These disk images were created with Winimage.

Both of these disks contain a bootable version of Micro Byte DOS 3.3. The Micro Byte version is based on MSDOS 3.3 however it has a custom boot sector and bootloader. Note this version of DOS is designed to work with the Micro Byte PC230 range. These images were created using files copied from the original Micro Byte items from a source on DriversGuide; as such they are not exact however they work well enough to set up the PC230.

As such the ONLY issue I have run into is that the automated installer does not work (INSTALL.EXE). It complains about the disk 'not being a boot disk'. I troubleshooted this for a while; but gave up when it was apparent it just walked through a very simple series of steps.

These disk(s) must be used to properly format and initialise the internal HDD. Using a 'vanilla' version of MSDOS 3.3 without the custom boot sector / boot loader will result in the HDD being unbootable.

To setup your PC230 perform / note the following:

- SCSI2SD ADAPTERS DO NOT WORK!!! It will work perfectly (if you boot off a floppy) but WILL NOT BOOT BY ITSELF. After trying a plethora of settings on the SCSI2SD I switched to a physical SCSI HDD and it booted fine.

- Check your SCSI HDD is set to either SCSI ID 1 or greater *set jumpers on the HDD*. This is important!

- Write each disk image to a 720K, 3.5" floppy disk. The PC230 will not recognise a 1.44MB disk (until it is setup) so subsitution is not permitted.

- Put disk 1 into the PC230 and power up. The system will boot, load the SOFTBIOS, reboot, then continue into DOS..

- Tweak the BIOS settings. Put in disk 2 and type PC230. This loads the BIOS setup. NOTE you must have booted from DISK 1 for this to work!! Disk 1 loads the softbios, Disk 2 runs the configuration program. In the configuration program change the number of hard disks to whatever you have installed (usually 1). Make sure the SCSI ID HDD start value is equal to 1. DO NOT USE SCSI ID 0. For some reason the default PC230 system SCSI ID is 0 (not 7 like usual). Next actually check the SCSI ID of the PC230 (there is a menu option) is set to 0. I tried modifying this to 7, and then running a drive on SCSI ID 0, but it didn't work. Finally check the boot order is something like FLOPPY then HDD. 
In summary - Number of HDD 1, SCSI ID of first hard drive 1, check PC230 SCSI ID is 0, check boot order. I also chose to disable the RAMDISK as I wanted to use that memory in the HMA. It's up to you what you do here, just remember if you leave it present FDISK will see it - make sure you partition the physical HDD, not the RAMDISK! There are a plethora of other settings here too - Use the very detailed help system. It really clarifies whats going on and I easily figured out how to configure the HMA. Once this is all done the system will reboot; make sure you switch BACK to disk 1 when this happens. 

- Use FDISK*** on disk 1 to partition your HDD. Note this is based on DOS 3.3 and the max partition size is ~30MB. Also see notes in the next 2 steps...

*IF YOU HAVE A NON DOS PARTITION you will not be able to delete it using FDISK. If so create a DOS 5.0 720k boot disk including DOS 5.0 FDISK, use DOS 5.0 FDISK to delete the partition, then reboot using PC230 Disk 1, create a new partition using the PC230 DOS 3.3 version of FDISK.

*IF FDISK DOESN'T FIND A HDD, OR THE HDD SIZE IS VERY SMALL you have issues with BIOS settings. The very small HDD is the RAMDISK setup by the PC230. The lack of a fixed disk or only the RAMDISK indicates the BIOS doesn't know one is connected. Disable the RAMDISK in the BIOS and troubleshoot!
 
- Use FORMAT on disk 1 to format the HDD. NOTE: I didn't use the /s option, just FORMAT C: is sufficient!

- Use SYS C: on disk 1. Eventually it will transfer the system* plus it will copy SOFTBIOS.COM (a hidden system file) from DISK 1 onto the HDD. *NOW YOU MUST COPY COMMAND.COM from DISK 1 onto C:. SYS does not do this automatically as it's been hacked to just update the boot sector, IO.SYS and MSDOS.SYS. A simple copy a:\command.com c:\ will do the trick.

- Remove the floppy disk and reboot. The machine should now boot onto the HDD.

- Finally you can copy the relevant files from disk 1 and 2 (manually) into a c:\DOS33 directory. I'll assume you are proficient with DOS so I won't go into this. The main this is that PC230.exe ends up in the DOS33 directory as you may need it to configure the bios in the future.

BEST OF LUCK!
