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update sys usage documentation

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1483 6ac86273-5f31-0410-b378-82cca8765d1b
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Kenneth J Davis 2009-07-13 02:20:48 +00:00
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48
docs/sys.txt
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@ -1,17 +1,47 @@
SYS documentation by Jeremy Davis
Updated by Bart Oldeman
FreeDOS SYS 3.6
documentation by:
Jeremy Davis
Bart Oldeman
SYS's standard behavior is very similar (though in
my opinion improved) to that of other DOSes.
SYS (no options) should provide a general usage,
SYS /? (or no options) should provide a general usage,
and SYS CONFIG /help (or SYS CONFIG /?) should
provide usage for the new configuration options.
Admittedly its brief, but it is there.
Below is a more detailed documentation on its
usage (from memory, but I believe it is close to right).
The best documentation (and maybe only) is the
source itself.
The best documentation is the source itself, but
we try to keep this document updated.
Usage:
SYS [source] dest: [bootsect] [{option}]
source = A:,B:,C:\KERNEL\BIN\,etc., or current directory if not given
dest = A,B,etc.
bootsect = name of 512-byte boot sector file image for drive:
to write to *instead* of real boot sector
{option} is one or more of the following:
/BOTH : write to *both* the real boot sector and the image file
/BOOTONLY: do *not* copy kernel / shell, only update boot sector or image
/UPDATE : copy kernel and update boot sector (do *not* copy shell)
/OEM : indicates boot sector, filenames, and load segment to use
/OEM:FD use FreeDOS compatible settings
/OEM:DR use DR DOS 7+ compatible settings (same as /OEM)
/OEM:PC use PC-DOS compatible settings
/OEM:MS use MS-DOS compatible settings
/OEM:W9x use MS Win9x DOS compatible settings
default is /OEM:AUTO, select DOS based on existing files
/K name : name of kernel to use in boot sector instead of KERNEL.SYS
/L segm : hex load segment to use in boot sector instead of 0x60
/B btdrv : hex BIOS # of boot drive set in bs, 0=A:, 80=1st hd,...
/FORCEDRV: force use of drive # set in bs instead of BIOS boot value
/NOBAKBS : skips copying boot sector to backup bs, FAT32 only else ignored
/SKFN filename : set KERNEL.SYS input file and /OEM:FD
/SCFN filename : sets COMMAND.COM input file
/BACKUPBS [path]filename : save current bs before overwriting
/DUMPBS [path]filename : save current bs and exit
/RESTORBS [path]filename : overwrite bs and exit
SYS CONFIG /help
The simplest usage:
@ -27,7 +57,7 @@ be in the root directory of the current drive.
Complete form:
SYS [source] dest: [bootsect [BOTH]]
SYS [source] dest: [bootsect [/BOTH]]
Here dest is the same as before, but this time
you specify where KERNEL.SYS and COMMAND.COM are.