Tuesday, June 5, 2018

How to Automount a Virtualbox Shared Folder at Startup

To always mount a Virtual Box "shared folder" on booting an Ubuntu guest we have two options. It is up to personal preference which option works best in our setting.

1. Mount with fstab

To mount a shared folder using the vboxsf filesystem provided with Guest Additions we first need to make sure prerequisites are met. Then we may put the following line in our etc/fstab file:

<name_of_share>   /path/to/mountpoint   vboxsf   <options>  0   0

Replace name_of_share and /path/to/mountpoint with your individual setup (the directory for the mountpoint has to be created first). See the manpage for mount <options>. One possibility is to mount with defaults, or to give specific mount options (e.g. rw, suid, exec, auto, users).

On some systems the vboxsf kernel module is not yet loaded at the time fstab is read on boot. It may then help to append the vboxsf kernel module to /etc/modules.

Some systems may need option comment=systemd.automount in their fstab entry (source).

2. Mount with Virtual Box "automatic mounting":

In recent releases of Virtual Box we can also automatically mount shared folders on creation:

After a reboot of the guest this shared folder will be mounted to the guest directory /media/<username>/sf_<name_of_share> accessible to all users who had been made member of the group vboxsf.

Source: AskUbuntu


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