After selecting non-Latin keyboard layouts in the graphical installer,
there is no way to input Latin characters again. This means hostname,
username, password, the home directory path /home/… cannot be
specified in Latin.
There either should be a way to switch the keyboard layout later on.
For example currently there is neither a place in the GUI to switch
the layout nor key combinations or (on a Japanese keyboard) support
for the keyboard’s romaji key to switch layouts. Of course typing
`loadkeys` is impossible too.
Or the keyboard layout should not be switched to non-Latin. For
example, when choosing Arabic AZERTY layout, during install the
keyboard should be switched to Latin AZERTY layout and not Arabic.
Note that choosing non-Latin usernames and passwords appears to have
caused problems before, see https://bugs.gnu.org/37872 (I have not
Similar considerations: Maybe the default keyboard layout for virtual
console TTYs and bootloaders should be Latin unless changed