I got the terrible message: kernel panic !

[HTR]

Hello all.

I had a trouble and I tryed to fix it, but another one had appeared.
Let me explain:
I got the following message:
couldn´t find matching filesystem label:/mnt/data

well, I read in another forum the following lines:
"if you are using ext2 or ext3 filesystems, and you know what the 'real' device is, i.e '/dev/hda3' you can try to relabel that device and partition as root with:
tune2fs -L /backup1 /dev/hda3"

well, I thought that the real device would be hda1, so I executed the command like this:
tune2fs -L /mnt/data /dev/hda1

but I was wrong, because after this I reboot the machine and I got a terrible message: kernel panic no init found.

Can anyone help me with this ?

Best regards,

HTR.

[devils casper]

Which Linux Distro are you using?

[HTR]

CentOS 3, kernel 2.4

[devils casper]

Okk ! Boot from any Live CD or try boot up in Rescue mode. Post the contents of /etc/fstab, /boot/grub/grub.conf files and output of fdisk -l command.

[HTR]

Ok casper, I´ll try this. Thks.

[HTR]

Hello.

I booted with Ubuntu Live CD. fdisk -l didn´t return anything. There wasn´t the grub.conf and the content of /etc/fstab was:
/dev/mapper/casper-snapshot / auto noatime 0 0
tmpfs /tmp tmpfs nosuid, nodev 0 0
/dev/hda2 swap swap defaults 0 0

That´s all.

[devils casper]

You have to mount CenOS Partitions.
Execute this

sudo fdisk -l

* -l, Its small L.
It will ask for password. Hit Enter key.

[HTR]

Do you mean type this command line with Ubuntu or CentOS ? ´Cause I can´t get no command line with CentOS, the boot freezes at the message kernel panic...

[devils casper]

Boot up from Ubuntu and execute above command. Post output here.

[HTR]

Here it is:
Disk /dev/hda: 80.0 GB
device boot Start End Blocks Id System
/dev/hda1 * 1 9598 77095903+ 83 Linux
/dev/hda2 9599 9729 1052257+ 82 Linux Swap