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-   -   how to troubleshoot GRUB Issue? (https://www.linuxquestions.org/questions/linux-newbie-8/how-to-troubleshoot-grub-issue-713004/)

your_shadow03 03-19-2009 10:56 PM

how to troubleshoot GRUB Issue?
 
I find a lot number of GRUB 17, Errror GRUB Loading, Stage 1.5 Error etc..
Now I need all your suggestion to What Should Be the Best way to get rid of such Error? Is it correct to Keep Knoppix or any Linux LiveCD which can do everything to bring the system Back safely.Sometimes it happens that Data is critical and we need to be on safe side.
Can yu people recommend some Tools which will do Troubleshooting on wasy steps without any data loss.
I heard some people saying First Take BackUP..but how can we take backup if system is remote and we cant do anything being physical there?
What are the best possibilties to bring back system?

chrism01 03-19-2009 11:47 PM

Its tricky to tell from your post.
If the system fails to come up at all, you'll need physical hands on to fix it.

For RHEL/Fedora
If it manages to come up in spite of the errors, then you could try to check the file /boot/grub/grub.conf (text file) and look at what its calling.
Fixes include

/sbin/grub-install <boot-device>

OR (using grub itself)

grub
grub> root (hd0,0)
grub> setup (hd0)
grub> quit

NB grub counts disks and partitions from 0 (zero), so adjust accordingly.

Obviously backup as much as you can first using rsync or scp etc.

hurry_hui 03-20-2009 09:37 PM

From grub manual: Error 17 means cannot mount selected partition. Partition requested exist, but filesystem type is unknown to grub. By the way not all livecd used grub, only some. U can check fs by typing on grub prompt
Grub> geometry [your hdd]

widget 03-20-2009 11:51 PM

I think it would be a great help if you would give a few more details of your setup.

billymayday 03-20-2009 11:53 PM

This link may help

http://www.linuxselfhelp.com/gnu/gru...r/grub_13.html


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