Volume Icons do not appear on Desktop
Hi
I have several external Harddrives and due to severe problems with the internal Harddrive and also with a external one at the same time I decided to split System, Applications (3rd pary) and Data on my Mac. Due to the mentioned problems I have four external drives with more than one partition. With a Startup AppleScript I unmount the unused Partitions (diskutil umount volume_name). Works fine, but since some days some Volume Icons do not appear on the desktop even they are mounted. Even all Volume Icons of all Partitions of a Harddisk could not displayed on the Desktop.
the Lack of Display on the Display changes form Hard drive to hard drive. There is no logic.
I can open a folder with «Go to ... -> Go to folder...». In the Finder Window with target «/Volumes/» the Volume Icons appears, but not on the Desktop.
Is this a bug in OS X (Mavericks [only])? My Script and the display of the Volume Icons did work with 10.9.1 but the Problem started with it. After Update to 10.9.2 the same problem.
Any hints or help?
Thanks for your attention
Hans from Zurich
Mac mini, Mac OS X (10.6.8)