Date: Sun, 10 Feb 2002 11:43:52 +0000 (GMT) From: Mike Silbersack <silby@silby.com> To: Guy Helmer <ghelmer@palisadesys.com> Cc: hackers@FreeBSD.ORG Subject: RE: nullfs and unionfs Message-ID: <20020210113701.S28078-100000@patrocles.silby.com> In-Reply-To: <000001c1b24e$ffacea40$0200000a@spencer>
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On Sun, 10 Feb 2002, Guy Helmer wrote: > It looks like there are still some serious problems with this. I just > tried a similar thing on FreeBSD 4.4 and 4.5. I created a directory of > binaries to use for multiple jails, then null-mounted (read-only) the > binaries for each of the jails to use. To allow the /etc and other > parts of the jails to be written, I union-mounted a per-jail writeable > filesystem over each of the null mounts. It seemed to work well until > my jail setup program actually started a binary from inside the jail > (i.e., from the null mount) when the kernel panic'ed with trap 12. > > > Guy Helmer > Palisade Systems, Inc. If I'm not mistaken, nullfs had been fixed significantly in -current, but the changes were not MFC'd... I'm not entirely sure on this, you might wish to consult cvsweb to verify what has / has not been merged. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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