[SOLVED] unknown filesystem type 'vboxsf'

When i try to share folder between host and guest (ubuntu) in virtual box, i install guest additions, then i open terminal, and type
 sudo mount -t vboxsf share /home/mada/share
But i get error 'uknown filesystem type vboxsf', to solve this, type in the terminal
 sudo chmod 777 /home/mada/ubuntu \
press enter twice, then
 sudo apt-get install virtualbox-ose-guest-utils
After installation complete, type the mount again, and it worked for me.
Note: my shared folder name in host is 'share', same with the guest shared folder name
25 Responses
  1. Anonymous Says:

    thanks!! it works perfectly for me^^

  2. Anonymous Says:

    Thank you very much , I have passe long time fighting with this problem.

  3. borazslo Says:

    yeah! it was my solution too. thx!!!

  4. Mohit Arora Says:

    thanks a lot .. It I was struggling for around 2 hrs

  5. Anonymous Says:

    Assuming "mada" is you user name, is it mandatory to have a "ubuntu" folder inside "mada" for the chmod command?

    Does not work for me.

  6. Anonymous Says:

    you did it man!! thank you & keep it up!

  7. Anonymous Says:


  8. ajs Says:

    Thanks! I figure out that it is a permission problem!

  9. Anonymous Says:

    Thanks a lot....Very helpful....

  10. phuong vo Says:

    thanks so much.....^_^

  11. Anonymous Says:

    Right-Ctrl+C should get you the Devices Menu back!

  12. Anonymous Says:

    Thank you you're helping an engineer

  13. Berti Says:

    Awesome! Saved my day!

  14. Anonymous Says:


  15. Anonymous Says:

    Thank you!!!

  16. Anonymous Says:

    amazing ! This saved a ton of my time.

  17. Anonymous Says:

    Thanks It worked for me. Prabhu

  18. Varal Says:

    Updating for Ubuntu 13.10:

    1) Type this:
    sudo mkdir /home/yourloginname/share
    sudo chmod 777 /home/yourloginname/share

    2) Install guest additions package:
    sudo apt-get install virtualbox-guest-utils

    3) Try to mount:
    sudo mount -t vboxsf share /home/yourloginname/share

  19. Varal Says:

    Additionally, reboot you VM by typing:
    4) sudo init 0

  20. Anonymous Says:

    Great stuff !!! Spent 2 days on this problem and only this one was the life saver - thanks heaps

  21. U r welcome,i already forgot about ubuntu, lol

  22. Anonymous Says:

    thanks, works great :))

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