Boot failure after GRUB 2.0 installation

[schragge]

Then try this instead:

grub> search --file /boot/grub/grub.cfg --set root

The rest is the same

[dorruk]

Unknown command "search".

As I have mentioned, Ubuntu is on dev/sda7.

[schragge]

But ubuntu is installed on dev/sda7 if that's what you're looking for

Ah, good.Then

set root=(hd0, msdos7)
set prefix=($root)/boot/grub
insmod normal
normal

[dorruk]

Ok this is how it went:

grub rescue> set root=(hd0,msdos7),
grub rescue> set prefix=(hd0, msdos7)/boot/grub,
grub rescue> insmod normal
error: missing ')'
grub rescue> insmod normal)
error: no such partition
grub rescue> ls
(partitions are still there)
grub rescue> set
prefix=(hd0,
root=(hd0,msdos7),

There are no spelling errors, just wrote it down as is.

EDIT: Sorry about that. Just figured out my mistake. In set prefix, I added an unnecessary space.

[dorruk]

Fixing the wrong prefix string, now insmod normal replies:
error: unknown filesystem.
It is ext4. Any ideas?

[schragge]

You somehow missed the closing ')' on 'set root'. Do you entered the comma as the last character? Don't do it. After setting both 'root' and 'prefix'

grub> set

should show

root=(hd0,msdos7),
prefix=(hd0,msdos7)/boot/grub,

[dorruk]

That's what I exactly see at the moment. Still insmod normal won't work.

[schragge]

Hmm,

1. You're booting from your harddisk, right? Not from GParted? If the latter, it seems that grub in your GParted doesn't support ext4. What GParted version it is?
2. Are you sure /dev/sda7 is the Ubuntu partition?

[schragge]

Ah, sorry, I see. You installed GRUB into MBR with BOOTICE. The version of Grub on BOOTICE probably differs from the version of GRUB in Ubuntu. Can you find some LiveCD with the same Ubuntu version like in your Ubuntu partition and boot from it?

[darkod]

I am not sure how chroot works from Gparted Live, since you have no other linux to boot. Try this in terminal:
(I assume you will be root, or first google how to execute root commands in Gparted Live terminal)

mount /dev/sda7 /mnt
mount --bind /proc /mnt/proc
mount --bind /dev /mnt/dev
mount --bind /sys /mnt/sys
chroot /mnt
grub-install /dev/sda
exit
umount /mnt/sys
umount /mnt/dev
umount /mnt/proc
umount /mnt

That is a chroot procedure. Hope fully it will work.

And get a new usb stick, it least 1GB and make it ubuntu live usb, and keep it.