Date: Tue, 9 Aug 2005 23:35:11 +0200 From: Emanuel Strobl <Emanuel.strobl@gmx.net> To: freebsd-current@freebsd.org, drvince@anonymnet.net Subject: Re: More into /etc/rc.d/jail Message-ID: <200508092335.21889@harrymail> In-Reply-To: <N1-uLBXxM-zn8@Safe-mail.net> References: <N1-uLBXxM-zn8@Safe-mail.net>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --]
Am Dienstag, 9. August 2005 21:10 CEST schrieb drvince@safe-mail.net:
> Hi,
> I'm using jails inside md devices to limit the disk space each jail can
> use. It's working great but I have to start manually all of them at
> startup. Here's my drill:
>
> mdconfig -a -t vnode -f ${IMAGE} -u ${ID}
> fsck_ufs /dev/md${ID}c
> mount /dev/md${ID}c ${DEST}
> mount_devfs devfs ${DEST}/dev
> jail -l -U root ${DEST} ${FQDN} ${IP} /bin/sh /etc/rc
And you don't suffer from a big disk performance degradation with that?
If you don't have I/O load it doesn't matter but I need usual I/O
performance so I give each jail its own partition (GPT partitions).
But I think some good guys are looking for fixing the performance issue
like they already solved the nullfs problem :) Thanks again for that!
(Jeff?)
So it was fine to have the stuff you suggested in the future.
-Harry
> Therefore, I can't use the /etc/rc.d/jail facility. So I thought, it
> would be good to add *fsck before mounting* and an optional mdconfig
> beforehand.
>
> jail_${NAME}_md_device="" # The device to attach or NO
> jail_${NAME}_image="" # The image file containing the jail, used
> with md_device jail_${NAME}_fsck_options="" # Options to pass to fsck
>
> In fsck_options I could put "-t ufs". Of course, /dev/md${ID}c must be
> present before mounting, could happen if the image isn't bsdlabel'ed.
>
> I'm a terrible coder, I could do it, but I'll need coaching and I've
> never made a patch. I would gladly hand that to someone else but I also
> need it to be done, I can't babysit the server forever. So, how does it
> sound?
>
> DrVince
> _______________________________________________
> freebsd-current@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to
> "freebsd-current-unsubscribe@freebsd.org"
[-- Attachment #2 --]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (FreeBSD)
iD8DBQBC+SGZBylq0S4AzzwRAjTlAJ9mhUvMPp6EXvZf6tVtEwPBi/MzDgCfdwE/
QIx7gd/0/pR8R+DWlpn83rE=
=HaFQ
-----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200508092335.21889>