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REPAIR COMMAND
22.2 -- IDs
LeAT, CAT,
Bootblock
Secto~
Check
command.
The following table shows what tests are
made
ror
the respective fields:
Field
Test Perrormed
-----
------------~--
DISK 1D
MDOS
rile name format
VERSION
Same as
MDOS.SY
REVISION
Same as
MDOS.SY
DATE
ASCII numeric
USER
Displayable
ASCII
Remainder
13inarq
zero,
excluding
MDOS
RIE
addr"ess
ar~a
If the fields in the ID sector fail to
meet
the
above
criteria;
the
field's name will be displayed as a prompt to
the opel'ator to enteT' a correct value.
If
only" a
carT'iage
retu~n
is entered in response to such a prompt,
the
ID
sector
field will no·t be changed.
Otherwise,
the entered field will
be
checked
for
correctness
and
then
sto~e~
into the ID
sector.
The version and T'evision numbers in the
ID
sector
are
compa~ed
against those of the resident operating system file
on diskette.
If the numbers
a~e
not identical,
REPAIR
will
use the version/revision numbers from the
MDOS
file since the
diskette cannot be initialized if they are not the same.
The
message:
VERSION
AND
REVISION NUMBERS IN ID SECTOR AND RESIDENT MDOS
FILE ARE DIFFERENT
THE NUMBERS IN THE ID
SECTOR
ARE CHANGED TO:
vV.rr
to
i nd
i cate
th e
c orrec ti on.
Th
e numb
ei'S
"vv" and
"1"1""
are
the version and revision numbers of
the
resident
operating
system
file, respectively.
The operator has
no
control over
~hat
the version/revision
numbers
are
in
the
ID
sector.
Thus,
those
two
fields cannot be supplied
by
the operator.
In the event that a diskette
controller
error
occu~s
when
trying
to read the corT"ect\veT'sion/revision numbers Trom the
MDOS file,
the message
**PROM 110 ERROR-STATUS=31 AT 2E8A ON DRIVE l-PSN 0019
RESIDENT
MDOS CANNOT BE LOADED -- SECTOR READ ERROR
will be displayed.
The diskette
being
repaired
cannot
be
used in drive zero since the operating system cannot be read;
howeveT'J
REPAIR
will continue to check the
remaining
system
tables.
If
the
unused
area of the ID sector has been damaged,
the message
ID
UNUSED AREA NOT
ZERO.
ZERO IT?
......
,
Page
22-04
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