New kernel fails to boot! Unsure of the cause

nro · 11-12-2003, 08:31 PM

I have recently attempted to upgrade to 2.4.22 kernel. I configured what I needed(or so I thought) and ran all the commands to compile and install a new kernel. When I try to boot the new kernel, I get the following error while booting up:

ds: no socket drivers loaded!
VFS: Cannot open root device "LABEL=/" or 00:00
Please append a carrect "root=" boot option
Kernel panic: VFS: Unable to mount root on 00:00

Everything before that seems to work correctly. After I reach this, I go no further. My grub.conf looks like this:

# 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 (hd1,0)
# kernel /vmlinuz-version ro root=/dev/hdb2
# initrd /initrd-version.img
#boot=/dev/hda
default=2
timeout=30
splashimage=(hd1,0)/grub/splash.xpm.gz
title Red Hat Linux (2.4.22)
root (hd1,0)
kernel /vmlinuz-2.4.22 ro root=LABEL=/ hdc=ide-scsi hde=noprobe hdg=noprobe
initrd /initrd-2.4.22.img
title Red Hat Linux (2.4.20-20.9custom)
root (hd1,0)
kernel /vmlinuz-2.4.20-20.9custom ro root=LABEL=/ hdc=ide-scsi hde=noprobe hdg=noprobe
initrd /initrd-2.4.20-20.9custom.img
title DOS
rootnoverify (hd0,0)
chainloader +1
#title Red Hat Linux (2.4.20-20.9)
# root (hd1,0)
# kernel /vmlinuz-2.4.20-20.9 ro root=LABEL=/ hdc=ide-scsi hde=noprobe hdg=noprobe
# initrd /initrd-2.4.20-20.9.img
#title Red Hat Linux (2.4.20-8)
# root (hd1,0)
# kernel /vmlinuz-2.4.20-8 ro root=LABEL=/ hdc=ide-scsi
# initrd /initrd-2.4.20-8.img

This seems to be an easily fixed item, but maybe I'm missing something that you can spot :). Thanks

captainstorm · 11-13-2003, 04:01 AM

First, did you run "grub-install /dev/<your boot device>" after changing the grub.conf file? If not, you should run this command after editing the grub.conf. BUT BE CAREFUL since I do not know which one is your boot device
otherwise,
If you can still boot into the original kernel, try to change the "root=LABEL=/" line of your new kernel to "root=/dev/hdb1" and then run the "grub-install /dev/<your boot device>" command and restart to see whether it works.