You could check the udev version on the CD: dpkg -l udev And then upgrade (or downgrade) the package from within chroot: apt-get install udev=<version> BTW, you haven't been running earlier versions of Debian on your Lombard? I'm asking, because I have big problems on my Lombard: if I have either hald or udisks-daemon running, the computer practically stops after some minutes. This applies to both Lenny and Squeeze. Risto