I was installing Arch on RaspberryPi and tried disabling root (since I had seen it done on other distros). Not long after I was fiddling with LVM. When I rebo

I was installing Arch on RaspberryPi and tried disabling root (since I had seen it done on other distros). Not long after I was fiddling with LVM. When I rebooted it halted on my fstab which couldn't find my VolumeGroups and required my root password to continue booting. I ended up popping out the drive and mounting it on another box, changed my fstab to noauto, got things to boot and reenabled root. I figure distros that disable root are setup for these corner-cases where root is required. The other obvious case is if you're using LDAP and the network is down. Maybe I haven't looked in the right places, but I haven't heard these things discussed.