Hi!

First of all, sorry for my bad English, I'm Spanish :P

I have searched all the forums, I have watched a lot of google pages, but I don't know what's the problem.

I have compiled the new Kernel 2.6.6, but, when it boots, I get this error:

VFS: Cannot open root device "LABEL=/" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs or unknown-block(0,0)

My hd is an IDE ext3. I have turned on the ext2 and ext3 feature in the kernel, and the IDE, and the devfs, but I got always this error.

I'm sorry if anybody asked it before, I'm sure I have read that message, but I don't find any solution that works for me.

I have an AMD Athlon Thunderbird 1GHz - 128MB RAM
I'm using Fedora Core 2 with kernel 2.6.5-1.358, but I am trying to compile the kernel source of kernel.org.
My .config is here: ilu.sourceforge.net/config
EDIT: Ah! I forget my Grub configuration:
title Fedora Core (2.6.6)
root (hd1,0)
kernel /boot/vmlinuz-2.6.6 ro root=LABEL=/
initrd /boot/initrd-2.6.6.img

Can anybody help me?

Thanks!

It sounds to me as though maybe you're not specifying which partition your root filesystem is on. I'm not very familiar with GRUB, but judging by

VFS: Cannot open root device "LABEL=/" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs or unknown-block(0,0)

I'd say that "LABEL=/" in your GRUB configuration should probably be your root partition, /dev/hda1 or wherever it is.

Not, it doesn't. All the others grub entries have this label, but only it fails. I have tried what you said, but the same happens.

But thanks for your reply

open /boot/grub/menu.lst
replace the part that says root=/LABEL/ with root=/dev/hda2
(substitute /dev/hda for the disk and partition that your root is installed on.

also, do the same to the file /etc/fstab

that will solve that problem.

I do it, but now I got other error (very similar):

VFS: Cannot open root device "hdb1" or hdb1
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs or hdb1

But...
[root@localhost root]# df /
S.ficheros Bloques de 1K Usado Dispon Uso% Montado en
/dev/hdb1 6551272 5269988 948496 85% /

I changed my Grub config to:
title Fedora Core (2.6.6)
root (hd1,0)
kernel /boot/vmlinuz-2.6.6 ro root=/dev/hdb1
initrd /boot/initrd-2.6.6.img

And my /etc/fstab:
[root@localhost root]# cat /etc/fstab
/dev/hdb1 / ext3 defaults 1 1
none /dev/pts devpts gid=5,mode=620 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda1 /mnt/c vfat defaults 0 0
/dev/hdb2 /mnt/d vfat defaults 0 0
none /proc proc defaults 0 0
none /sys sysfs defaults 0 0
/dev/hdb3 swap swap defaults 0 0
/dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,ro 0 0
/dev/cdrom1 /mnt/cdrom1 udf,iso9660 noauto,owner,kudzu,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner,kudzu 0 0


Did I do anything bad?

Thanks for your reply!