VB won't run. Qt FATAL: QXcbConnection: Could not connect to display

[Sisir]

Hello, I have installed Virtualbox into centos 7.1 ( bare metal server, minimal installation ). when I run the commend `virtualbox` it comes up with the following error.

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Qt FATAL: QXcbConnection: Could not connect to display
Aborted

CentOS: 7.1
VB : 5.1

More information

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# echo $DISPLAY

shows empty string

[Perryg]

bare metal server, minimal installation

This suggests a server with console mode only. Have you installed the necessary packages for GUI ( Xorg ) on this server?

[Sisir]

I guess it is not.

Two questions:

1. Do I need GUI tool if I am planning to run VB using CLI? I have installed vagrant afterwards. Vagrant was able to install boxes without any issue.

2. If I install a windows box ( for example Win 2000 Server ). Will I be able to connect to it using remote desktop without having any GUI tool installed in the host machine.

[Perryg]

1) Don't know. I don't use vagrant and it is not supported here.
2) Same answer as above.

I can say if the host does not support some features the guest will not have them available, IE: 3D Accel., Etc.