[vox-tech] new kernel -> kernel panic

[Issac Trotts]

On Fri, Dec 27, 2002 at 01:42:26PM -0800, ME wrote:
> (Sorry, did not answer your other question. See below.)
> 
> ME said:
> > This suggests that you are using CFS (Cryptographic Filesystem) for your
> > root filesystem ("/") and the new kernel does not have support for it.
> >
> > 03:02 refers to device major 03 (hda) minor 2 (partition 2) or /dev/hda2
> >
> > It is also possible that support for ide controllers was omited from
> > your new kernel. Verify that you have ide support in this kernel/
> >
> > Did you build your own kernel, or use one from your vendor?
> >
> > Did the previous kernel use an initrd disk image to preload modules
> > before switching roots?
> >
> > in your bootloader,m what is your root= set to?
> >
> > Hope this points you in directions to find the problem you face.
> >
> > -ME
> >
> > Issac Trotts said:
> >> While trying to get a PCMCIA card working on my laptop,
> >> I installed a few things related to PCMCIA from dselect,
> >> including a kernel with PCMCIA support.  The next time I
> >> started the computer, it stopped after printing this message:
> >>
> >>   request_module[clock-major-3]: Root fs not mounted
> >>   CFS: Cannot open root device "302" or 03:02
> >>   Please append a correct "root=" boot option
> >>   Kernel panic: CFS: Unable to mount root fs on 03:02
> >>
> >> Please tell me if you know of a good way to resolve this,
> >> or if I need to supply additional information.
> 
> If "resolve" means "permit me to use my machine like before the upgrade."
> then you can try to specify an older kernel that you know works (like your
> previous one). In LILO, you can do this at the LILO boot prmpt by pressing
> "shift" when you see LILO and then when you see "LILO:" you can press
> "TAB" to list the available kernels "known" by LILO on that system. You
> can then type-in the name of the kernel you want to load. Newer Debian,
> RedHat (etc) distros often have a nifty ASCII-art-style menu with a
> curses-like interface to selct an older kernel.
> 
> I don't use GRUB and dont have suggestions for that if you are using it.
> 
> If you did not make your older kernel available as a fallback plan,
> examine your distro's boot disks. Many have emergency boot disks and
> procedures for falling back to an older kernel.
> 
> HTH.

Now I have a GRUB menu that lets me select which kernel I want. 
Before, I didn't have any choice.  It just loaded a kernel without
stopping.  I'm not sure what kind of boot loader I had before, and
I didn't know how to tell what it was nor how to change it.  

Issac


> 
> -ME
> 
> 
> 
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-- 
Issac Trotts