I thought there was a guide somewhere as well, but couldn't find it. Think the CF card needs formatting as "FAT"... ?rubber_jonnie wrote: Tue Mar 22, 2022 10:47 pm Hmm, I thought I'd done a guide for this already, but yes, you need to set up the partitions for TOS & Window at the same time, which is done through the HDDRIVER config tool. you don't need a FAT32 partition, you just need to format it right on the ST.
As @exxos said, just go for all 256MB partitions with HDDRIVER and don't forget with V11 you can use Blitter acceleration too.
Can all registered uses please login, even just for a few minutes..
It helps build a picture where our "good traffic" is coming from..
Thanks :)
It helps build a picture where our "good traffic" is coming from..
Thanks :)
Using HDDriver 10.14 to Create Eight Partitions (First One Bootable) on a 4GB SD Card
Re: Using HDDriver 10.14 to Create Eight Partitions (First One Bootable) on a 4GB SD Card
- rubber_jonnie
- Site Admin

- Posts: 15084
- Joined: Thu Aug 17, 2017 7:40 pm
- Location: Essex
- Contact:
Re: Using HDDriver 10.14 to Create Eight Partitions (First One Bootable) on a 4GB SD Card
Actually I just checked my Mega 4 which has a CF card and the partition sizes, including C: are about 512MB with HDDRIVER 11, but I am using TOS 2.06 in both the Mega 4 and the MSTE which has a CosmosEx and SD card.
When you select the drive to partition, there is a compatibility button in there that allows you to use TOS and Windows compatibility together so the cards can be used under either TOS or Windows.
I didn't tick the byte swap option and it worked just fine. Experiment a bit see what you get. I would advise that you wipe the SD or CF card beforehand, it just works a bit better. I usually do this using diskpart under windows and the clean command.
When you select the drive to partition, there is a compatibility button in there that allows you to use TOS and Windows compatibility together so the cards can be used under either TOS or Windows.
I didn't tick the byte swap option and it worked just fine. Experiment a bit see what you get. I would advise that you wipe the SD or CF card beforehand, it just works a bit better. I usually do this using diskpart under windows and the clean command.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Using HDDriver 10.14 to Create Eight Partitions (First One Bootable) on a 4GB SD Card
Ok, so thanks to all for their help...I managed to get it working!
I wiped the CF card as @rubber_jonnie suggested, then popped it into the ST, booted from floppy & configured the whole CF card as a single partition (Windows + TOS compatible but no byte swap), rebooted, then installed HD Driver on the CF card & all is working...I can transfer files via the CF card between PC and ST just as advertised!
Really cool!
I wiped the CF card as @rubber_jonnie suggested, then popped it into the ST, booted from floppy & configured the whole CF card as a single partition (Windows + TOS compatible but no byte swap), rebooted, then installed HD Driver on the CF card & all is working...I can transfer files via the CF card between PC and ST just as advertised!
Really cool!
- rubber_jonnie
- Site Admin

- Posts: 15084
- Joined: Thu Aug 17, 2017 7:40 pm
- Location: Essex
- Contact:
Re: Using HDDriver 10.14 to Create Eight Partitions (First One Bootable) on a 4GB SD Card
SplendidJezC wrote: Wed Mar 23, 2022 10:17 pm Ok, so thanks to all for their help...I managed to get it working!
![]()
![]()
![]()
![]()
I wiped the CF card as @rubber_jonnie suggested, then popped it into the ST, booted from floppy & configured the whole CF card as a single partition (Windows + TOS compatible but no byte swap), rebooted, then installed HD Driver on the CF card & all is working...I can transfer files via the CF card between PC and ST just as advertised!
Really cool!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...