Disks 3.4.1 (aka palimpsest, gnome-disk-utility, or Disk Utility) underwent a huge UI change, and I can't find something comparable to the old "check filesystem" button in its UI. Where can I find this?
Note: Users of Ubuntu 12.04 Precise will not experience this issue because Disks 3.4.1 is only available via PPA or in the next Ubuntu release, 12.10 Quantal.
Disks 3.3+ is a complete rewrite of the old
gnome-disk-utility(aka Palimpsest). It no longer appears to include an option to check filesystems:
Use GParted to check filesystems instead. Select the partition you want to check, click on Partition...Check in the menu:
The operation will be added to the list. Click on the Apply button to start the check: