I have installed a new linux version 2.6.12
I constructed the executable from the source code and copied it to the /boot directory with the name newkernel-2.6.12

the menu.lst file in my /boot/grub directory looks like:
title Ubuntu, kernel 2.6.12-9-386
root (hd0,6)
kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda7 ro quiet splash
initrd /boot/initrd.img-2.6.12-9-386
savedefault
boot

title Ubuntu, kernel 2.6.12-9-386 (recovery mode)
root (hd0,6)
kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda7 ro single
initrd /boot/initrd.img-2.6.12-9-386
boot

I added these lines in order to add my new kernel,

title Ubuntu, kernel newkernel(2.6.12)
root (hd0,6)
kernel /boot/newkernel-2.6.12 root=/dev/hda7 ro quiet splash
boot

but it suspended while booting it after restarting, what could be the problem, how should I have changed menu.lst?

thanx in advance

i think i need to run mkinitrd in order to install an initial ram disk (initrd) but when I run

mkinitrd /boot/initrd-2.6.12.img 2.6.12

it says bash: mkinitrd: command not found

it does still not work when I run apt-get install mkinitrd

Post the message that pops upon hangup.

i could not copy the boot error but it is like:

kernel panic - not syncing VFS: unable to mount root fs on unk

??!!!!

I got totally stuck about what to do next..

the last version of menu.lst is now:
title Ubuntu, kernel newkernel(2.6.12.1)
root (hd0,6)
kernel /boot/newkernel-2.6.12.1 root=/dev/hda7 ro quiet splash
savedefault
boot

title Ubuntu, kernel 2.6.12-9-386
root (hd0,6)
kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda7 ro quiet splash
initrd /boot/initrd.img-2.6.12-9-386
savedefault
boot


do i need initrd if so why can mkinitrd command not found when I run mkinitrd /boot/initrd-2.6.12.1.img 2.6.12.1

Somebody help me!