
Here I’m going to do it via a single command: There are a few ways to add an user to a group. All you need to do is add your user into this group.

The shared folder belongs to vboxsf group in the guest. You do not have permissions necessary to view the contents of “xxx” Or it prompts permission issue while accessing from the left pane in file manager: GDBus.Error.Failed: Unix process subject does not have uid set. And it pops up an error dialog when you trying to open it: However, after you created one, the shared folder is marked with cross and lock icons. Shared Folders is an useful feature for file sync between Virtualbox host and guest OSes. I want to avoid to start over the config just for not being able to share files and copy text between host and guest OS.Running Ubuntu as virtual machine via VirtualBox? You may encounter permission issue to access the shared folder between host and guest. I put a lot of effort into setting up my guest OS and configuring everything. This installed them, but I cannot find a way to access the files on my host OS :( I also made sure that my user is added to the vboxsf group What did work be to install them using apt-get: sudo apt-get install virtualbox-guest-additions-iso

I could run the ISO from the mounted drive, but this also gave me an issue:īecause it was still mounted I could install it from there but it gave me errors. I already tried to remove the Optical Drive from the Virtual Box and to read it, nothing helped. I tried to restart the Guest OS, update the Guest Additions from an ISO image (this also gave troubles): So the files from my C:/LocalData/Share should be available in /media/sf_Share/ but this is not the case :( I installed the guest additions (5.2.8_KernelUbuntu r120774):

My shared folder functionality and the ClipBoard mode used to work, but a few days ago, without an update from any component, the shared folder on my Guest OS was empty, while it was containing a lot of files on my host OS.

I have a Virtual Box GUI Version 5.1.14r112924 (Qt5.6.2) with a Guest OS Ubuntu-16.04.2 (64-bit) and as a host OS Windows 7 Enterprise.
