'size' field in disk_info files

[Timothy Fossum]

Subject: 'size' field in disk_info files
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Reply-To: fossum at vacs.uwp.edu (Timothy Fossum)
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Organization: University of Wisconsin - Parkside
Keywords: 4.1.1 install disk_info

How is the 'size' field in the partition information for the disk_info.xxn
files determined?  The upgrade manual for 4.1.1 says that if you change the
partition sizes for a drive after installation, you must manually change
the appropriate disk_info.xxn file in /etc/install if you want add_services
to recognize the correct partition sizes.  It then goes on to say that the
fields in the files are MOSTLY self-explanatory.  But what about the
'size' field?  As close as I can determine, for a CDC Wren IV it is
about equal to the (integer part of the) number of blocks divided by
1954, but NOT IN ALL CASES.  What is the exact meaning of the 'size' field,
and how does one compute it?
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