Aug 272013
 

FreshPorts has been using a chroot solution for some over a year. I now want to do that from within a jail for my development environment. Why am I jailing myself? Because I can. I want to keep my development environment separate and away from other similar developments. It’s just easier that way.

NOTE: this strategy works better with a slightly different solution.

Here are the entries from /etc/mount in the host system:

 $ grep mydev /etc/fstab
# for mydev jail in a jail
/usr/local/jails/mydev.example.org/usr/local/FreshPorts/PORTS-SVN /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/usr/ports        nullfs  ro,nosuid,noexec        0       0
/usr/local/jails/basejail/usr/share/mk                            /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/usr/share/mk     nullfs  ro,nosuid,noexec        0       0
/usr/local/jails/basejail/usr/sbin                                /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/usr/sbin         nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/usr/bin                                 /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/usr/bin          nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/libexec                                 /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/libexec          nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/usr/lib                                 /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/usr/lib          nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/sbin                                    /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/sbin             nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/lib                                     /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/lib              nullfs  ro,nosuid               0       0
/usr/local/jails/basejail/bin                                     /usr/local/jails/mydev.example.org/usr/local/FreshPorts/ports-jail/bin              nullfs  ro,nosuid               0       0

NOTES:

  1. I’m using ezjail
  2. ezjail is running off a non-standard location, /usr/local/jails, versus the standard location: /usr/jails
  3. My chroot location is /usr/local/FreshPorts/PORTS-SV within the jail
  4. The original solution, provided by zi@, used /dev, but I have found that this is not needed
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