[plug] cant boot system any longer

[Rob Dunne]

Hi Plug,

I just upgraded a kernel from 2.4.21-37.ELsmp to 2.6.16.16,
but now I cant boot the system with this kernel.

It says
"VFS: Cannot open root device "sda2"

here is the grub.conf

title Red Hat Enterprise Linux WS (2.6.16.16)
         root (hd0,0)
         kernel /vmlinuz-2.6.16.16 ro root=/dev/sda2 nomce
         initrd /initrd-2.6.16.16.img
title Red Hat Enterprise Linux WS (2.4.21-37.ELsmp)
         root (hd0,0)
         kernel /vmlinuz-2.4.21-37.ELsmp ro root=LABEL=/ nomce
         initrd /initrd-2.4.21-37.ELsmp.img


according to https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121848
the device names can change with different kernels. Is this correct? How 
do I find the correct device name?


Bye
Rob