I know about dofsck as a kernel's command line parameter. Problem is, I needed to check FD64 partition (sda1 in my case) on purpose.
Long story short, I commented the line "rm /etc/booted" in /etc/rc.d/rc.shutdown and rebooted. The system partition was checked and errors found (as I suspected) and fixed.
When system ready, first thing done was uncommenting the line. Problem solved.
Question: Is there a more "elegant" way in FD64 to perform a fsck on system partition? I added "on boot", having dofsck in mind, 'cause it seems easier that way than remounting the partition as read-only (as I read somewhere) which honestly it's greek to me (if that's the way to go in FD64, idk).
Enlightenment required and "Thanks" in advance.