ref: fa1a49f2cf23d8ddb4605694b86a20138f6c64c9
dir: /sys/lib/rootbind/
bind `{pwd} /n/src9
if(test -x /n/src9/$cputype/bin/bind)
bind /n/src9/$cputype/bin /bin
bind -a /n/src9/rc/bin /bin
bind /lib/ndb /n/src9/lib/ndb
for(i in $objtype rc acme mail sys lib cron){bind -c /n/src9/$i /$i}