Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Gaffers]

This is a continuation of my thread about my lappy killing hard drives.

I booted from a live disk yesterday and I could mount and read/write on to the disk. All the files were there too.  I think the grub mst be buggered but any grub command I tried didn't work.

I am calling on the OOF community for your expertese.  I only get an hour of internet access a day or 20mb (whichever is reached first) and the connection is poor and slow.

I could do with your help, as aways thanks in advance

[TheBoy]

could be a million and one things, from bootsector to disk corruption. Is grub in bootsector, or 1st partition?

[dbug]

could be a million and one things, from bootsector to disk corruption. Is grub in bootsector, or 1st partition?

 

[Kevin Wood]

Boot config tends to be pretty complex in Linuces these days but you'll normally find the config for grub spread around /boot/grub, /etc/grub and /etc/grub.d possibly.

Normally you can recover it by calling grub to rewrite itself into the MBR and wherever else it lives, using the original config on your non-bootable system.

Have a look at the man pages for grub-install and grub-mkconfig for a start.

If it comes to grub-mkconfig you will have to point it where your original /boot partition has ended up mounted so it can find the original grub.cfg or whatever.

If it's frequently getting trashed it might be a sign that wherever it's living on the hard drive is getting overwritten by something else, e.g. it's also a block allocated to a filesystem / swap.

EDIT: once you do get it to boot, see if there's an update-grub script and run it as root. This will make double sure that you have the correct grub config back.