The bug exposed a second misbehaviour : building the initramfs fails because cpio can't read some subdirectories of /sys and /proc.
FAKECHROOT_EXCLUDE_PATH="/dev:/proc:/sys" causes the whole contents of the /dev, /proc, /sys directories on the build machine to be added to the archive instead of the mere mountpoints. It probably makes sense that the unprivileged user has no read permission from some of these subdirectories. The setting of FAKECHROOT_EXCLUDE_PATH should be disabled somehow when building rootfs.cgz. Regards, JH Chatenet -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org