David Thomas Baker » Linux » Ubuntu - upgrade to Feisty - Device lookp failed

The error on tty1:

[ 80.143123 ] device-mapper: table: 254:5: linear: dm-linear: Device lookup failed
[ 81.289517 ] device-mapper: table: 254:5: linear: dm-linear: Device lookup failed 
etc...

Seems this error is due to the new kernel 2.6.22 after the Ubuntu upgrade

apt-get remove evms 

Thanks to: http://ubuntuforums.org/showthread.php?t=587450

If the errors just keep going press ctl+alt+delete and it seems to continue booting to a gui. Otherwise just reboot into the old kernel 2.6.20

also found that mdadm was installed when I wasn't useing any raid, this may have prompted the evms issue during upgrade - suggest doing an `apt-get remove mdadm` ONLY if you are not using raid.