Problem starting ubuntu after upgrade to 12.04

[IronSentinel]

hi all, first of all please edit/move this thread if not properly posted..

i just recently upgrade from 10.04 to 12.04 using upgrade manager and when i restarted there is a problem at startup right after the bios

the following message appears:

** (plymouthd:320): WARNING **: Cannot sapwn a message bus without a machine-id: Unable to load /var/lib/dbus/machine-id or /etc/machine-id: Failed to open file '/var/lib/dbus/machine-id': No such file or directory undevd[343]:specified group 'colord' unknown

The disk drive for / is not ready yet or not present.
Continue to wait, or Press S to skip mounting or M for manual recovery

(note that where it says plymouthd:320, it changes the number each time, 309, 320, etc)

if i press S:

Skipping / at user request
The disk drive for /tmp is not ready yet or not present.
Continue to wait, or Press S to skip mounting or M for manual recovery

now if i press M:

Filesystem check or mount failed.
A maintenance shell will now be started.
CONTROL-D will terminate this shell and continue booting after re-trying filesystems. Any further errors will be ignored
root@lucy-buntu:~#

so.. i tried searching in internet for this problem but nothing seems to work..

did anybody experiences something similar? any help?

thanks!

[weijun]

I got the same thing on my sony laptop. Any solution?

[darkod]

Can you boot the machine with the ubuntu cd in live mode, open terminal and post the output of:
sudo fdisk -l (small L)
sudo parted /dev/sda print all