[mdlug] Kernel upgrade problems

[May, Mat]

I am running RHEL AS 3 Update 9 on Dell PowerEdge 2850s and I have just
updated the kernel from 2.4.21-27.0.4.ELsmp to 2.4.21-53.ELsmp and when
I reboot the server to use the new kernel I get the following error:
 
            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
 
I then went into the grub.conf and changed the entry replacing the
"LABEL=" with "/dev/sda3" which is my / partition and also changed the
"root=" from 0:0 to 0:2.  After reboot I received the following error:
 
            Kmod: failed to exec /sbin/modprobe -s -k block-major-8,
errno = 2
            VFS: Cannot open root device "sda3" or 08:03
            Please append a corrent "root=" boot option
            Kernel panic: VFS: Unable to mount root fs on 08:30
 
Here are my grub.conf and device.map files.  
 
Grub.conf
 
[root at dc1-21 grub]# more 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/sda3
#          initrd /initrd-version.img
#boot=/dev/sda
default=1
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Enterprise Linux AS (2.4.21-53.EL)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-53.EL ro root=LABEL=/
        initrd /initrd-2.4.21-53.EL.img
title Red Hat Enterprise Linux AS (2.4.21-53.ELsmp)
        root (hd0,2)
        kernel /vmlinuz-2.4.21-53.ELsmp ro root=LABEL=/
        initrd /initrd-2.4.21-53.ELsmp.img
title Red Hat Enterprise Linux AS (2.4.21-27.0.4.EL)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-27.0.4.EL ro root=LABEL=/
        initrd /initrd-2.4.21-27.0.4.EL.img
title Red Hat Enterprise Linux AS (2.4.21-27.0.4.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-27.0.4.ELsmp ro root=LABEL=/
        initrd /initrd-2.4.21-27.0.4.ELsmp.img
 
device.map
 
[root at dc1-21 grub]# more device.map
# this device map was generated by anaconda
(fd0)     /dev/fd0
(hd0)     /dev/sda
 
I can boot into the older kernel version no problem, but I cannot figure
out what to change to allow me to boot into the newer version.  Any help
would be greatly appreciated.
 
 
In a world without walls and fences, why do we need Windows and Gates?
Mathew May
RGIS LLC
Inventory System Support
mcmay at rgis.com
(248)608-8244
 
 


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