vbox on centos 7 vrde not working: Remote Desktop Extension is not available

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wcn00
Posts: 1
Joined: 19. Mar 2018, 16:22

vbox on centos 7 vrde not working: Remote Desktop Extension is not available

Post by wcn00 »

Have a bog standard centos 7 system with VirtualBox-5.2-5.2.8_121009_el7-1.x86_64 installed.
Have a ubuntu 16 vm installed with guest addons installed and running.
I've configured the remote rdp server but it won't open the port on the host machine. When I explicitly disable and enable it I get:

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[wcn00@gil ~]$ vboxmanage controlvm  17ea3673-0cee-4f74-bd44-00b5db4c3448 vrde off
[wcn00@gil ~]$ vboxmanage controlvm  17ea3673-0cee-4f74-bd44-00b5db4c3448 vrde on
VBoxManage: error: VirtualBox Remote Desktop Extension is not available
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ConsoleWrap, interface IConsole, callee nsISupports
VBoxManage: error: Context: "COMSETTER(Enabled)(TRUE)" at line 1205 of file VBoxManageControlVM.cpp
I've checked that the guest additions versions match the installed virtualbox rpm. The state of the vbox services:

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 vboxautostart-service.service                                       loaded active exited    vboxautostart-service.service
  vboxballoonctrl-service.service                                     loaded active exited    vboxballoonctrl-service.service
  vboxdrv.service                                                     loaded active exited    VirtualBox Linux kernel module
  vboxweb-service.service                                             loaded active exited    vboxweb-service.service
The firewalls on the host and the guest are disabled
The vbox guest kernel module is loaded:

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vboxsf                 45056  0
vboxvideo              36864  2
ttm                    94208  1 vboxvideo
vboxguest             299008  5 vboxsf
drm_kms_helper        167936  1 vboxvideo
drm                   360448  5 vboxvideo,ttm,drm_kms_helper
syscopyarea            16384  2 vboxvideo,drm_kms_helper
sysfillrect            16384  2 vboxvideo,drm_kms_helper
sysimgblt              16384  2 vboxvideo,drm_kms_helper
Is there some package that I have to install in addition to make this work?
I've attached the showvminfo output for this vm and its log file as well.

Thanks in advance
wcn
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Ubunbu16-2018-03-19-08-35-22.log
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ubuntu-vminfo.txt
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JEBjames
Posts: 58
Joined: 26. Jan 2017, 18:27
Primary OS: MS Windows other
VBox Version: OSE other
Guest OSses: Centos, Ubuntu, Debian, Various Windows
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Re: vbox on centos 7 vrde not working: Remote Desktop Extension is not available

Post by JEBjames »

To use vrdp you must first install the "VirtualBox Extension Pack" that matches your version of VirtualBox.

https://www.virtualbox.org/wiki/Downloads
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