Ubuntu 14.04.1 guest with Virtualbox 5.0.0

[Edwanji]

I'm running Virtualbox 5.0.0 under a Windows 7 (x64) host. I have been successfully running a Ubuntu 14.04.1 guest under version 4.3 for a few months.
This morning, when I booted up my guest system, the screen was stuck in 640x480 resolution. I re-installed the guest additions, and saw the error: "Warning: unknown version of the X Window System installed. Not installing X Window System drivers." I searched the forum, and found the most common solution was upgrading VirtualBox, so I installed the latest version (5.0.0) and tried again, with the same effect.
Here is what I'm getting when installing the guest additions:

Verifying archive integrity... All good.
Uncompressing VirtualBox 5.0.0 Guest Additions for Linux............
VirtualBox Guest Additions installer
Removing installed version 5.0.0 of VirtualBox Guest Additions...
Stopping VirtualBox Additions ...fail!
(Cannot unload module vboxguest)
Removing existing VirtualBox DKMS kernel modules ...done.
Removing existing VirtualBox non-DKMS kernel modules ...done.
Copying additional installer modules ...
add_symlink: link file /usr/lib/i386-linux-gnu/VBoxGuestAdditions already exists
add_symlink: link file /usr/lib/VBoxGuestAdditions already exists
add_symlink: link file /usr/share/VBoxGuestAdditions already exists
Installing additional modules ...
Removing existing VirtualBox DKMS kernel modules ...done.
Removing existing VirtualBox non-DKMS kernel modules ...done.
Building the VirtualBox Guest Additions kernel modules ...done.
Doing non-kernel setup of the Guest Additions ...done.
You should restart your guest to make sure the new modules are actually used

Installing the Window System drivers
Warning: unknown version of the X Window System installed. Not installing
X Window System drivers.
...done.
Installing graphics libraries and desktop services components ...fail!
(See the log file /var/log/vboxadd-install-x11.log for more information.)
Press Return to close this window...

The suggested vboxadd-install-x11.log was less than helpful:

VirtualBox Guest Additions installation, Window System and desktop setup
install_x11_startup_app: no script given

What sort-of works is "sudo apt-get install virtualbox-guest-x11", which apparently installs the 4.3 guest addition version, which allows full resolution, but doesn't provide 3d acceleration, so it is barely usable.

Is this simply a matter of waiting for a newer version of VirtualBox that includes scripts for the latest version of X?

[loukingjr]

It seems like you are mixing the Ubuntu version of VirtualBox with official version. That won't work. You need to use one or the other. Preferably the official version if you need support here.

Attach the vbox.log (compressed) for the guest.

[Edwanji]

It seems like you are mixing the Ubuntu version of VirtualBox with official version. That won't work. You need to use one or the other. Preferably the official version if you need support here.

Attach the vbox.log (compressed) for the guest.

Here it is

[RedBeardedT]

An answer to this would help me as well, I'm stuck in the same resolution. This is my first time using a VM, if you could link to the right guest addition so I can make sure I used the right one would help. (I'm not trying to jack your thread or anything, sorry)

Info- Using Ubuntu 14.04.2 Virtualbox 5.0.0 as well. First time using VM, first time using Ubuntu(or any kind of linux) since 2012.

[Perryg]

Reading the install script suggests that you need to look at:

Installing graphics libraries and desktop services components ...fail!
(See the log file /var/log/vboxadd-install-x11.log for more information.)

We would need to see that file and the /var/log/vboxadd-install.log to be able to tell what happened.

[linuxbastler]

I have the exact same behaviour with a Ubuntu 14.04 guest.
@Perryg: my vboxadd-install-x11.log is the same the thread starter posted above.

What finally helped me installing VBoxGuestAdditions 5.0.8 was following rude method, backup before!

1) update database
sudo updatedb

2) search all occurances of VBoxGuestAdditions:
locate VBoxGuestAdditions

3) delete all of them:
rm -rf "results of 2)"

Afterwards the installation of VBoxGuestadditions 5.0.8 worked fine.