Recovery mode does *not* ask for a root password on Ubuntu. It never has. If you don't want a partition to mount on boot, it should be marked "noauto" in the fstab options. There is no way for init to know if the partition is necessary for boot or not, so the safest thing is for it to simply cease trying to boot (rather than ending up in an unusable state, where /usr or /var is missing). And that is why it throws you to a root prompt: so you can correct your fstab.
This isn't a bug. ** Changed in: sysvinit (Ubuntu) Status: New => Invalid -- boot stops if partition absent https://bugs.launchpad.net/bugs/66394 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs