Thursday, October 25, 2012

How to Setup an Alternative Linux Distro Chroot Under Ubuntu - Part 2

NOTE: This is part 2 of a 2 part series.

In my last post, we setup a chroot environment for our RPM based distribution in /srv/chroots/rhel6-ppc. Now we'll setup schroot so we can access this environment as if it were the booted system, and using a union type scheme (an schroot configuration setup) so that we will always have a pristine environment for builds and such.

So let's look at /etc/schroot/schroot.conf and add the following entry:

description=RedHat Enterprise Linux 6

This is the basic setup. The key here is that it uses overlayfs for union mounting the original. This means that after you exit a newly created schroot for this entry, it will be purged and the original chroot will not be changed.

Also, the profile=default means it will use configurations from /etc/schroot/default/. Make sure to add yourself to the adm group or run schroot as root.

In order to try it out, use the following command:

schroot -c rhel6

From here, you can do whatever it is you like to do in your new environment!

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