Grub Error 15

[abominable]

I have a 64-bit system.

After installing Jaunty, and rebooting I got the Error 15. So I boot back with the live cd. And tried various things.

First of all. fdisk -l gives me

Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000a7ec2           

  Device Boot   Start     End   Blocks  Id System
/dev/sda1  *      1    38913  312568641  7 HPFS/NTFS

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002a530           

  Device Boot   Start     End   Blocks  Id System
/dev/sdb1  *      1    60801  488384001  83 Linux 

Disk /dev/sdc: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xed9eafe5           

  Device Boot   Start     End   Blocks  Id System
/dev/sdc1  *      1    2611  20972826  7 HPFS/NTFS
/dev/sdc2  *    2612    24321  174385575  f W95 Ext'd (LBA)
/dev/sdc5      8096    24321  130335313+  7 HPFS/NTFS   
/dev/sdc6      2612    3109   4000122  82 Linux swap / Solaris
/dev/sdc7      3110    8095  40050013+ 83 Linux        

Partition table entries are not in disk order.

My root partition is sdc7 with ext4 file system.

So I tried after booting to the live cd, I tried each of the following commands, rebooted, getting the same error and then back to the live cd to try the next command. The commands are the following.

sudo su -
mkdir tp
mount /dev/sdc7 tp/
grub-install --root-directory=tp/boot --recheck /dev/sdc

Then I thought that I might need to install it in the first disk.

 sudo su -
mkdir tp
mount /dev/sdc7 tp/
grub-install --root-directory=tp/boot --recheck /dev/sda

Nothing again and I tried with the grub command.

 sudo su -
grub
> find /boot/grub/stage1
find /boot/grub/stage1
 (hd2,6)
> root (hd2,6)
root (hd2,6)
> setup (hd2)
setup (hd2)
 Checking if "/boot/grub/stage1" exists... yes
 Checking if "/boot/grub/stage2" exists... yes
 Checking if "/boot/grub/e2fs_stage1_5" exists... yes
 Running "embed /boot/grub/e2fs_stage1_5 (hd2)"... 17 sectors are embedded.
succeeded
 Running "install /boot/grub/stage1 (hd2) (hd2)1+17 p (hd2,6)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded
Done.
>quit

But none of all these times my problem fixed.

So I would like to ask If I miss something or if you have any idea on how can I fix my problem.
Thanx in advance for any reply.

[Qqmike]

Re: Grub Error 15

Looks like you have a Windows installed.
Looks like you previously also had another Linux installed.
Doesn't matter, whatever ...

If it is the case that you want GRUB to handle all the booting, and you don't mind writing GRUB to the MBR of the first BIOS boot drive (the drive BIOS is set to boot from first), then do (from Live CD):

sudo grub
grub>find /boot/grub/stage1
(hd2,6)
grub>root (hd2,6)
grub>setup (hd0)
grub>quit
$exit
reboot to test it

[Qqmike]

Re: Grub Error 15

You must install GRUB to (hd0), assuming you are booting normally (i.e., not intervening in BIOS each time to change the boot order). That will be accomplished from the above post.

But if that doesn't work to clear the Error 15,
add this to the mix:

Edit /boot/grub/menu.lst (in (hd2,6) as root to include

title Jaunty whatever etcetera
root (hd2,6) # <= include this root statement
kernel etc etc -- leave it as is
initrd etc etc -- leave it as it


(I've seen one case where the new UUID didn't snap., but the older root statement worked.)

[abominable]

Re: Grub Error 15

Thanx for your replies, I fixed it.

[EDIT]
I did not mention the way since I was trying various things and I can't say for sure . Sorry about that.

[Qqmike]

Re: Grub Error 15

How?

[Guest]

Re: Grub Error 15

I've been banging my head over this problem for a long while, and today found the solution in this thread:

• GRUB Error 2 -- 8.10 Multiboot w 8.04 or prior

Cause: existing [K]Ubuntu version is prior to 8.10. Those grub files won't boot from grub in later versions.

Fix: copy grub files from the new install (mine were in a different partition) to the old directory, along with whatever menu.lst you like. Then reboot. Jaunty!

In this example, the partition containing the new root install (and boot subdirectory) is mounted as "/new".

$ cd /boot/grub
$ sudo mkdir grub-files.BAK
$ sudo cp * grub-files.BAK/
$ sudo cp /new/boot/grub/* .
$ sudo cp grub-files.BAK/menu.lst .

[Qqmike]

Re: Grub Error 15

edgarde, nice troubleshooting, nice work you did there.

[GreyGeek]

Re: Grub Error 15

Good job!

Would you mark it [SOLVED] so it can be a help to others? Thanks!