I have recently had to reinstall qubes and I am at the point for making a sys-usb. I have a desktop and a usb keyboard so I thought I had previously just created one via sudo qubesctl state.sls qvm.sys-usb made it so it would NOT start on boot up and I would manually start it after logging in... well I just tried that and... locked myself out when i rebooted. I am 99.999% sure i selected for it to not start up at boot via qubes settings but I just want to make sure that the steps I (think) I took should leave me with a usable system... if yes i will assume that I had a brain fart and actually didnt set the sys-usb to not boot at startup.
Thx!
Pretty sure qubes automatically locks usb input without that vm active, so you need it to start automatically, there's probably a way to fix that through a rescue terminal or something, but I'd have to look into exactly how that would be done... since it's based on fedora you could probably;
Add rd.break at the end of kernel options
mount -o remount,rw /sysroot
chroot /sysroot
qvm-prefs sys-usb autostart False
exit
exit
-Emlay
Add rd.break at the end of kernel options
mount -o remount,rw /sysroot
chroot /sysroot
qvm-prefs sys-usb autostart False
exit
exit
This is the first half, which will stop the VM from starting. The other
half is to remove `rd.qubes.hide_all_usb` from the kernel Commandline.
For UEFI, that's in `/boot/efi/EFI/qubes/xen.cfg`. For BIOS, you can
edit it for individual boots in grub and permanently change it in
`/etc/default/grub`.