Home / server / Questions / 23041
In Process
Christian
Asked: 2009-06-10 16:51:03 +0800 CST

Broken ubuntu installation doesnt booting

  • 772

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.

ubuntu boot

2 Answers

  1. Get into your command line when it boots, and 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?

    • 3

  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.

    • 1