Re: Kernel panic booting woody 2.4.18 "root=301"

[Tom Schutter <t.schutter@att.net>]

On Sat, 2002-11-23 at 22:30, Travis Crump wrote:
> Tom Schutter wrote:
> > I am having trouble setting up Debian woody on a IOpener.  I am
> > setting up the IDE drive on another machine, and then hooking it up to
> > the IOpener and attempting to boot.  When I attempt to boot with the
> > drive in the IOpener, I get:
> >   VFS: Cannot open root device "301" or 03:01
> >   Please append a correct "root=" boot option
> >   Kernel panic: VFS: Unable to mount root fs on 03:01
> > 
> > I have tried to add root=/dev/hda1 to the boot prompt with no success.
> > I can boot fine to the drive when it is hooked up to my desktop
> > machine.
> > 
> > "uname -a" gives:
> >   Linux newman 2.4.18-bf2.4 #1 Son Apr 14 09:53:28 CEST 2002 i686
> > unknown
> > 
> > lilo.conf looks like this (with comments removed):
> >   lba32
> >   boot=/dev/hda
> >   root=/dev/hda1
> >   install=/boot/boot-menu.b
> >   map=/boot/map
> >   delay=20
> >   prompt
> >   vga=ask
> >   default=Linux
> >   image=/vmlinuz
> >         label=Linux
> >         read-only
> > 
> > "fdisk -l" gives:
> >   Disk /dev/hda: 128 heads, 63 sectors, 525 cylinders
> >   Units = cylinders of 8064 * 512 bytes
> > 
> >      Device Boot    Start       End    Blocks   Id  System
> >   /dev/hda1   *         1       484   1951456+  83  Linux
> >   /dev/hda2           485       525    165312   82  Linux swap
> > 
> > "lilo -q -v" gives:
> >   LILO version 22.2, Copyright (C) 1992-1998 Werner Almesberger
> >   Development beyond version 21 Copyright (C) 1999-2001 John Coffman
> >   Released 05-Feb-2002 and compiled at 20:57:26 on Apr 13 2002.
> >   MAX_IMAGES = 27
> > 
> >   Reading boot sector from /dev/hda
> >   Global settings:
> >     Delay before booting: 2.0 seconds
> >     No command-line timeout
> >     Always enter boot prompt
> >     Boot-time BIOS data saved
> >     Non-RAID installation
> >     Serial line access is disabled
> >     No message for boot prompt
> >     No default boot command line
> >   Images:
> >     Linux           *
> >       No password
> >       Boot command-line won't be locked
> >       No single-key activation
> >       VGA mode: ASK
> >       Kernel is loaded "high", at 0x00100000
> >       No initial RAM disk
> >       No fallback
> >       Options: "ro root=301"
> > 
> > Interesting, there is where the "root=301" comes from.  But why is it
> > there?  What should I specify in lilo.conf?
> > 
> 
> You need a line:
> initrd=/boot/initrd.img-2.4.19-bf2.4
> in the image section of your lilo.conf[assuming initrd.img-2.4.19-bf2.4 
> exists, it should or something very similarly named].  Also, it is my 
> understanding that 2.4.19-bf2.4 is only supposed to be used for 
> installation and you should install a 'real' kernel once you have your 
> system up and running. apt-cache search kernel-image and apt-get install 
> the one that looks appropriate for your system.  This is not to say 
> though that this kernel shouldn't work indefinately...

AFAIK, this is not required by 2.4.18, but only by 2.4.19.  As you can
see by my uname output above, I am running 2.4.18.  Also note that I can
boot fine if the drive is in another machine, just not if it is in the
IOpener.

-- 
Tom Schutter
t.schutter@att.net