Here is the list of steps as text.
This list assumes you are using the default MyIDE-II shipping workbook available here:
viewtopic.php?f=19&t=13041) Insert the MyIDE-II in your XL/XE Computer and turn on the computer.
2) At the boot menu, insert your blank CF card.
3) From the boot menu, select MyBIOS
4) At the MyBIOS boot menu, press and hold
SELECT+START+OPTION until the MyBIOS partition menu appears.
5) Selection option '
I' to Initialize the CompactFlash card, then '
A'uto to let MyBIOS decide the particulars.
6) Select '
M'ake to make a new partition. The parameters to choose are Drive #'
A', Size '
65535', Density '
D', Name '
MYDOS', then press Return.
7) Assign the new partition '
A' to Atari drive #1 by pressing '
C'hange, then '
A', then '
1'.
8 ) Press '
ESC' to exit the partition menu, and make sure to answer '
Y'es when asked to save your changes.
You have created the new partition for MyDOS, but it is blank. When you exit the MyBIOS partition program, you will very likely just get a rainbow display as seen in the video, as there is nothing bootable on your new partition yet.
We are going to add a bootable copy of MyDOS to it now.
9) Power cycle the XL/XE computer to return to the Maxflash Studio boot menu.
10) Select MyBIOS again
11) At the MyBIOS boot menu, press
SHIFT to leave MyBIOS in memory and return to the Maxflash Studio menu.
12) Select '
MyDOS 4.53 Rescue Loader' to load MyDOS directly into memory and start it.
We now have MyDOS running in memory, along with MyBIOS and the correct partition table. All we need to do now is configure the drive information so MyDOS can see it, then write DOS files to make it bootable.
13) Select option '
O' to Change Config, then select drive '
1', then '
N'o to 'Remove Drive?', '
Y' to 'drive configurable?', '
Y' to 'High Capacity drive?' and '
65535' to 'Drive Size (in sectors)?', then press Return.
14) Select '
I'nitialize Disk to format drive #
1, answer '
Y' to format drive #1. MyDOS writes its VTOC slowly for large disks, so this will take a few seconds to complete. During this time you should see the blue activity LED on the CompactFlash cartridge blinking.
15) Select '
H' to Write DOS Files to drive '
1', and press Return.
Your new partition in drive #1 is now formatted with MyDOS and has a bootable set of MyDOS system files on it.
To verify the partition is working as expected, power cycle the Atari computer, select 'MyBIOS' from the Maxflash Studio boot menu, then press any key at the MyBIOS boot menu to boot from your new partition.