ref: 9b76881a8e11c44aae5dfd447e1cd1bc074ec9f3
dir: /fsck/
#!/bin/rc
# usage
# disk/fsck /dev/sdFn/fs
disk=$1
if(~ $#disk '')
exit invalid disk
# get the total number of blocks from the config block
nblocks=`{disk/block $disk 2 | awk '$1 == "nblocks"{ print $2 }'}
# write the free extents to /adm/frees
disk/updatefrees $disk <{disk/unused $nblocks <{disk/used $disk}
# change fsok from 0 to 1
disk/fsok $disk