On Tue, 2 Nov 2004, Noah wrote:
using: Redhat-enterprise WS version 3
I just built a custom kernel using the 2.4.21-20.EL source rpm. it simply does not boot and claims a VFS error and is unable to open root device "LABEL=/"
here is a screen picture of the error: http://www.enabled.com/~noah/pictures/screen/IMG_0062.jpg
I dont know what exactly I need to do here. what is a safe, easy way to fix this problem so I can boot my custom kernel.
--- cat /etc/fstab ---
# cat /etc/fstab LABEL=/ / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2 none /dev/pts devpts gid=5,mode=620 0 0 none /proc proc defaults 0 0 none /dev/shm tmpfs defaults 0 0 /dev/sda3 swap swap defaults 0 0 /dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0
you need to either compile in support for disk labels (if you find out how to do this please let us know) or change the system to mount/boot based on raw devices.
for raw devices change fstab
LABEL=/ / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2
to /dev/sda2 / ext3 defaults 1 1 /dev/sda1 /boot ext3 defaults 1 2
You will also wish to change the corresponding lines in /etc/grub.conf (assuming you are using grub)
from
kernel /vmlinuz-2.4.21-20.ELsmp ro root=LABEL=/to
kernel /vmlinuz-2.4.21-20.ELsmp ro root=/dev/sda2where the "kernel" line points to the correct kernel image to boot
then reboot and all should be right
HTH,
-- Steve.
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