I am trying to compile the linux kernel to enable QOS support in it but having problems since a while:

Cannont 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

Here is what i am doing

make mrproper
make xconfig
make dep
make clean
make bzImage
make modules
make modules_install

my new kernel version name is 2.4.20-8wQOS

then for installing:
cp arch/i386/boot/bzImage /boot/bzImage-2.4.20-8wQOS
cp System.map /boot/System.map-2.4.20-8wQOS
mkinitrd /boot/initrd-2.4.20-8wQOS 2.4.20-8wQOS

ln -s /boot/System.map-2.4.20-8wQOS /boot/System.map


My grub.conf file looks like:

splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8)
root (hd0,0)
kernel /vmlinuz-2.4.20-8 ro root=LABEL=/
initrd /initrd-2.4.20-8.img
title Red Hat Linux (2.4.20-8wQOS)
root (hd0,0)
kernel /vmlinuz-2.4.20-8wQOS ro root=LABEL=/
initrd /initrd-2.4.20-8wQOS.img


However when i boot the kernel 2.4.20-8wQOS i get:

Cannont 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

My output of fdisk -l /dev/hda is

Device Booot
/dev/hda1 *
/dev/hda2
/dev/hda3

I even changed the root-LABEL=/ in grub.conf to root=LABEL=/dev/hda1 but din't help

Can someone help me ?

Thanx,
Sachin

yeah, I had the same problem when I tried to install a newer linux to my old pc. I didn't figure out anything and reinstalling the distro didn't either work...I only got it working when I removed all my partitions and re-wrote the whole partition table, formatted and reinstalled Linux.

don't know why this happened..it had something to do with the newer kernel too. hopefully you don't have to wipe out your partitions :/