Ubuntu 16.04 Guest not seeing USB devices after upgrade

[dbailey]

I have an Ubuntu 16.04 guest running on a Windows 10 host. Last night my IT group updated my VirtualBox to 6.1.8 r137981.

When I first started the upgraded program, I ran into an issue addressed by viewtopic.php?t=66442

Following the instructions in that post, I was able to boot by VM. Now my system boots but I am not able to see any USB devices. Devices that I had been able to attach to yesterday are no longer showing as available in the new version.

I have upgraded my guest additions pack to the latest.

I have rebooted my Windows machine.

All these devices are seen in the Windows Device Manager.

Any ideas as how to proceed?

Regards,
Doug Bailey

[dbailey]

I had to reinstall VirtualBox to make the USB devices accessible to the guess. I guess the update process may have had a flaw.

[telltay]

hi, i have a problem when I upgraded 6.1.6 to 6.1.8 recently. I suspect the extension pack is the cause. So I uninstall both and reinstall the old version with the correct extension. In other word, i went back to the old version. I worked again.

can I know how do you reinstall. do you mean you uninstall the new version and reinstall the new version back?

[scottgus1]

the update process may have had a flaw.

Glitches do happen, and a reinstall can and does help. Glad you're up and running!

I upgraded 6.1.6 to 6.1.8 recently. I suspect the extension pack is the cause.

The Extension Pack version must be the same as the Virtualbox version. When you change Virtualbox versions, change the EP too.