Broken ubuntu installation. Not booting, please help

Question

My local ubuntu 7.10 dev server was unresponsive the other day so I rebooted it and now I can't boot into it.

I can boot into the Live CD and mount my hdd so I can have a look at the logs and what not. /var/log/messages has a lot of entries like this;

jun 9 09:32:55 mccoy -- MARK --

Then it has a few like this;

jun 9 09:15:30 mccoy kernel [92923832.32322332] res 09 90 989 78 67 56 Emask 0x2 (HSM Violation) [Not exact numbers]

When I boot, I get to a busybox shell after a message saying /dev/md2 doesn't exist.

I would be really appreciative for any help, this box runs a few things for the office and they're all down atm.

Thanks in advance!

Answer 1

get into your command line when it boots run

mdadm --assemble --scan this should scan for parts of raid drives and allow the md device to mount

then check by doing

mdadm --detail /dev/md2

you can then check

cat /proc/mdstat

reboot

YOU SHOULD post what type of md you have and level, how many disks too?

Answer 2

Sounds like you've got a md-raid that's failing to reassemble itself for root. get to that busybox shell and look in /proc/md* and look up how to use the mdadm command to try and reconstitute your array.