====== Using grml for bios updating ======

===== Common update procedures =====

  - Download the bios files for DOS.
  - Use actual GRML (>1.1), for older GRML versions take look below.
  - Install grml to [[usb]] (with grml2usb).
  - Update the FreeDOS image of GRML with the needed bios files.
  - Boot off the usb stick with bootimage dos.


===== Update FreeDOS image =====

  - Boot your GRML off usb
  - cd /live/image and search for balder10.imz
  - unpack it with

      # gunzip <balder10.imz >balder10.img

  - Mount it to add the bios files you need

      # mount -o loop balder10.img /mnt/test

  - copy your needed bios files into /mnt/test
  - Clean up

      # umount /mnt/test
      # gzip <balder10.img >balder10.imz

  - maybe test your created image with

      # qemu -fda balder10.img




===== Update FreeDOS image for GRML <1.1 =====

GRML older than 1.1 does not provide enough space on the FreeDOS image to just copy the bios files over there.

You need to create a 2880 superfloppy based FreeDOS image.
Use this to create a superfloppy based FreeDOS image and use the description above if you need help to install the bios files onto the new image.

  - Boot your GRML off usb into X as you will need qemu
  - cd /live/image and search for balder10.imz

     # gunzip <balder10.imz >balder10.img

  - create your new image

     # dd if=/dev/zero of=big.img bs=1024 count=2880

  - Equip your new image with FreeDOS

     # qemu -fda balder10.img -fdb big.img
       > format b:
       > sys b:
       > xcopy /E /N a: b:


===== Create a standalone FreeDOS on usb =====

If everything else does not work, your last resort is a stand alone FreeDos, either on a floppy or on usb.

If your bios files are >1.2MB you should choose the usb ;).

  - Boot GRML into X (qemu)
  - Look above on how to get the uncompressed balder10.img
  - Insert your usbstick (i'll assume it to be /dev/external)
  - Boot FreeDOS

     # qemu -boot a -fda balder10.img -hda /dev/external

== Depending on your stick (bootable, allready formated) ==
  * fdisk c:
  * format c:
  * sys c:

===== Download the bios files for DOS =====

==== Example for Intel 965 ====

  * Download the IB bios files for DOS (also called integrators files for older bios versions)
  * unzip the .exe file you downloaded (it's an archive)
  * For newer biose you get a few files beside an SW.EXE
  * unzip SW.EXE and copy it's contents to your bootable FreeDOS.