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REPAIR COMMAND
22. 1 -- Use
4.
After
the
ABORT
or-
RESTART
pushbuttcns
were
depressed
to
stop
the
system
while
diskette
transfers were
in
progress.
5.
After
a
power
railure
occurred while diskette
transfers
were
in
progress.
Power
failures
include
those
caused
by
inadvertently switching
off the EXORciser or EXORdisk
I I
as
well
as
those
that affect
an
entire installation.
6.
After
a
diskette
has
had
its
system
tables
repair.d manually with the
DUMP
command.
This
ensures that the tables were corrected properly.
22.2ID, LCAT}
CAT, Bootblock Sector Check
Phase
1
of REPAIR begins
by
checking the !D sector
ror
readability.
If an error occurs
during
the
read
attempt,
REPAIR will display the following:
**PROM
1/0
ERRQR-STATU5=31 AT 2C4C ON DRIVE l-PSN 0000
ID SECTOR READ ERROR
WRITE TO DISK TO ATTEMPT TO CLEAR ERROR?
The
actual
error
status;
address.
and
drive number of the
first line will vary depending on the type of
~ead
error that
was detected,
tbe version
of
REPAIR being used,
and
the drive
in which the diskette resides.
The same is true for
all
of
the
PROM
1/0
error
messages given in the examples· of this
chapter.
A response of either "N" or "V" must be made
b~
the
operator.
The
"N"
response
wi
11
cause the message
ID SECTOR
CANNOT BE
CHECKED
to
be
displayed.
Since the other system tables could still
b
e a c c e
sse d , REP A I R
UJ
i 11
c on tin
u
e .
I -P
a
II
Y
II
res
p
0
n s e
i
s
given,
the
ID
sector
will
be re-written in an attempt to
clear the error.
If
an error develops during the write,
the
ID sector is considered unfixablei
however,
in this case,
the
other system tables could still be accessed,
so
REPAIR
will
continue.
I-P the ID sector can
b~
read initially without error, or
if the
ID
sector can be rewritten without error,
the contents
of the ID sector will be displayed as follows:
DISK ID:
VERSION:
REVISION:
DATE:
USER:
MDOS0300
03
00
072578
SYS DEVELOPMENT DISK
Each
field
within
the
IO
sector is checked by the REPAIR
Page
22-03
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