On 7/28/20 7:09 PM, Warner Losh wrote:
Both of the 2bsd tapes you found are from the days
when Berkeley just
sent patches to the 7th Edition out. The 2.8BSD tape was the first one
to have a kernel that was bootable from the tape. The 2BSD tapes
originally had 2 files on them. The first one was a binary copy of tar
that ran on V7. The second was a tarball of all the rest. As you
discovered, they shipped with a label like:
Second Berkeley Software Tape
May 10, 1979 TAR 800BPI
%dd if=/dev/mt0 bs=1b skip=1 of=tar
%chmod 755 tar
% tar x
10000 blocks
but the 2bsd.tar.gz file has just the second file.
The spensor_2bsd.tar.gz has a tar binary in it:
tar tvf spencer_2bsd.tar.gz | head
-rw-r--r-- 0 0 0 24688 Feb 17 1980 tar
-rw-r--r-- 0 0 10 3687 Feb 17 1980 tar.1
-rw-r--r-- 0 0 10 456 Feb 17 1980 tar.ms <http://tar.ms>
-rw-r--r-- 0 0 10 15216 Feb 17 1980 install.ms
<http://install.ms>
if you are looking for that pre-built. If you are looking to create a
tape with tar on it to extract other tar tapes, you'd need to use a
variation on the maketape.pl <http://maketape.pl> with a block size of
1 so the above dd will work on the target system...
This definitely makes sense. Thanks. This
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