On 18 October 2012 20:30, John Woodard mail@johnwoodard.co.uk wrote:
When I replaced the superblock using advice from http://linuxexpresso.wordpress.com/2010/03/31/repair-a-broken-ext4-superbloc... everything worked, I had a desktop, networking was okay etc.
Cant see anything immediately wrong...
It's looking way above my head but I ought to at least give it a go. I have full access with a live cd what is the best place to start?
It's fairly complicated. :-( Depends really how important your files were to you and how much effort and time you want to spend.
You want to check the partition entries at offset 446 bytes into the MBR:
https://en.wikipedia.org/wiki/Master_boot_record#Sector_layout
If it's all zeros... then it would seem you lost your partitions. You will want to make sure any data in that section specifies sensible values for your hard drive and partitions.
Regards, Srdjan