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I have a mysterious volume mounted on my desktop that I can't seem to forcibly unmount. I've tried using umount and also diskutil, but it seems to automatically remount itself. I've copied my hdd with Time Machine, and copied it onto a new computer, and it also has the drive mounted on it. It's not pointing to anything and I can't open it, nor can I forcibily remove it by hand with rm -Rf.

Any ideas? I noticed this problem after I upgraded to Mountain Lion from Lion. It causes problems because when I try to select a file using the built in Finder dialog box, it freezes for a few minutes because it tries to cache or read into the "media" mounted volume.

Picture of my desktop

I added a picture so you guys can see what I'm talking about. It's a media volume that is mounted on my desktop, but I can't get it to go away and it really slows down my finder when I use it to select items.

Oliver Salzburg
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Allen
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  • Can you post the output of the 'mount' command? – Matteo Sep 03 '12 at 08:55
  • Type mount and the path of the folder? What command you want me to run? – Allen Sep 03 '12 at 13:53
  • I tried running diskutil umount but it doesn't work: diskutil umount ./media Unmount successful for ./media But the volume is still there. – Allen Sep 03 '12 at 14:06
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    just "mount" without parameters. It should print the list of mounted volumes – Matteo Sep 03 '12 at 14:58
  • Hmm, it actually showed up, but not sure what it means: map -static on /Users/allen/Desktop/media (autofs, automounted, nobrowse) – Allen Sep 03 '12 at 22:35

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finally got that mofo deleted! Thanks much for your help, Matteo! If you would have put up an answer, I would have give you the credit. All because of the mount command telling me some info, I did some google search. I had to open up Directory Utility, and I went to mounts and found a mount in there. I deleted that record and bam! The folder appeared back on my system and I could delete it!

Here is a post that relates to mine: Permanently map a network drive on Mac OS X Leopard

Community
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Allen
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  1. Open up terminal

  2. Type in diskutil list

This should give you a brief overview of your devices

Here you may find more information about your mystery device

  1. With it, there is a name. e.g Disk1, Disk7 etc. Note the one for your mystery device.

  2. Type in diskutil eject /dev/DiskX

X being the number asigned to the device you want to remove

Sathyajith Bhat
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Caitlann Lloyd
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  • I don't see anything like that. I just se a table like this: $ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk0 1: EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 419.0 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data BOOTCAMP 80.2 GB disk0s4 I just see /dev/disk0 – Allen Sep 03 '12 at 14:02