Usefull tool

nahoR

Well-Known Member
Joined
Mar 29, 2010
Messages
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Location
Netherlands
My HP Servers OS drive decided to break. Luckily I had backups of my root fs, so I recreated the partitions on another drive and popped it in. Obviously it didn't boot.

Tried getting it going with the grub rescue console (which is very limited) but gave up after about an hour.
I followed a few threads on the web about recovering, set root, set prefix, insmod linux...

First it displayed file not found even though I can clearly see the file with ls
Fixed this by changing the prefix variable

But then I got this >symbol not found : 'grub_realidt'
...whatever that means

Anyways, I stumbled across Super Grub2 Disk (http://www.supergrubdisk.org/super-grub2-disk/). Awesome tool. It scans all the drives and shows all operating systems, even reads the grub.cfg files. With this I booted into my ubuntu and was able to reinstall grub. If only I knew about this I could have saved myself alot of time and effort...
 
You could also have chrooted into your system and reinstalled grub...
 
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