Description of problem:

Try to use a mock shell on new configuration:

# mock -r fedora-9-i386 --shell
INFO: mock.py version 0.9.16 starting...
State Changed: init plugins
State Changed: start
State Changed: lock buildroot
ERROR: Command failed. See logs for output.
 # mount -n -t proc   mock_chroot_proc   /var/lib/mock/fedora-9-i386/root/proc

The problem appears to be that 'mock --init' must be done before 'mock --shell'.  In the above example, /var/lib/mock/fedora-9-i386 doesn't exist until the 'mock --init' is run.

At minimum, a better error message should be generated.

Version-Release number of selected component (if applicable):

mock-0.9.16-1.fc11

How reproducible:

Every time (until 'mock --init' has been run).