I was convinced that the loop was unmounted since it seemed to logical to me... I was wrong... the squashfs is still mounted, so there is no surprise that /cdrom could not me umounted.
To umount /cdrom those two simple steps must added to live-installer: # umount /mnt # /target/sbin/losetup -d /dev/loop0 I'm using "/target/sbin/losetup" since I did not found other losetup in $PATH or as busybox applet, but I'm confident that live-installer maintainer will probably invoke something better. -- ESC:wq -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org