Arch Linux

1. The init script always returns success, even if mongodb fails to start correctly. To reproduce, set dbpath in /etc/mongodb.conf to something bogus, or something the mongodb user doesn't have permissions on, and run the script.
2. The init script has a messy su -> bash -> mongod call chain, which is totally unnecessary. Use --fork instead of "/bin/bash .. &". It looks like the reason this is needed is due to the user having a shell of /bin/false; the user should have a shell of /bin/bash instead since they are not allowed as a login user anyway.
3. Instead of redirection of output, use "--logpath /var/log/mongodb/mongod.log --logappend", and don't suppress any stderr output of mongod. The log has to be in a subdirectory with mongodb user permissions.
4. "/var/state/mongodb" is very odd as a default dbpath. /var/state/ is not in the FHS (http://www.pathname.com/fhs/pub/fhs-2.3.html), this should be "/var/lib/mongodb".
5. Never ever stop a daemon. Ever.
6. Install messages are annoying, be brief and don't show them on upgrade if unnecessary.

Patch attached for all of this. Unfortunately it isn't all perfectly backward compatible, but adjusting shouldn't be too tough for existing users (dbpath change, logpath change + permissions).