Broken system after installing USB qube

[apparatus]

Did you execute:

sudo qubesctl state.sls qvm.sys-usb

Or:

sudo qubesctl state.sls qvm.usb-keyboard

?

I’m not sure if qvm.sys-usb checks whatever you have USB keyboard or not and switching to qvm.usb-keyboard if you do.

@sigma

Does this mean my laptops keyboard has internal USB connection?

I don’t know, you can check it:

How to reliably check if keyboard/touchpad are PS/2 internal or something similar?

How to reliably check if keyboard/touchpad is connected in such way, that problems with sys-usb do not affect them? There are modern laptops (like Thinkpads) that have such feature. I am not sure, maybe they use PS/2 internally or something. How to check on laptop that it is the case? I mean there is probably a way to examine logs, or ls-usb/ls-pci output, but I want something simple to recommend other people for HCL. Maybe something like: qvm-pause sys-usb && echo 'Paused' && sleep 10 && qvm…

@sigma

If I remove this line:
usbcore.authorized_default=0
Does it mean all of my USB devices will be visibale to Dom0 during boot only, or all the time?

All devices will be initialization and accessible in dom0, after boot as well.
If you have multiple USB controllers then you can dedicate one of them to dom0 to be used for your USB external drive and keyboard/mouse if they are connected to USB controller as well.
And you can attach other USB controllers to sys-usb.

USB qubes

But don’t add usbcore.authorized_default=0 because you’re booting from USB drive.