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Old 09-09-2003, 02:49 AM   #1
Registered: Aug 2003
Location: N.C.
Distribution: rh9, fc1, slack 9.1, 10
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kernel panic on reboot of newly compiled kernel

just compiled 2.4.22 and upon rebooting get the following error message:
VFS:  Cannot open root device "LABEL=/" or 00:00
Please append a correct "root=" boot option
Kernel panic:  VFS:  Unable to mount root fs on 00:00
here is my grub.conf:
# 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 (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/hda2
#          initrd /initrd-version.img
title Red Hat Linux (2.4.22)
        root (hd0,0)
        kernel /vmlinuz-2.4.22 ro root=LABEL=/ hdc=ide-scsi
        initrd /initrd-2.4.22.img
title Red Hat Linux (
        root (hd0,0)
        kernel / ro root=LABEL=/ hdc=ide-scsi
        initrd /
title Red Hat Linux (2.4.20-6)
        root (hd0,0)
        kernel /vmlinuz-2.4.20-6 ro root=LABEL=/ hdc=ide-scsi
        initrd /initrd-2.4.20-6.img
i have no problems booting into the two other kernel versions listed here.

Can anyone help me with this? Thanks in advance.

NOTE: compiled kernel according to Drozz's guide found here:
Old 09-09-2003, 03:29 AM   #2
Registered: Jun 2001
Location: UK
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i'd assume that you'd need to specifically enable ext2 label support. or just change the entry to a real /dev/hdXY entry - press e to edit the line etc....
Old 09-09-2003, 05:14 AM   #3
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Location: Devon, UK
Distribution: Debian Etc/kernel 2.6.18-4K7
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Interesting as I am also having similar problems with this kernel seehere
Old 09-09-2003, 07:53 AM   #4
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Initially - I had a similar error with 2.4.22 on Red Hat 9 with LILO - I sorted it by explicitly stating what the device name of the root partition was - ie - I inserted :


and got rid of :


from lilo.conf.
Old 09-09-2003, 09:40 AM   #5
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same here, "/" didnt work and gave me the same error as posted above.
"/dev/hda" worked.


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