Univention Bugzilla – Bug 37202
Document mount behaviour
Last modified: 2014-12-10 09:59:50 CET
+++ This bug was initially created as a clone of Bug #36717 +++ This also applies to UCC 2.0 +++ This bug was initially created as a clone of Bug #36716 +++ When plugging in a USB pendrive the partitions are mounted to /run/drives and then shown in drive Z: in the remote session: > root@ucc-veriton:~# ls -l /run/drives/ > insgesamt 4 > drwxr-xr-x 2 root root 40 Nov 14 16:27 usbdisk-sdb > drwxrwxrwx 1 root root 4096 Nov 14 16:27 usbdisk-sdb1 If one unplugs the USB pendrive, sdb1 is removed, but sdb is not: root@ucc-veriton:~# ls -l /run/drives/ insgesamt 0 drwxr-xr-x 2 root root 40 Nov 14 16:27 usbdisk-sdb Thus, sdb is also still visible in the remote session, although the pendrive is not available anymore (see attached screenshot). I don't see the necessity to mount sdb in the first place: it's always empty and the needed data partitions are always followed by a digit (e.g. sdb1). For a customer I adapted the blacklisting for ram and loop devices to also blacklist exact matches of 'sda', 'sdb', 'sdc' ... (Ticket#2014110321000159) I have seen this in Citrix XenApp sessions where sdb doesn't seem to disappear at all and in RDP sessions, where sdb disappeared after a couple if minutes. I used at least two different USB pen drives and different combinations of fat32, ntfs, formatted with gparted and formatted with windows.
This should be mentioned in the manual.
Documented in revision 56573
The new paragraph is -> Verified
http://docs.univention.de/ucc-manual-2.0.html#hardware:usbthin