jail stop extracting iso file

[tethys ocean]

Hi all

In server jail and squid is running on it  as lots of another packet. i want
to extract iso image in this server.  But i havent do it.

#mdconfig -a -t vnode -f big_bcbcv.iso
#mdconfig: open(/dev/mdctl): No such file or directory

#ls -l /dev/md*
#ls -ls /dev/mdctl
ls: /dev/mdctl: No such file or directory


i am not familiar with jail.  only i can extract my iso file. İ suppose that
jail stop me, jail blocking me for access some source


is it true?

1-how can extract this iso file
2-is jail stop me?  or any other trouble about my mdctl?

regard
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