A mount point already exists for the given filesystem ?

Ohh - had that one too.

I gave up on finding a clean way of doing it - forced a mount via a Cron Job in the GUI: 'mount -a'
Ended up with adding the command to /etc/rc.local.

The USB disks have given me all sorts of challenges:
- two disks swapped place, suddently I had my fileshares crossed,
- once I forgot to mount them, and ended up connecting to share (that couldn't be there), copied
a bunch of files, that filled up my root disk.

The clean way to mount them is apparently to use UUID's.

The lesson I learned is:
"Google, test, and ask - eventually it's going to work".

Update 25 november:
This is not ment as a bad remark concerning OMV - I enjoy playing with it.
It just shows that I have to find out more about mounts, uuid's etc.

Help,

plugged in an USB 3.0 HDD into OMV-Server and mounted one ntfs-Partition in web administration interface.
After autoshutdown and reboot i can't mount the drive anymore.

Click on Mount /dev/sdf1 or sdf2 results in:
Error-Message Popup in OMV:
The configuration object is not unique: A mount point already exists for the given filesystem
Error #3005:
exception 'OMVException' with message 'The configuration object is not unique: A mount point already exists for the given filesystem' in /var/www/openmediavault/rpc/filesystemmgmt.inc:675
Stack trace:
#0 [internal function]: FileSystemMgmtRpc->mount(Array)
#1 /usr/share/php/openmediavault/rpc.inc(265): call_user_func_array(Array, Array)
#2 /usr/share/php/openmediavault/rpc.inc(98): OMVRpc::exec('FileSystemMgmt', 'mount', Array)
#3 /var/www/openmediavault/rpc.php(44): OMVJsonRpcServer->handle()
#4 {main}

Waht can i do?

I've loged inas root via ssh, and searched for the uuid in /etc/openmediavault/config.xml.there i've deleted the whole part beteen <share> and <\share> including this markers. After that I was able to mount the usb-drive again. Perhaps you have to do this in asimilar way at other points of config.xml.

I'm doing a simple "mount -a" via Terminal and after unmount/mount over web admin all is fine again.
Seems to be a bug when OMV goes to sleep over autostutdown plugin and USB-drive stays connected and mounted.

'mount' sounds a problem for OMV..