ref: bc91b2709ff5d7d2dfc74a40e650628ea2064e52 dir: /sys/lib/rootbind/
bind `{pwd} /n/src9 bind /n/src9/386/bin /bin bind -a /n/src9/rc/bin /bin for(i in 386 rc acme mail sys lib cron){bind -c /n/src9/$i /$i}