1. General
This program is used to create Microsoft compatible boot records. It is able to do the same as Microsoft "fdisk /mbr" to a hard disk. It is also able to do the same as Microsoft "sys d:" to a floppy or FAT partition except that it does not copy any system files, only the boot record is written. Specifications of boot records is taken from http://www.geocities.com/thestarman3/asm/mbr/MBR_in_detail.htm
The program is useful when using Linux to restore a backup of a reference Microsoft Windows installation.
Author of this program is Henrik Carlqvist (henca@users.SourceForge.net), it is available for download from http://ms-sys.sourceforge.net/
2. Installation
Step 1, unpack the archive:
tar -xzvf ms-sys*.tgz
Step 2, compile:
cd ms-sys
make
Step 3, become root and install
su (and give password)
make install
3. Examples
Please note that Windows ME is not useful for making standalone bootable floppies. However, Win9x and DOS works fine with example 1 and example 3.
Example 1, creating a 1.68 MB bootable floppy: This example assumes that you have your windows installation mounted at /dosc and also have mtools and fdformat installed.
fdformat /dev/fd0u1680
mformat a:
ms-sys -w /dev/fd0
mcopy /dosc/io.sys a:
mcopy /dosc/msdos.sys a:
mcopy /dosc/command.com a:
Example 2, restoring a backup to a fresh hard disk:
Step 1, use GNU parted to create your FAT32 partition and file system:
parted (then create partition and file system)
Step 2, write the MBR:
ms-sys -w /dev/hda
Step 3, write the FAT32 partition boot record:
ms-sys -w /dev/hda1
Step 3b, write partition info and drive id to partition:
ms-sys -p /dev/hda1
This step might be needed depending on which program was used to format the partition. If the program was formatted with gnu parted this step could be skipped. It is also possible to combine this flag with the previous step like this: ms-sys -wp /dev/hda1
Step 4, mount your new filesystem:
mount /dev/hda1 /mnt
Step 5, read your backup
cd /mnt; tar -xzvf /path/to/my_windows_backup_file.tgz
Example 3, creating a bootable 2.8 MB floppy image for use with an el-torito bootable CD:
dd if=/dev/zero of=floppy288.img bs=1024 count=2880
/sbin/mkdosfs floppy288.img
ms-sys -1 -f floppy288.img
su
mount -o loop floppy288.img /mnt
cp msdos.sys /mnt/
cp io.sys /mnt/
cp command.com /mnt/
(it might also be a good idea to add a config.sys and autoexec.bat with
CDROM support)
umount /mnt
exit
cp floppy288.img cd-files/eltorito.img
mkisofs -b eltorito.img -c eltorito.cat -o cdimage.iso cd-files
(burn the file cdimage.iso to a CD with cdrecord or another program)
4. Documentation
There is a man-page for ms-sys, and you will get some help by typing:
ms-sys --help
5. Known problems
There have been reports about unbootable FAT32 partitions created with "mformat -F c:". One workaround is to use gnu parted to create the partition instead. Since version 1.1.3 ms-sys has the switch -p which is supposed to fix this problem. The problem has also been reported on partitions formatted with mkdosfs and mkfs.vfat.
Unfortunately, there have also been some reports that the switch -p does not always fix the problem above. That problem might be fixed since version 2.1.1. I need success-stories or new problem reports to verify that version 2.1.1 really fixes the problem.
There have been yet another problem reported about the -p switch and gnu
parted together with Linux kernel 2.6. The problem is that kernel 2.6 might
report a geometry incompatible with other operating systems. There is a
detailed description of the problem at
http://groups-beta.google.com/group/linux.kernel/msg/404d8683ce302cf2
There have been reports about problems when compiling against uClibc. More problem reports or suggestions of fixes are welcome!