In supported versions of Ubuntu, using the sudo command will grant elevated permissions for 15 minutes.. Standard user accounts are restricted from performing sensitive tasks, such as viewing the contents of the /root directory.

The sudo command is the preferred means to handle elevated permissions. Ok, so this is a known problem. $ sudo adduser To see the options for adding a user try the man command. Go to Shared Folders section.

$ man adduser. Tested on Ubuntu Server 16.04.3 LTS (Xenial Xerus) Steps: Open VirtualBox. 278 @white_aspara25. NOTE: do not use the useradd command.

The following ‘vboxsf’ is the usergroup VirtualBox creates to share folders (I believe vboxsf stands for VirtualBoxSharedFolders).

-a is to append, and this expects a username, so [yourusernamehere] should be the name of your user … (instead of myuser,admin, list the exact list of groups your user should be a member of. Il s'agit d'un script Perl propre à Debian et les distributions qui lui sont dérivées – comme Ubuntu – posant des questions à propos d'un compte à créer, puis invoque le programme usermod en lui passant en arguments les informations récupérées.

Add a new shared folder

By default, sudo on Ubuntu 16.04 systems is configured to extend full privileges to any user in the sudo group. Why not register and get more from Qiita?

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use groupadd admin to add the group then you could run adduser myuser admin.However you may want to instead use usermod -G myuser,admin myuser to remove yourself from the root group.

Stock. Let’s examine two approaches to this problem: Adding the user to a pre-defined sudo user group, and specifying privileges on a per-user basis in sudo’s configuration. Then as per several of the previous answers in a Terminal on the Guest VM add your user to the vboxsf group. Instead of using the image provided by virtualbox you should just download it trough aptitute sudo apt-get install virtualbox-guest-dkms and if you need the headers download this sudo apt-get install linux-headers-virtual instead of the classic sudo apt-get install linux-headers-$(uname -r).. Here are the commands: To add a user. The shared folder should now be available and accessible as sf_rhelshared assuming you used the same names as I did in the popup window above. # adduser user_name ※ useradd ... # gpasswd -a user_name sudo Adding user user_name to group sudo Edit request.

Cheers.

This prevents the accidental use of commands with massive consequences.

adduser est un outil en mode console permettant de créer un compte d'utilisateur de manière interactive. Right-click your VM, then click Settings. To add a user you must use the sudo command (for an explanation of what that means, see the RootSudo page). Edit: Changed the {} for as pointed by @Abdelouahab. Add the New User to the Sudo Group. This guide will walk you through steps on how to setup a VirtualBox shared folder inside your Ubuntu Server guest.

Mounting VirtualBox shared folders on Ubuntu Server 16.04 LTS.

Why use useradd?

The -G specified to modify groups it belongs to. sudo usermod -a -G vboxsf Log out and in again to pickup the change. Here is a useful example of the useradd command.