Kernel Panic with Latest AS v.4 update
Jeff Murphy
jeff.murphy at gmail.com
Thu Mar 3 16:23:58 UTC 2005
i'm having a similar problem.
i've just installed RHAS4 and then installed the kernel source per the
instructions in the release notes for RH4.
i copied the i686.config (non-SMP), changed EXTRAVERSION in the
Makefile, did the build, installed it and the modules. and the kernel
panics with the "mkrootdev: label / not found" message on boot.
e2label confirms the label is there. the original kernel boots just
fine. the grub.conf entries are virtually identical (see below). i
also tried the i686-smp.config with similar results.
default=1
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Enterprise Linux AS (2.6.9-netpass)
root (hd0,0)
kernel /vmlinuz-2.6.9-netpass ro root=LABEL=/
initrd /initrd-2.6.9-netpass.img
title Red Hat Enterprise Linux AS (2.6.9-5.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-5.EL ro root=LABEL=/
initrd /initrd-2.6.9-5.EL.img
[root at npw2-d l2]# e2label /dev/sda1
/boot
[root at npw2-d l2]# e2label /dev/sda2
/
On Mon, Feb 21, 2005 at 11:20:21AM -0500, Smith, Albert wrote:
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Dean Landry
> > Sent: Monday, February 21, 2005 10:38 AM
> > To: redhat-list at redhat.com
> > Subject: Kernel Panic with Latest AS v.4 update
> >
> > The RHN just released an update to my kernel
> > (2.6.9-5.03.ELsmp). I installed it using up2date and then
> > restarted the machine. I got a Kernel Panic when I restarted
> > so I've rebooted into the old kernel (2.6.9-5.ELsmp).
> >
> > The lines leading up to the error were:
> >
> > Red Hat mash version 4.1.18 starting
> > Mounted /proc filessystem
> > Mounting sysfs
> > Creating /dev
> > starting udev
> > Loading jbd.ko module
> > Loading ext3.ko module
> > Creating root device
> > mkrootdev: label / not found
This means that the volume isn't labeled or doesn't match what's in
grub.conf.
> > Mounting root filesystem
> > mount: error 2 mounting ext3
> > mount: error 2 mounting none
> > Switching to new root
> > switchroot: mount failed: 22
> > umount /initrd/dev failed: 2
> > Kernel panic - not syncing: Attempted to kill init!
> >
> > How do I start to troubleshoot this?
> >
>
> When you put the new kernel in did you create a new ramdisk?
That's done automatically by the post-install scripts for the kernel.
You can see this with:
$ rpm -q kernel --scripts
As for the original poster, let's have a look at /etc/grub.conf. Please
don't tell us you're still running lilo.
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