> > don't know how i've done it (or what it done) but after making new
> > disklabel on wd1, newfs'ing partitions, installboot and moved a lot to new
> > partition disklabel gets broken and unreadable.
> 
> The disklabel is 'fictitious', which probably means the
> kernel is constructing it at boot time from the MBR
> partition table, doesn't it?
> 
> Have you rebooted?
yes and after this it was like that...

the disk before consist of MBR partition table but i've first wiped it and
then create new disklabel. everything was all right until installboot and
reboot.

what magic bytes ffs have - i will search where i have ffs made to recover
partition - it contains data