Jerome H. Fine
jhfinedp3k at compsys.to
Mon Jun 6 04:36:02 CDT 2016
>Rod Smallwood wrote:
> On 06/06/2016 03:51, Jerome H. Fine wrote:
>> >Rod Smallwood wrote:
>>> I have a box full of 8" floppies. BTW how many 8" floppies do you
>>> think there were in an RT11 distribution?
>> I can't remember for sure, but I think there were eight SSDD (RX02)
>> plus an Auto-Install floppy. That would have been for V05.06 of
>> RT-11 which
>> requires over 6,800 blocks for an RL02 disk pack. Since some of the
>> get duplicated, eight seems about right.
>> I doubt that V05.07 of RT-11 from Mentec was ever supported on RX02
>> floppies. The size of the binary distribution for V05.07 of RT-11 is
>> 16,600 blocks on an RL02 disk pack of which over 9,000 blocks are
>> DSK files (one of which is 7,000 blocks) which Mentec added to the
>> V05.07 RT-11 distribution.
>> Using RX01 floppies will take many more since there are only half the
>> or 494 blocks on a SSSD (RX01) floppy.
>> Do you have any other questions? I don't know of any RT-11
>> on RX02 image files for either V05.06 or V05.07 of RT-11. There may
>> be some for earlier versions.
> The first one out of the box read 1/87 and its not the date.
Can you provide a DIR of the first few floppies? The names and
sizes of the files will pin down which version of RT-11 if the
actual dates were not correct. Otherwise, the dates of the files,
if they are correct, will specify the version of RT-11 if the dates
are 1983 (or after) when V05.00 of RT-11 was released. Before
1983, there were many updates, so there is more confusion.
Internally, each SAV file has a version and each MAC file also
has a version number which will also help identify the file aside
from a BINCOM to compare two files.
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