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- MKBT, Make Bootable
-
- Create any boot- floppy/image from any win32 platform with any media
- size...
-
- Version 2.0
-
- Last updated on Jan 7, 2003
- - What is MKBT? [#what]
- - Download [#download]
- - On what platforms can MKBT be run? [#platforms]
- - What is the command line syntax? [#syntax]
- - What is so unique about MKBT? [#aboutmkbt]
- - Are there any other bootsector installers? [#others]
- - Where can I find the latest version? [#latestversion]
- - How to build a bootable floppy [#build]
- - How to build a bootable 2.88MB floppy image file (without the
- drive) [#build288]
- - How does MKBT work? (technical) [#howitworks]
- - Bootsector installation [#install]
- - Bootsector copy (-c) [#copy]
- - Change log [#changes]
-
- > What is MKBT?
-
- [#what]
- MKBT is used for installing bootsectors. It supports FAT, NTFS
- [/fixnt4/] and RAW bootsectors.
-
- > Download
-
- [#download]
- To download MKBT use this link: MKBT v2.0
-
- > On what platforms can MKBT be run?
-
- [#platforms]
- MKBT is compiled as a win32 executable and runs on:
- * Windows 95/98/ME (FAT)
- * Windows NT4/2000/XP (FAT and NTFS)
-
- > What is the command line syntax?
-
- [#syntax]
- MKBT usage
-
- Usage:
- mkbt [switches] <source> <target>
-
- <source> The source file/drive which contains the bootsector to install
- <target> The target file/drive to install the bootsector on
-
- Switches: -v Verbose mode
- -c Copy mode (no install) used for copying the
- bootsector(s)
- -x Expert mode (do not check drive A or B only)
- USE WITH CAUTION!
- -l=<xxx> Set Volume Label to <xxx>
-
- Returns errorlevel 0 when OK, 1 when some error occurred.
-
- Examples:
- To install bootsector from file "bootsect.bin" onto drive A:
- -> mkbt c:\os\dos622\bootsect.bin a:
-
- To install bootsector from file "bootsect.bin" onto floppy image "288.img"
- -> mkbt c:\os\dos622\bootsect.bin c:\tmp\288.img
-
- To copy bootsector from a bootable floppy in drive A: to a file called
- "bootsect.bin"
- -> mkbt -c a: c:\os\dos622\bootsect.bin
-
- > What is so unique about MKBT?
-
- [#aboutmkbt]
- Unique things about MKBT are:
- * It supports transferring a bootsector to floppy images. This
- allows you to create a bootable 2.88MB floppy image without
- needing a 2.88MB floppy drive. See How to build a bootable floppy
- image file [#buildimage]
- * It is a win32 executable (not Dos)
-
- > Are there any other bootsector installers?
-
- [#others]
- Yes, I've found one other bootsector installer, "bootable.exe"
- [http://alexfru.chat.ru/programming/bootprog.zip]written by Alexei A.
- Frounze [http://alexfru.chat.ru/eindex.html]. It is a Dos executable
- and only supports transferring a bootsector from file to floppy drive
- (A: or B:).
-
- > Where can I find the latest version?
-
- [#latestversion]
- The latest version can be found on http://www.nu2.nu/mkbt/
-
- > How to build a bootable floppy
-
- [#build]
- You can use any Dos version, any Dos supported floppy disk size to
- build your bootable floppy. For each Dos version you must have the
- following 4 boot files:
- * The bootsector in a file called "bootsect.bin"
- You can capture the bootsector to a file using: mkbt -c a:
- bootsect.bin
- * IO.SYS (or IBMBIO.COM for Novell Dos)
- * MSDOS.SYS (or IBMDOS.COM for Novell Dos)
- * COMMAND.COM
-
- For this example we will use MS-Windows 98 (version 4.10.1998),
- therefor we put the files in a folder called "4101998". They must have
- "normal" attributes (not hidden/system/readonly!).
- You can now use makeboot.bat (which is include with the MKBT download
- zipfile).
- makeboot.bat takes one parameter, that is the directory where the Dos
- bootfiles can be found.
- Example: makeboot c:\os\4101998
- or when your in the "c:\os" folder, just makeboot 4101998
-
- > How to build a bootable 2.88MB floppy image file (without the drive)
-
- [#build288]
- Use bfi - Build Floppy Image [/bfi/].
-
- > How does MKBT work? (technical)
-
- [#howitworks]
- MKBT copies parts of the bootsector. The bootsector, the very first
- sector of a floppy disk, is 512 bytes long and looks like this:
- FAT Boot sector
- Offset Length Meaning
- 0x0 3 bytes Jump instruction
- 0x3 8 bytes OEM Name
- 0xB 25 bytes BIOS parameter block
- 0x24 26 bytes Extended BIOS parameter block
- 0x3E 448 bytes Bootstrap code
- 0x1FE 2 bytes End of sector marker
- The BIOS parameter block and extended BIOS parameter block contains
- the information:
- BIOS parameter block for FAT volumes
- Offset Length Meaning
- 0xB 2 bytes Bytes per sector
- 0xD 1 byte Sectors per cluster
- 0x0E 2 bytes Reserved sectors
- 0x10 1 byte Number of FATs
- 0x11 2 bytes Root entries
- 0x13 2 bytes Small sectors
- 0x15 1 byte Media type
- 0x16 2 bytes Sectors per FAT
- 0x18 2 bytes Sectors per track
- 0x1A 2 bytes Number of heads
- 0x1C 4 bytes Hidden sectors
- 0x20 4 bytes Large sectors
- Extended BIOS parameter block for FAT volumes
- Offset Length Meaning
- 0x24 1 byte Physical disk number
- 0x25 1 byte Dos: Current head
- NT: Dirty flag
- 0x26 1 byte Signature
- 0x27 4 bytes Volume serial number
- 0x2B 11 bytes Volume label
- 0x36 8 bytes Filesystem ID
-
- > Bootsector installation
-
- [#install]
- Below are the steps MKBT takes to install a bootsector:
- Steps for bootsector installation
- Step Source sector Buffer 1 Buffer 2 Target sector
- 1. Read source sector in buffer 1
- 2. Read target sector in buffer 2
- 3. Transfer bootsector parts from buffer 1 to buffer 2
- 4. Write buffer 2 to target sector
-
- > Bootsector copy (-c)
-
- [#copy]
- MKBT v1.3 (and higher) copy bootsector option copies the complete
- bootsector!
- (previous versions only copied those sections that where needed to
- install it)
-
- > Change log
-
- [#changes]
- Change log for MKBT [changes.txt]
- _________________________________________________________________
-
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- but please read our disclaimer: http://www.nu2.nu/disclaimer/
- Our license agreement can be found here: http://www.nu2.nu/license/
- To contact the author look here: http://www.nu2.nu/contact/bart/
- Copyright (c) 2000-2003 by Bart Lagerweij. All rights reserved.
-