Ubuntu server cannot find the root device

[Serge Hallyn]

Quoting Asif Iqbal (vadud3 at gmail.com):
> how do I do that from busybox at (initramfs) ?

mkdir /mnt2
mount /dev/sda2 /mnt2
cd /mnt2
mount -t proc proc proc
# If you have a separate boot device, mount it now.  I didn't
chroot .
# (you won't see a prompt here, just keep going)
stty rows 24 cols 80
vi /boot/grub/grub.cfg
# make the edits here
exit
cd /
umount /mnt2/proc /mnt2
reboot