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lewis4u
Asked: 2017-07-01 00:52:54 +0800 CST

VirtualBox - I cannot start GUI on Ubuntu Server anymore

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I have installed Ubuntu Server 16.04 and on top of it GNOME in a VirtualBox VM. Since I updated the system, I can boot the VM, access the terminal console and log in - but when I run startx in order to start the graphical GNOME desktop environment, I receive the following error message:

ubuntu@ubuntu:~$ startx

X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-45-generic x86_64 Ubuntu
Current Operating System: Linux ubuntu 4.4.0-81-generic #104-Ubuntu SMP Wed Jun 14 08:17:06 UTC 2017 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-81-generic root=UUID=99c624b7-abf7-459e-9f58-a1ffe335794f ro
Build Date: 02 November 2016  10:06:10PM
xorg-server 2:1.18.4-0ubuntu0.2 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.33.6
    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/home/ubuntu/.local/share/xorg/Xorg.0.log", Time: Fri Jun 30 08:18:56 2017
(==) Using default built-in configuration (39 lines)
(EE) 
Fatal server error:
(EE) parse_vt_settings: Cannot open /dev/tty0 (Permission denied)
(EE) 
(EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/home/ubuntu/.local/share/xorg/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.
xinit: giving up
xinit: unable to connect to X server: Cannot assign requested address
xinit: server error
Couldn't get a file descriptor referring to the console

Among the updates were some kernel packages. Does anyone know how to solve this problem?

server

2 Answers

  1. Best Answer

    The problem might be due to the installed VirtualBox guest additions and may occur when a new kernel gets installed. Reinstall the vbox guest additions, important is that the version matches the installed VirtualBox version. Reboot the virtual machine afterwards ... it should solve the problem.

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  2. Your system seems capable to create X-session on its console.
    Why are you entering the startx command in a terminal? The display manager is probably already running. You do realize the terminal can not be used as the output device of an Xsession, I hope? You only connect via terminal to a server (or any machine) to perform actions on command line.

    I just installed a fresh Ubuntu Server 16.04 in VMWorkstation, installed openssh-server. connected via terminal (ssh) and installed gdm and rebooted. I now see a graphical login screen.

    enter image description here

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