This directory contains Ultrix V2.00 and V4.20 sources seized and freed by the
International Free Computing Task Force (IFCTF). For each version we have a
tarball with complete kernel and userland sources, or at least as complete as
we have been able to tell. The source tarballs in this directory are the ones
sent to us by the agent who has retrieved them without modification except for
compression.

Each source tarball is provided in two compressed forms. The .tar.Z version is
compressed with traditional UNIX compress and can be uncompressed by Ultrix
uncompress. For faster downloads we have also provided the same tarballs
compressed with 4.3BSD-Quasijarus compress -s. These are the .tar.Z+ files. To
uncompress them you must use the 4.3BSD-Quasijarus version of compress, the
source for which is available on this site in /pub/UNIX/components/compress.tar

The .lst files contain the output of tar tv for each tarball, so you can see
what's in them before you download them. After decompression the Ultrix V2.00
source weighs about 80 MB, V4.20 about 120 MB.

SE 45 Sim 27 update: We now have the sources for Ultrix 4.3 (or V4.30 if you
prefer) too, including the X server and environment with DEC extensions! The
tarballs are compressed with bzip2 to save disk space and reduce the load on
our network from people's downloads. (In fact the tarballs are exactly as we've
received them from the anonymous contributor, including bz2 compression.)