PowerPC Linux builds Files

This repository hosts a partial (but complete enough to be usable) rebuild of
Ubuntu 18.04 for powerpc.

The powerpc (32-bit, big endian with some optional 64-bit components)
architecture was officially dropped from Ubuntu after version 16.04, so this is
an attempt to gradually revive the port for use on older PowerPC Macs.

The first iteration of the partial rebuild includes most of the original
package versions from the 'main' repository (95% built) and a majority of the
packages from the 'universe' repository (67% built).

It's enough to upgrade a fresh Ubuntu MATE 16.04 installation to 18.04 and
provides a good foundation for continuing the work, bringing more packages
up-to-date for our old and trusted Macs.

Rough instructions for updating an existing installation of Ubuntu MATE 16.04
(powerpc) to this Ubuntu 18.04 rebuild:
- First add my signing key to make sure packages can be authenticated:
  apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 2ADEC8BDDF66C3EF
- Install the 'apt-transport-https' package if it's not installed already, as
  sourceforge doesn't support regular http transfers.
  Note: An old Ubuntu 16.04 (xenial) installation may not have the necessary
  certificates installed causing https connections to fail. In this case you
  must unfortunately disable https certificate validation. The easiest way is
  to create a new file '/etc/apt/apt.conf.d/99-disable-https-verify' with the
  following configuration directives:
    Acquire::https::Verify-Peer "false";
    Acquire::https::Verify-Host "false";
- Modify your /etc/apt/sources.list adding the entry:
  deb https://sourceforge.net/projects/powerpc-linux-builds/files/ubuntu-bionic-powerpc/ bionic main
- apt update && apt dist-upgrade

At least in theory this should work. Your mileage may vary!