Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

◄Examples►  ◄Syntax►
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                                 SYS──Notes
 
How the SYS command copies files
 
The SYS command copies the files in the following order: IO.SYS, MSDOS.SYS,
COMMAND.COM and DRVSPACE.BIN.
 
No requirement for contiguous files
 
MS-DOS no longer requires the two system files to be contiguous. This means
that when you want to copy a new version of MS-DOS to a disk containing
system files for MS-DOS version 3.3 or earlier, you need not reformat the
disk.
 
Using the SYS command on compressed drives
 
The SYS command does not work on compressed drives. If drive C is compressed
and you need to make your hard disk bootable, use the SYS command on drive
C's host drive. (If you are using DriveSpace, to find out which is drive C's
host drive, type DRVSPACE /INFO C: at the command prompt.)
 
Using the SYS command on assigned drives and network drives
 
The SYS command does not work on drives that have been redirected by using
the ASSIGN, JOIN, or SUBST command. SYS also does not work on network drives
or drives redirected using INTERLNK.
 
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