after some testing i have to correct my posts above. for me it works (cryptsetup without luks) but mostly not. this means on boot - mostly the "Enter passphrase" message does not appear until i press some buttons. system seems to hang at "Starting early crypto disks". only a very few times the message "Enter passphrase" appear without pressing anything.
and also pressing is different from time to time. sometimes pressing only one key is enough, and sometimes, i had to press more than one (but not at the same time).
after some testing i have to correct my posts above. for me it works (cryptsetup without luks) but mostly not. this means on boot - mostly the "Enter passphrase" message does not appear until i press some buttons. system seems to hang at "Starting early crypto disks". only a very few times the message "Enter passphrase" appear without pressing anything.
and also pressing is different from time to time. sometimes pressing only one key is enough, and sometimes, i had to press more than one (but not at the same time).