4.3: Disable minimal-usbvm service in sys-usb to use external storage

Original forum link

https://forum.qubes-os.org/t/38039

Original poster

Ali MJ

Created at

2025-12-22 14:56:44

Posts count

4

Likes count

8

Major note:

It turns out that this issue might not be intentional and real regression. The linked Github issue is to track the problem and solve it.

Original post

Hi. 1. Click on Qubes Domains icon on the taskbar (the gray cube icon). Then from the running qube list select sys-usb and then Settings. Another alternative to open settings is going to App Menu -> Cube icon -> SERVICE tab -> sys-usb -> Settings at the bottom of the menu. 2. In Settings: sys-usb dialog. Go to Services tab. 3. If minimal-usbvm is there and is checked, un-check it.If it is not there, click Select a serice -> (custom...) -> Add -> type minimal-usbvm and then unckeck it. 4. Go back to Advanced tab and increase initial memory to 500.

Alternative solution if you like command line: 1. Open a terminal in dom0 2. type qvm-service sys-usb minimal-usbvm off 3. type qvm-prefs sys-usb memory 500

That is it.