4

The following commands are how I create a RAMDisk on Ubuntu 12.04 LTS:

sudo mkdir -p /media/ramdisk
sudo mount -t tmpfs -o size=1024M tmpfs /media/ramdisk

But now I have no idea to eject it.

These commands are what I've tried but not work:

sudo eject /media/ramdisk
sudo umount /media/ramdisk

How to eject RAMDisk properly?

closed as unclear what you're asking by psusi, user117103, falconer, Maythux, Avinash Raj Feb 14 '14 at 9:19

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  • 1
    Define "don't work". – psusi Feb 13 '14 at 1:20
11

The inverse of sudo mount -t tmpfs tmpfs /media/ramdisk is sudo umount /media/ramdisk.

The last command will only succeed if no application is using /media/ramdisk though. You can use sudo lsof -n /media/ramdisk to find out which programs are blocking the mount point.

  • Well, it popped up this warning: lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/username/.gvfs Output information may be incomplete. – Kevin Dong Feb 12 '14 at 11:23
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    That's non-fatal, what make you think that /media/ramdisk has not been unmounted? What does mountpoint /media/ramdisk tell you? By the way, "unmounting" leaves the directory behind, so you still have to remove the directory after unmounting: sudo rmdir /media/ramdisk – Lekensteyn Feb 12 '14 at 11:40

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