Date: Sat, 15 May 2004 15:53:00 -0700 From: Kris Kennaway <kris@obsecurity.org> To: "Marc G. Fournier" <scrappy@hub.org> Cc: Colin Percival <colin.percival@wadham.ox.ac.uk> Subject: Re: COMPAT4X and 5.x ... how backwards compatible? Message-ID: <20040515225300.GB30459@xor.obsecurity.org> In-Reply-To: <20040515181227.I920@ganymede.hub.org> References: <20040515151158.Q13297@ganymede.hub.org> <6.1.0.6.1.20040515205417.03f5c8e0@popserver.sfu.ca> <20040515181227.I920@ganymede.hub.org>
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--IiVenqGWf+H9Y6IX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, May 15, 2004 at 06:13:00PM -0300, Marc G. Fournier wrote: > On Sat, 15 May 2004, Colin Percival wrote: >=20 > > At 19:14 15/05/2004, Marc G. Fournier wrote: > > >I'm picking up some new servers, and want to start looking at migratin= g to > > >5.x from 4.x ... how viable is it to install 5.x on the new server, and > > >move an existing jail'd environment over to there and run it, with the= 4.x > > >binaries/libraries inside of the jail? Is this "wishful thinking" on = my > > >part, that this would be possible? > > > > As long as you mount an appropriate devfs inside each jail, this should > > be possible. I run RELENG_4_x jails inside a RELENG_5_2 system for the > > purpose of building binary updates, and I haven't had any problems yet. >=20 > How do stuff like ps work, or do they? I know I've seen updates to the > 4.x base system cause ps to break inside of the jail itself, so I'm > guessing stuff like this won't work across? About the only thing that usually doesn't work when you update the OS are binaries that use libkvm, including ps. For the package builds, I use a 4.x chroot with a few select binaries and support libraries copied in from the 5.x host. Kris --IiVenqGWf+H9Y6IX Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFApp9MWry0BWjoQKURAmKxAJ9BLjOD47dfDRBMWPmjcCPiJZDgawCgmFQc uklLCtNKjA4quxp1OS53nbk= =6nLP -----END PGP SIGNATURE----- --IiVenqGWf+H9Y6IX--
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