Re: [Libguestfs] [PATCH 3/3] Shut down the appliance cleanly

When guestfsd exits, or the user exits the virt-rescue shell, the init script exits which causes the kernel to panic. This is really a functional issue, as all useful work is done by this point. However, it does cause virt-rescue to display an unsightly error message. This patch adds a new utility, guestfs_poweroff, to the appliance. This powers off (reboots really: read the comment) the appliance, preventing init from exiting, and therefore the kernel panic. We also ignore errors returned by launch() in virt-rescue. launch() expects guestfsd to start, which it never does in virt-rescue, so it always returns an error about the appliance shutting down unexpectedly.