COMPAT4X and 5.x ... how backwards compatible?

[Marc G. Fournier]

On Sat, 15 May 2004, Colin Percival wrote:

> At 19:14 15/05/2004, Marc G. Fournier wrote:
> >I'm picking up some new servers, and want to start looking at migrating 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.

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?

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy at hub.org           Yahoo!: yscrappy              ICQ: 7615664