Comment 20 for bug 439604

Documented at <https://wiki.ubuntu.com/KarmicKoala/ReleaseNotes#Login%20screen%20presented%20before%20optional%20filesystems%20are%20mounted>:

With the new upstart-based boot process in Ubuntu 9.10, the X server will be started, and the login screen launched, as soon as the core filesystems are available. This means that optional filesystems, mounted at locations not required for the system to boot, may not be mounted yet at login time, and may even fail to mount in the case of a filesystem check error.

Users who prefer the previous behavior of waiting for all filesystems to be mounted before launching the login screen can add the bootwait option to these filesystems in /etc/fstab. (439604)