This problem remains in Ubuntu 14.04. Pressing F1 in the Disks window now brings up some help (yay!), but GNOME Help » Hardware » Disks & storage » "Manage volumes and partitions" is light on details and says nothing about these icon badges.
Besides giving these badges a tooltip, the panel underneath showing partition details (e.g. Size, Device, Partition Type, Contents) should also show the star and play triangle icons, each followed by the textual information that the icon is supposed to convey. My details: Package: gnome-disk-utility 3.10.0-1ubuntu3 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 CurrentDesktop: Unity ** Attachment added: "what do the star and play triangle mean?!" https://bugs.launchpad.net/ubuntu/+source/gnome-disk-utility/+bug/1165437/+attachment/4127843/+files/2014-06-08%20gnome-disks%20mystery%20icon%20badgets.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-disk-utility in Ubuntu. https://bugs.launchpad.net/bugs/1165437 Title: Mysterious, unlabeled icons on disk volumes Status in “gnome-disk-utility” package in Ubuntu: Confirmed Bug description: Just one of the fourteen disk volumes on my machine is displayed with a star and a triangle in the lower-right corner (screenshot attached). These icons are unlabeled, do not have hover text, are not self- explanatory, and do not appear to respond to left or right mouse clicks. Furthermore, there is no sign of a Help menu within the Disks window or application menu. I have no idea what these icons mean. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: gnome-disk-utility 3.6.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6 Uname: Linux 3.5.0-26-generic x86_64 NonfreeKernelModules: nvidia zfs zcommon znvpair zavl zunicode ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 Date: Sat Apr 6 08:46:11 2013 ExecutablePath: /usr/bin/gnome-disks InstallationDate: Installed on 2012-09-29 (188 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120926) MarkForUpload: True SourcePackage: gnome-disk-utility UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-disk-utility/+bug/1165437/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp