On Sat, Dec 28, 2019 at 08:00:46AM -0800, mastor wrote:
> my USB controller is attached to nothing, but needed for Yubikey login.
> I lost my tty2-credentials (the username), so I'm locked out of the system. 
> BIOS changes don't help.
> Is there any way to "free" USB during boot? Or get rid of the tty login 
> credentials?

not sure what "tty login credentials" means.
but you can always boot some random live-linux (like "fedora
workstation"), open the qubes luks device and mount the dom0
root and check/change whatever needs fixing there.

if you are just missing your dom0 username (huh?), getting it
through liveboot is probably easiest.
you can also change the boot config to remove all mentions
of hide-all-usb. (check a guide on how to configure a qubes
for usb-keyboard usage, basicly same thing)


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