Sitenotice: 11/29/2018: The wiki is back. It turns out, some anti-virus product on my web server had an issue with the latest version of PHP. My server techs have resolved this issue, and things should be working again. During the investigation, I did restore to a backup from September. There is a chance that any changes done since then were lost, but I do not recall any edits. --OS-9 Al

8/30/2016: Massive re-work is being done on the InfoBox Templates. Read that page to keep up with the plan for that, and adding better keyword tags (categories) to all the pages. --OS-9 Al (talk) 15:28, 31 August 2016 (CDT)


From CoCopedia - The Tandy/Radio Shack Color Computer Wiki
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BACKUP is an utility to duplicate disks.

Syntax: Backup [<options>] [<sourcedevice>] [<destinationdevice>] [#<n>K]

Options  :

 e = exit if read error occurs
 f = backup from .dsk file
 s = single disk backup
 -v = do not verify writes
 -? = display help
 n memory in KB assigned to the BACKUP command

If <destinationdevice> is omitted, a single disk backup is executed.

If both devices are omitted, /d0 and /d1 are used.

Assigning more memory to the command speeds up the procedure, mostly when used with a single drive.

BACKUP performs a sector by sector copy, ignoring file structures. In all cases, the devices specified must have the same format (size, density, and so forth) and the destination disk must not have defective sectors.

A typical backup session

/DD:backup /d0 /d1

Ready to backup from /d0 to /d1 ?: y

disk label

is being scratched

OK ?:y

Sectors copied: $05A0

Verify pass

Sectors verified: $05A0