I use Shotwell to manage my picture library. The pictures are all on a fat32 partition, as I want to be able to access them as well from Windows.
With the fresh installation of Ubuntu 12.04 I always had problems when opening the library in Shotwell:
All of my pictures disappeared one after another, because appearantly Shotwell thought they were not available. I had to manually click on my fat32 partition and I think Ubuntu mounted it then. I had to reopen Shotwell and it would show the pictures again - but of course it always took some time to build the database and thumbnails.
I tried to change my fstab to mount the partition on bootup with the following entry, but now I get problems at startup:
/dev/sda2 /media/pictures vfat rw,user,exec,umask=000 0 0
What could I try to get rid of that problem? Do I have to mount the partition permanently? What is the problem with my fstab