Description of problem:

I do lot of builds with mock. If machine is powerful enough I would like to run multiple builds (as some take hours while other take just minutes).

Actual results:

Mock runs in /var/lib/mock/root/ which limits myself to just one copy at time. If I want another one I have to tweak configuration to create second rootfs from scratch. And do it for each package and clean after.

Expected results:

Multiple copies of mock run without interfering each other (they may wait during yum package updates).

Additional info:

I came from Debian and used pbuilder a lot. There you have tarball with basic chroot which is unpacked into /var/cache/pbuilder/build/RANDOMNAME/ and then populated with build dependencies and removed after build.