If it is an initrd image issue, you could
>>build into the kernel all the drivers needed to boot as a test. This was
>>actually a common issue for me in early SMP releases on a dual athlon
>>box. Somewhere in RH9 era it stopped being a problem.
>>
>>Ted
>> >
>> > 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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