Fix the base URL for the OpenBSD mirror

Replace the local mirror with the public one.

Change-Id: I2ca5043dab4e924b891265ff6f67016c27d1a7a0
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Cleanup false errors/warnings

Modify a couple of commands so they do not report
falsely that they have failed.

Use echo to create /etc/hostname.* instead of
cat on a file that does not exist.

Comment out a command that seems to do nothing
but creates an error in the output.

Change-Id: I9b28725cef67dd7c445195014d224a2efeb2585c
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Exit on errors in chroot tasks

Watch for errors in chroot and exit early if they fail.

Change-Id: Ic88d1cac8d99f7b52ac03bf668e5ab1eafdda075
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge pull request #6 from dhellmann/misc-cleanup

Misc cleanup