Everything is clear now. Even if I messed up with the dd command I understood what I needed to do : With GNU/Linux live : # cryptsetup erase /dev/nvme0n1p3 (my LUKS partition) # wipefs -a /dev/nvme0n1p3
With OpenBSD shell : # sysctl hw.disknames # cd /dev # sh MAKEDEV sd0 (my encrypted device) # dd if=/dev/urandom of=/dev/rsd0c bs=1m count=1 Like that I have a clean device ready to welcome OpenBSD. Thanks you. -- kz
