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From: Dave Horsfall <dave@horsfall.org>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
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On Tue, 6 Nov 2018, ron@ronnatalie.com wrote:

> An early UNIX paper shows the system had four RK05's (4872 512-byte 
> blocks on UNIX, for some reason only 4800 used on the DEC OSs ... 
> remember we had to poke ROLLIN to copy the full UNIX partition 
> standalone).

Bad blocks?  I think I have an article in AUUGN where I proposed that bad 
blocks be assigned (somehow) to a pseudo-file as inode #0 (or -1?); that 
way, the "dump" utility would not see it, and neither would the FS tools 
(but a disk image would, of course).

> /dev/rk0 - available for user packs.
> /dev/rk1 - root

Odd layout...  I normally saw them the other way around.

-- Dave