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Old 10-26-2010, 11:34 AM   #1
Registered: Oct 2006
Location: California, USA
Distribution: Mint 16, Lubuntu 14.04, Mythbuntu 14.04, Kubuntu 13.10, Xubuntu 10.04
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Can't unmount after I unplugged usb drive on accident


I accidentally unplugged my usb drive before unmounting it. In windows this is no big deal, so I'm used to that. However, I'm finding that in Kubuntu 10.04 this is a big deal.

Now I can't mount any other drives unless I use the command line. Also, I can't unmount anything, even if I mount it on the command line.

What do i do? I know a reboot will fix this, but if it happens again i will be right back at this point. It should not take a full reboot just to unmount a drive.

I have tried umount -l and umount -f and the terminal window just hangs.

Please let me know if this is a bug or if there is a fix for this.
Old 10-26-2010, 12:44 PM   #2
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Registered: Jan 2009
Location: "North Shore" Louisiana USA
Distribution: Mint-20.1 with Cinnamon
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Are you doing your umount commands using sudo or as a plain user. Unless you took special pains to permit plain user actions, any mount and unmount usually require sudo.

When something gets mounted, there is a file called mtab -- similar to fstab that tells everyone what is mounted now.
If sudo umount does not help, a reboot should clear the dead wood away.

Bonne chance,
~~~ 0;-Dan
Old 10-26-2010, 12:59 PM   #3
Registered: Oct 2006
Location: California, USA
Distribution: Mint 16, Lubuntu 14.04, Mythbuntu 14.04, Kubuntu 13.10, Xubuntu 10.04
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Hello, this is a vanilla kubuntu install. So no pains were taken to get mounting going. For example, I use sudo mount /dev/sdb1 /media/test to mount and sudo umount /dev/sdb1 to unmount.

But usually, I go into dolphin file manager and click on the hard drive that appears on the left hand column. To unmount i right click on it and select unmount.

The issue is that no matter which method I use to mount the drive, if you unplug the drive before unmounting, all mounting functions work, but no unmounting functions work.

So to be forced to reboot just because I unplugged a drive a little early is just unacceptable. Especially since this has never been an issue in windows going back to windows 95. I would think that there should be a simple solution for ubuntu/kubuntu/all linux users. Or could this really be the way it was designed? What if I'm running a server and can't reboot often. How would someone in the situation handle this?


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