Safely unmounting usb drives with knoppix

[don999]

Hi all,

It would always bother me to just unplug my flash drives under linux/knoppix without cleanly unmounting them. Under windows you have the "Safely remove devices" on the taskbar. So I did a bit of searching and if you use the command line:

udisks --detach /dev/sdg

where /dev/sdg is the location of the flash drive, it will be detached and powered down (assuming you haven't still got it mounted.)

[Werner P. Schulz]

You can also use right mouse click on the device within the left side of PCManFM.

[Capricorny]

Because I don't fully trust any file managers for such tasks, I normally use the command line, with mount/umount, and sync. That's of course old-fashioned and awkward, but it works safely. In particular, running sync can give some unexpected results when you just thought everything was written to disk already. It wasn't.

[Werner P. Schulz]

If you try to unmount an USB device within PCManFM as I described you'll get this message, if there are any jobs not finished.
Remount.png