[TUHS] why does tar have the tape device hard coded into it and why is it mt1 instead of mt0
Mary Ann Horton
mah at mhorton.net
Sun Dec 13 04:54:24 AEST 2015
Yeah, I just can't imagine using tar with the f option. Even back in
the day when I was writing 9 track magtapes with tar, it would be
tar cvfb /dev/rmt0 10 .
to get tape blocks bigger than 512 bytes. But we never had dectapes and
I think they did their own blocking.
On 12/11/2015 06:09 PM, Doug McIlroy wrote:
>> I have no memory of why Ken used mt1 not mt0. Doug may know.
> I don't know either. Come to think of it, I can't remember ever
> using tar without option -f. Direct machine-to-machine trasfer,
> e.g. by uucp, took a lot of business away from magtape soon
> after tar was introduced. Incidentally, I think tar was written
> by Chuck Haley or Greg Chesson, not Ken.
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