jail stop extracting iso file

Robert Watson rwatson at FreeBSD.org
Sat Aug 30 23:50:31 UTC 2008

On Sun, 31 Aug 2008, tethys ocean wrote:

> 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.

You are correct that direct manipulation of md(4) devices is not allowed in 
jail.  However, you may be running on a version FreeBSD in which tar(1) can be 
used to extract iso files, which is quite a bit more convenient for many uses.

Robert N M Watson
Computer Laboratory
University of Cambridge

> #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
> -- 
> Share now a pigeon's flight
> Bluebound along the ancient skies,
> Its women forever hair and mammal,
> A Mediterranean town may arise
> If you rip apart a pigeon's heart.

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