View Full Version : [ubuntu] Boot problem ALERT! /dev/mapper

March 11th, 2009, 01:49 AM
First thing, this is my first installation of Ubuntu, so be gentle.

New installation of Ubuntu Server 8.10 on Intel Server with embedded raid controller.

Two 80 Gb drives raid 1 for the Ubuntu.

The installation appears to be successful.

At boot I get the following:
Gave up waiting for root device. Common problems:
-Boot args (cat /proc/cmdline)
- check rootdelay=
- check root=
-Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/mapper/ddf1_4c........(numbers/letters) does not exist. Dropping to a shell!


I am assuming that it can't find the root (or boot) drive.

Please guide me oh wise Ubuntu Gods.

-A bit more info

If I type exit at the (initramfs) prompt the system finishes the boot.


(Also if you ask for any files or output I will need directions)

March 12th, 2009, 12:22 AM
Could not get anything to work. Searched threads, tried several things. No response to this thread so I went another route.

What I did was follow the instruction on this page http://kuparinen.org/martti/comp/ubuntu/en/raid.html. I setup a Software RAID configuration. Used the Alternate Installation CD.

Works fine, I have even already installed Axigen mail server.