Radio Shack TRS-80 Model II Reference Manual page 151

Utility Programs
Merging System Files
There are times when you want to move the system files from one diskette onto
another - without eliminating the system files already on the destination diskette.
Suppose, for example, you have two Radio Shack language packages on separate
diskettes, and you want to combine both packages onto a single diskette.
XFERSYS
can accomplish this via the
FULL
option.
Look back at the syntax block at the opening of this section. Compare the
descriptions given for the three options. Notice that the
FULL
option purges only
conflicting system files from the destination diskette, but leaves other system files
alone. This feature is what allows the merging of system files.
Note: "System" files can be identified by looking at the
ATTRB
column in the
directory listing. All system files will have the
"S"
attribute.
1. Backup the destination diskette.
2. Type in the command:
XFERSYS
:d
FULL
where d is the drive number for the destination diskette.
First
XFERSYS
will purge from the destination diskette all system files that are
duplicated on source diskette. It will not purge the system files unique to the
. .
~
destination diskette (i.e., the language-package files).
Next
XFERSYS
will copy all system files from the source. This includes all of the
standard
TRSDOS
files on the source plus the language files which have the" S"
attribute in the directory listing.
Note: Do not attempt to merge and perform a conversion at the same time. Do the
conversion first and then you may merge.
Relocating System Files
For general applications, the standard location of the
TRSDOS
directory and system
files is most efficient. Each time you use
BACKUP
to duplicate a system diskette, the
system location is preserved. (In fact, the entire destination diskette becomes a
sector-for-sector duplicate of the source.)
However, in special cases, you might want to locate the directory and system files
in some area other than tracks
44-51.
For example, by putting this system
information on tracks
1-8,
you leave the rest of the diskette as a single extent. If your
application involves the creation and maintenance of a single data file, this
arrangement might be desirable.
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