Kernel Panic with Latest AS v.4 update

[Nick]

Hi Jeff,

check out your /etc/fstab ur entries must look like this :

LABEL=/     /      ext3    defaults    1   1

and u can reinstall ur grub by using 

#grub-install   /dev/sda




On Thu, 3 Mar 2005 11:23:58 -0500, Jeff Murphy <jeff.murphy at gmail.com> wrote:
> 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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-- 
Nick