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[99.139.148.170]) by smtp.gmail.com with ESMTPSA id w25sm66916otm.81.2020.07.28.17.46.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Jul 2020 17:46:57 -0700 (PDT) To: Warner Losh References: <6a0063f8-128d-751d-114f-a0f811d02098@gmail.com> From: Will Senn Message-ID: Date: Tue, 28 Jul 2020 19:46:56 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------B82FA61E07B2BCEFBAEDBA33" Content-Language: en-US Subject: Re: [TUHS] 2bsd tarball X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This is a multi-part message in MIME format. --------------B82FA61E07B2BCEFBAEDBA33 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit 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 > -rw-r--r--  0 0      10      15216 Feb 17  1980 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 with a block size of > 1 so the above dd will work on the target system... This definitely makes sense. Thanks. This -- GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF --------------B82FA61E07B2BCEFBAEDBA33 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
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
-rw-r--r--  0 0      10      15216 Feb 17  1980 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 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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