BIOS Boot-Diskette

Howto: BIOS-Update per bootable Diskette

BIOS Update per bootable DOS-Diskette

A guidance how to create a Boot-Diskette (which contains the Freeware version of Caldera DR-DOS v7.03) to perform a BIOS update.

see also: BIOS-Update Howto: step-by-step instruction
see also: BIOS Update per bootable USB-Stick
see also: BIOS Update per bootable CD

The following tools are needed:

• rawrite - free Floppy image tool, Download from manufacturer's website
• Ultimate BIOS-Boot-Edition:
  - floppy.img (the boot image file contains the 3 DR-DOS system files command.com, ibmbio.com und ibmdos.com)
  download [1] Ultimate BIOS-Boot-Edition - 5.9MB, Download via uploaded.to
  download [2] Ultimate BIOS-Boot-Edition - 5.9MB, Download via megaupload.com

Instruction to create a DOS-Boot-Diskette

• Open the Ultimate BIOS-Boot-Edition and the folder boot_floppy_disk english
• Copy the boot image file floppy.img to your hard disk.
• Start rawrite and choose the menu Write (1.).
• Insert the path (2.) to the boot image file floppy.img.
• Click the Write-Button (3.) to create the bootable DOS-Diskette.
  
• Close rawrite.
• Rename the filename of your flashtool and the BIOS file, if they have more than 8 characters (not the file extension!).
• Copy your flashtool and the BIOS file onto the diskette.

Starting the BIOS-Update from Diskette

• First, go into your BIOS-Setup and change the Bootsequence to Floppy/Diskette (search for an option like Bootsequence, First Boot Device, or something similarly).

• Insert the Diskette and restart your PC. If all went well - DR-DOS starts and you can see the famous DOS-Prompt (A:\>).

• Now you can start the BIOS update. Remember: you can only backup your old BIOS onto the Diskette if sufficient space is available! But if your harddisk has a FAT16- or FAT32 partition, it would be a good idea to copy your 2 BIOS files to this partition, and to start the update/backup from your harddisk.

• See also: BIOS-Update Howto: step-by-step instruction

Happy flashing!