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Old 01-09-2008, 02:11 PM   #1
alan_ri
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GRUB error 15,can`t boot


Need a quick answer,any help more then welcome!
After installing DSL grub want boot,always showing error 15.I got Window$,Ubuntu,openSUSE and XEN with openSUSE.I have installed DSL on a hda8 which is Ubuntu partition,which is main OS.I have tried to run openSUSE live cd,for reinstall,but it want start,showing "error during installation".

Last edited by alan_ri; 02-07-2008 at 02:02 AM.
 
Old 01-09-2008, 02:27 PM   #2
b0uncer
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You could have searched a little first. For example this as a start:

http://www.linuxquestions.org/questi...to-fix-547773/
 
Old 01-09-2008, 03:10 PM   #3
alan_ri
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I've searched,one more time,now,but I can't fix it.If this error means "file not found",which file I had to look for and where to put it?

Last edited by alan_ri; 07-03-2008 at 11:03 PM. Reason: grammar
 
Old 01-09-2008, 04:08 PM   #4
Larry Webb
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If you need step by step instructions, you will need to post your grub/menu.lst and the distro where it resides and your fdisk -ls
 
Old 01-09-2008, 04:18 PM   #5
alan_ri
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The problem is that I'm now using DSL live cd and it's the only way at moment I can do anything,fdisk output doesn't show anything and menu.lst isn't in boot...

Last edited by alan_ri; 07-03-2008 at 11:13 PM. Reason: grammar
 
Old 01-09-2008, 07:32 PM   #6
syg00
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Quote:
Originally Posted by alan_ri View Post
I got Window$,Ubuntu,openSUSE and XEN with SUSE,I have installed DSL on a hda8 which is Ubuntu partition,which is main OS.
So you over-wrote Ubuntu ??? - and it was the grub owning partition ???
If the above is so, did you install grub to the MBR with the DSL install ???.
Quote:
fdisk output doesn`t show nothing and menu.ist isnt in boot...
Try issuing all commands as root - or use sudo if DSL liveCD supports that. As for menu.lst, look at the mount-point for the hard disk - the /boot is for the liveCD itself.
 
Old 01-10-2008, 08:24 AM   #7
alan_ri
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Thanks for the help syg00,I tried to the something fast(install DSL),and I deleted Ubuntu and also let DSL grub to boot from MBR.I didn't know that I deleted Ubuntu,but I did know that I let the DSL grub to boot from MBR and I still don't know why it didn't,but there was some warning about it in the welcome page of DSL.Anyway I'm going to use DSL only as a live cd,because I don't know why grub want boot on my sistem.There was some error messages during the installation of DSL(something about relocating),maybe that was the issue.Error 15 means "file not found"and that is a file for the grub to boot,I think.I would like if somebody can explain that to me,where is that file?,can you make that file while on live cd?I tryed to reinstall openSUSE,but the live cd was just showing me the "error during the installation".Then I tried with the Ubuntu live cd and everything was just perfect.I still got openSUSE on hda6 and it works, so I can't understand way the live cd didn't worked.
Ubuntu rocks!!!

Last edited by alan_ri; 07-03-2008 at 11:16 PM. Reason: grammar
 
Old 01-10-2008, 09:03 AM   #8
b0uncer
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Well, the menu.lst file (GRUB's configuration file on disk) should be in the /boot partition you use. Nowadays harddisk partitions are named (device file names) as sda1, sda2, sda3 etc., in the older versions IDE disks were hda1, hda2, hda3 etc. and SCSI disks/usb devices were sda1, sda2, sda3, ... So first of all you could check what's wrong with the /boot partition.
Code:
ls /dev/?da?
should print all sdaN/hdaN files, one of them which should be the primary harddisk's /boot partition. If you don't know which, you can use
Code:
fdisk -l
as root to list partition information - /boot is usually fairly small, if it's a separate partition, but if it's not a separate partition, then it's in the root partition (/) which is bigger - usually a few gigabytes nowadays. Then you can start mounting the partitions one by one, checking which one of them was mounted as /boot by the system (it contains directory 'grub'; mounting is usually done as root or with sudo):
Code:
mount /dev/sda1 /mnt
ls /mnt
umount /mnt
Repeat that to the sda1...sdan/hda1...hdan (where n is the number of the last partition you think could be /boot) and see which one of them contains 'grub' directory. When found, cd into the grub directory there and see if the file 'menu.lst' is there. If not, you can either manually write it, or in a chroot environment run grub-update which creates it for you.

But if you have done reinstalls already, it's unlikely that the /boot partition exists anymore. Easier method would be to do a reinstallation of the Linux distribution(s) you prefer, carefully following the installation procedure, and if some errors pop up, write them down in case of trouble later on.
 
Old 01-10-2008, 11:07 AM   #9
alan_ri
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Thumbs up

Thank's bOuncer,you've been very helpful.Yes,I have done the reinastall,but I will try what you've suggested,because,it's really important to know this things if I'm going to have many OSes on one comp(and I'am planing to install one more very soon).

Last edited by alan_ri; 07-03-2008 at 11:05 PM. Reason: grammar
 
  


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