LinuxQuestions.org - [SOLVED] Problems clearing ERROR 15 from grub

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Problems clearing ERROR 15 from grub

Hi-
I've tried to solve this on my own but am running into issues. I am using Ubuntu 10.10 dual booted with windows vista. My boot is in a separate partition (sda5). My computer told me that there was limited space on that partition so I tried to clean things up using apt-get by removing old kernels. Turns out I didn't do it correctly because I consistently get an 'ERROR 15' when I shut down and rebooted my computer. I have a live-CD USB-stick so I tried reinstalling grub, (grub-install) updating the menu.lst (update-grub), and manually going through menu.lst and changing to root=(hd0,4) and groot=/dev/sda6

but I still get this ERROR 15 when I reboot.

when I do
sudo grub
find /boot/grub/stage1
find /boot/stage1

both give me an ERROR 15 message and I'm not sure how to proceed with a diagnosis.
When I ran update-grub, occasionally it used to tell me that /etc/fstab may be incorrect but (1) it doesnt tell me that anymore and (2) I dont know how to fix fstab

Here is fstab

Code:

# /etc/fstab: static file system information.

#

# <file system> <mount point>  <type>  <options>      <dump>  <pass>

proc            /proc          proc    defaults        0      0

# /dev/sda6

UUID=a7a3dd56-b14a-493d-adcc-8379aa3aed9c /              ext3    relatime,errors=remount-ro 0      1

# /dev/sda5

UUID=56b6628c-4a18-43d6-95f4-8b50dd1e1d2e /boot          ext3    relatime        0      2

# /dev/sda7

UUID=5d9497bb-2d3f-4ec3-b3a1-8f7b72645477 none            swap    sw              0      0

/dev/scd0      /media/cdrom0  udf,iso9660 user,noauto,exec,utf8 0      0

Here is menu.lst

Code:

title          Ubuntu 10.10, kernel 2.6.35-27-generic

uuid            56b6628c-4a18-43d6-95f4-8b50dd1e1d2e

kernel          /vmlinuz-2.6.35-27-generic root=UUID=a7a3dd56-b14a-493d-adcc-8379aa3aed9

c ro quiet splash 

initrd          /initrd.img-2.6.35-27-generic

quiet



title          Ubuntu 10.10, kernel 2.6.35-27-generic (recovery mode)

uuid            56b6628c-4a18-43d6-95f4-8b50dd1e1d2e

kernel          /vmlinuz-2.6.35-27-generic root=UUID=a7a3dd56-b14a-493d-adcc-8379aa3aed9

c ro  single

initrd          /initrd.img-2.6.35-27-generic

Here is /boot/grub (note that stage 1 does exist!) ( this is /dev/sda5)

Code:

root@ubuntu:/# ls /boot/grub/

default        fat_stage1_5      jfs_stage1_5  minix_stage1_5    stage2

device.map    grubenv            menu.lst      reiserfs_stage1_5  xfs_stage1_5

e2fs_stage1_5  installed-version  menu.lst~    stage1

Here is my problem

Code:

grub> find /boot/grub/stage1



Error 15: File not found



grub> find /boot/stage1    



Error 15: File not found

I guess my main question is, if stage1 can't be found, what does that mean? what should I do next? Thanks

Ubuntu10.10 uses grub2. Do you have cd?
http://karuppuswamy.com/wordpress/20...rescue-prompt/

I think that Error 15 means "Can't find bootable Image"
Does

Code:

update-grub

show any found images at all? If not... Error 15 :(

And, as Eddy1 above, Ubuntu 10.10 uses Grub2. Try googling "Grub2 Ubuntu", there's a very good "howto" sort of page among the Ubuntu Info.

Play Bonny! :hattip:

Hi
Thanks for all your replies. After I wrote that, ( I was on ubuntu through the live-CD) I rebooted and everything magically worked. :/ My (uneducated) guess is that the reboot before that I had tried to do grub-install, but I did not do update-grub. That had the effect that I couldn't even get the error-15 error and I had to restore a menu.lst that I had saved. I'm not sure, but I think it was looking for "hda" when all my partitions are "sda".
When I rebooted, wrote this message on this forum, I did update-grub and grub-install and allowed them to rewrite anything they wanted (namely menu.lst). I also used this command

Code:

sudo mount -o bind /dev /mnt/root/dev

before I tried to do 'grub-install'.
(basically from here : http://ubuntuforums.org/showthread.php?t=224351)
Something about this worked. Again, thanks all.

If solved mark as solved so others who are experiencing same problem can find answer to their problem.

@ EDDY1

Quote:

http://karuppuswamy.com/wordpress/20...rescue-prompt/

Very useful! Now in my "Linux Log Book," It's allowed me to recover my Ubuntu 10.10 desktop and hopefully gain access to my other installed Distros; Fedora 15 and Centos 5. Installing the latter overwrote the MBR in the first place.

Cheers ED!

Play Bonny! :hattip: