/usr/obj/tools/bin/nbmakefs -t ffs -B be -s 7680k -F work.spec -N /usr/src/etc -o bsize=4096,fsize= 512 -o optimization=space,minfree=0,nsectors=1,ntracks=128 -o density=4k miniroot.fs.tmp work && mv -f miniroot.fs.tmp miniroot.fs nbmakefs: size 0 is less than 1. *** Error code 1 Stop. nbmake: stopped in /usr/src/distrib/miniroot