finally, i bring previos installed openbsd USB HDD(40G) . boot PC by 2G .
and then insert 40G & 500G and then clone 40G to 500G rm -rf /mnt-500/* (cd /mnt-40 ; tar cvpf - .)|(cd /mnt-500 ; tar xpf -) cp /etc/fstab /mnt-500/etc reboot boot PC by 500G nano /etc/hostname.run0 at last i enjoy previous installed environment on 500G(openbsd+arch+porteus+puppy+android) -------- see you
