~
..
For a backup by class, if the backup
is
to include system files, the
destination disk must be newly formatted. BACKUP can't create a
system disk if the destination disk contains data files. (Existing files
may be using certain areas needed by the system.)
If you are backing up the entire disk, TRSDOS compares the source
and destination disk Disk ID's to make sure they are identical.
If
the
master passwords or disk names differ, you see the following
message:
Destination
disK
ID
is
different
--
NAME=disN
nafrle
DATE =
frlfrllddl}'
Y
Are
}'ou
sure
}'ou
ItJant
to
backup
to
it
<YIN::?
Press
(]J
to abort the BACKUP or
CD
to continue.
If
the disks' master passwords differ, the following message appears:
Destination
disk
ID
is
different
--
NAME=disk
n
afrle
DATE =
frlfrlldd
Iy}'
Enter
its
Master
PasslAlord
or
<BreafZ>
to
abort:
Press
(BREAK)
to abort the BACKUP or enter the password to continue.
If
the source and destination disks have a different number of
cylinders, the following message appears:
C}'linder
counts
differ
-
AttefrlPt
frlirror-iiTlage
bacfZup
?
Answer this question with
CD
to attempt a mirror image backup or
with
(]J
to force a backup reconstruct.
If a mirror image backup
is
not possible, you get the error:
Bacfzup
aborted,
destination
not
irlirror-ifTlage
This appears if the destination disk
is
missing a cylinder that contains
information on the source disk. This might be the case if the
destination disk was formatted with fewer cylinders than the source
disk, or if cylinders were locked out on the destination disk when it
was formatted. You can use the FREE library command to check the
destination disk for locked out cylinders.
After all the cylinders that contain data are copied to the destination
disk, BACKUP attempts to remoye
the
modification flags from the files
on the source disk.
If
the disk
is
write protected, the following
message appears:
Source
disfz
is
IAlritR
protected;
MOD
flags
not
UPdated
Backup by class may NOT be done
on
a single drive.
1-27
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