After doing an upgrade from jaunty, I had the same problems as Bernd Schubert
"It hangs here after writing "fsck from until-linux 2.16"
I tracked it down to my /boot partition being ext2 ... because I noticed that karmic could not automatically identify the ext2 partition type, as it should. Switching /boot to ext3, my machine now boots.
After doing an upgrade from jaunty, I had the same problems as Bernd Schubert
"It hangs here after writing "fsck from until-linux 2.16"
I tracked it down to my /boot partition being ext2 ... because I noticed that karmic could not automatically identify the ext2 partition type, as it should. Switching /boot to ext3, my machine now boots.