While it's usual for short messages to have no end punctuation, and it's quite reasonable to say "your disk drives" since "your" means possession (not ownership), the comma splice is annoying. I suggest either the version suggested by Jonathan or the following (which I prefer due to its greater simplicity): "Your drives[1] are being checked for errors; this may take some time".
[1] The original message refers to disk drives, but I presume that there isn't a separate message for solid-state drives. -- Disk check message is grammatically incorrect https://bugs.launchpad.net/bugs/572016 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
