Comment 5 for bug 486944

brian@sys11:~/tmp/abc/heimdal-1.3.1.rc2$ ls -l /usr/bin/schroot
-rwsr-xr-x 1 root root 1031200 2010-01-17 10:08 /usr/bin/schroot
brian@sys11:~/tmp/abc/heimdal-1.3.1.rc2$ schroot -c sid
E: sid-8a87aa76-6bb2-4d92-b055-dcec95c12052: Failed to lock chroot: /var/lib/schroot/session/sid-8a87aa76-6bb2-4d92-b055-dcec95c12052: Failed to write session file: Permission denied
brian@sys11:~/tmp/abc/heimdal-1.3.1.rc2$ sudo chmod 777 /var/lib/schroot/session
brian@sys11:~/tmp/abc/heimdal-1.3.1.rc2$ schroot -c sid
E: 05lvm: File descriptor 4 left open
E: 05lvm: File descriptor 5 left open
E: 05lvm: File descriptor 9 left open
E: 05lvm: WARNING: Running as a non-root user. Functionality may be unavailable.
E: 05lvm: /dev/mapper/control: open failed: Permission denied
E: 05lvm: Failure to communicate with kernel device-mapper driver.
E: 05lvm: /dev/mapper/control: open failed: Permission denied
E: 05lvm: Failure to communicate with kernel device-mapper driver.
E: 05lvm: Incompatible libdevmapper 1.02.27 (2008-06-25)(compat) and kernel driver
E: sid-5607b79f-7734-4ec2-b346-46a150617ff7: Chroot setup failed: stage=setup-start

schroot might be setuid root, but it is acting very much like it isn't.