Find out Guest Addition version NOT from LOG file?

Discussions related to using VirtualBox on Windows hosts.

Find out Guest Addition version NOT from LOG file?

Postby pstein » 17. Sep 2021, 10:13

How can I find out the current Guest Addition version NOT from log file?

Is there somewhere an entry/menu in VirtualBox Manager?

Or a shortcut in guestOS toolbar?

Do Guest Additions inside a guestOS require a corresponding tool partner in VirtualBox Host installation?
or are they independent?

Peter
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Re: Find out Guest Addition version NOT from LOG file?

Postby mpack » 17. Sep 2021, 11:07

pstein wrote:Is there somewhere an entry/menu in VirtualBox Manager?

How would the manager know what software you installed in a VM?

pstein wrote:Or a shortcut in guestOS toolbar?

Now you're getting somewhere, though of course this assumes that the guest OS has toolbars, but you have not said what the guest OS is. If the guest is Windows then yes, there should be a VirtualBox icon over in the notification area, and if you hover over this it should report the GAs version. Those features are of course themselves version dependent though.
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pstein wrote:Do Guest Additions inside a guestOS require a corresponding tool partner in VirtualBox Host installation?
or are they independent?

They require VirtualBox to be running on the host. The host background service (VBoxSVC) publishes an API which the GAs can call into, for example the graphics and shared folders APIs. They don't have to be strictly "corresponding" in the version sense, the main thing is that the GAs must not be newer than the host software, i.e. they musn't rely on features that don't exist yet. And it's helpful if the GAs are not ancient either. In some cases GAs version XX fixes certain bugs, so if you need that bug fixed then you need to be using GAs version XX or later. Graphics related bugs have been fixed quite regularly in recent versions, due to the introduction of new graphics controllers in 6.x.
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Re: Find out Guest Addition version NOT from LOG file?

Postby scottgus1 » 17. Sep 2021, 14:32

Another possibility inside the VM, if command-line determination is in scope, is this command in the VM OS's command line:

vboxcontrol -v
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Re: Find out Guest Addition version NOT from LOG file?

Postby pstein » 17. Sep 2021, 15:12

scottgus1 wrote:Another possibility inside the VM, if command-line determination is in scope, is this command in the VM OS's command line:

vboxcontrol -v


NOT working in Linux Mint v20.1

vboxcontrol: command not found

guestOS Guest Addition version according to log file: Version 6.1.26 r145957 '6.1.26'
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Re: Find out Guest Addition version NOT from LOG file?

Postby mpack » 17. Sep 2021, 16:23

Linux terminals are usually case sensitive. Try "VBoxControl -v".
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Re: Find out Guest Addition version NOT from LOG file?

Postby pstein » 18. Sep 2021, 07:38

Thank you
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