* Rebooting in rescue mode allows to manually :
** run mount -avv
** dmesg | tail, see the problem about x-gvfs-show
** remount / read-write
** edit /etc/fstab, remove ",x-gvfs-show", save
* reboot again, problem fixed
This is a serious bug : human user does not expect to make its system unbootable just by following graphical tools and "disabling automatic mount option" for a data partitions (without changing any other settings).
(Continuing from comment above)
* (one may see that it also reproduces bug https:/ /bugs.launchpad .net/ubuntu/ +source/ unity/+ bug/1010858 see comment 1010858#13)
* reboot. *System is now unbootable*. It stays on aubergine background, no hint.
* Rebooting in rescue mode allows to manually :
** run mount -avv
** dmesg | tail, see the problem about x-gvfs-show
** remount / read-write
** edit /etc/fstab, remove ",x-gvfs-show", save
* reboot again, problem fixed
This is a serious bug : human user does not expect to make its system unbootable just by following graphical tools and "disabling automatic mount option" for a data partitions (without changing any other settings).