linprocfs and linux_base port upgrade

[Kris Kennaway]

On Wed, Feb 22, 2006 at 09:53:36AM +0800, Mars G. Miro wrote:
> >>
> >> Actually, this unmount ... remount situation is pretty evil.  For
> >> example, it prevents users from building linux_base in a jail.  In
> >> fact I'd like to switch to building packages in jails instead of
> >> chroots on the package cluster, but this is the major reason I can't.
> 
> I have been able to build linux_base in a jail, but I had to turn on a
> few sysctl jail knobs on the main host (see more below)
> 
> > Not to mention that the umount isn't always reliable for some reason:
> > the linux_base-8 package build often fails with this:
> 
> > ===>  Checking if emulators/linux_base-8 already installed
> > Un-mounting linprocfs...
> > kern.fallback_elf_brand: -1 -> 3
> > redhat-release-8.0-8.noarch.rpm
> > glibc-common-2.3.2-4.80.8.i386.rpm
> > glibc-2.3.2-4.80.8.i386.rpm
> > setup-2.5.20-1.noarch.rpm
> > filesystem-2.1.6-5.noarch.rpm
> > unpacking of archive failed on file /proc: cpio: chown failed - Operation not
> > supported
> 
> I usually have, in /etc/sysctl.conf:
> ...
> 
> # for the Jails
> security.jail.allow_raw_sockets=1
> security.jail.sysvipc_allowed=1
> security.jail.chflags_allowed=1
> ...
> 
> I think that last error you got has something todo w/ enabling the
> chflags sysctl jail.

No, it's because it tried and failed to umount linprocfs.  Presumably
you didnt have linprocfs mounted in your jail, but some packages
require this so I have to have it present always.

Kris
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