debian installer raises error about /mnt/media
Created by: dcbaker
I'm leaving this as a reminder (apparently I can't file bugs against my clone of your repo).
Basically this bug boils down to the line in debian_installer/jenkins.cfg:
d-i partman/early_command string umount /media
which always tries to unmount /media, really this needs to check to see if /media is mounted, and only try to unmount if /media is actually mounted.