Dreamcast SD card cant be read...kinda?

Metoroid0 · Nov 24, 2017

Coto said:
You are almost there!

Well how about before re-re-soldering you use a 2012 dreamshell iso (burn to CD), and use any 2GB card? (I can't recall if I used a 2GB or a 4GB SDHC) but I think other users had problems as well running latest dreamshell.

If you have an old bootloader that works, you could try old and new cards. If at least one of them works, then you know who to blame (latest dreamshell)

Well i already did it, and its pretty good, so let it be...soldering i mean...

Anyway, i dont have spade CD's, i tried dreamshell from 2015 and 2014...but tomorow (its 00:00h here now) ill buy a CD to burn onto...

Can you please tell me what exactly to burn (like link) adnd what exactly to put in my sd card, and what folder structure should be.
I kinda know, but since youre experienced, id feel better if youd just tell me please?

Unfortunaly i only have micro SD's and these regular ones for now. i do play on buying SanDissk 16 or8GB class4 card, since i heard those are the best for dreamshell...

Coto · Nov 24, 2017

Metoroid0 said:
Well i already did it, and its pretty good, so let it be...soldering i mean...

Anyway, i dont have spade CD's, i tried dreamshell from 2015 and 2014...but tomorow (its 00:00h here now) ill buy a CD to burn onto...

Can you please tell me what exactly to burn (like link) adnd what exactly to put in my sd card, and what folder structure should be.
I kinda know, but since youre experienced, id feel better if youd just tell me please?

Unfortunaly i only have micro SD's and these regular ones for now. i do play on buying SanDissk 16 or8GB class4 card, since i heard those are the best for dreamshell...

This is exactly how I remember the mod:

https://multimedia.cx/eggs/dreamcast-sd-adapter-and-dreamshell/

(the delivery part is your SD adapter, you can skip it...)

Basically format to FAT16/32 the card, default sector size, copy the files as told in there. Burn the CD, then boot the CD. The minimal bootstrap is loaded from CD, but then depending on the CD image you have burn (the middle in that guide : DreamShell 4.0 RC 3 + Boot Loader), it will load the OS files from SD.

If the dreamshell OS loads, then the SD mod is successful.

Metoroid0 · Nov 25, 2017

ok, i bought CD's tried RC1 from 2012 And its saying "no DS_CORE.BIN"but i clearly have it on SD. Also first time i tried i got it to read dreamshell from SD than i turned it off ad not its saying that...

EthanAddict · Nov 26, 2017

Metoroid0 said:
Linux? Why do i need Linux? I dont by the way, i use Windows 7

Because the tool I mentioned works on Linux(and other UNIX variants). I never saw a port of GParted on Windows

Metoroid0 · Nov 26, 2017

I got things to work but i got error when loading iso from sd root. I downloaded iso from isozone from sd iso section. Anyway, i have error when loading the game saying...

DS_ERROR: Loading ISO from this device is not supported
DS$: _

WHAT DOES THIS MEANS? And abowe that, every line say OK... Etc...

Coto · Nov 26, 2017

Metoroid0 said:
I got things to work but i got error when loading iso from sd root. I downloaded iso from isozone from sd iso section. Anyway, i have error when loading the game saying...

DS_ERROR: Loading ISO from this device is not supported
DS$: _

WHAT DOES THIS MEANS? And abowe that, every line say OK... Etc...

It means the iso you tried to run is not compatible. If you used the older 2012 image iso support was very, very beta IIRC. I just used ISO loading to load homebrew stuff so I never cared.

Also I tried looking that DS_ERROR message in the latest source code, it is not there. But so far your SD mod is successful, congrats!

Metoroid0 · Nov 27, 2017

Coto said:
It means the iso you tried to run is not compatible. If you used the older 2012 image iso support was very, very beta IIRC. I just used ISO loading to load homebrew stuff so I never cared.

Also I tried looking that DS_ERROR message in the latest source code, it is not there. But so far your SD mod is successful, congrats!

NO, it IS compatible!
I replaced the wires with thicker ones. I used these...

PC-Computer-Case-Front-Panel-USB-2-0-Audio-Port-Mic-Earphone-Cable-Motherboard-Connection-Cable.jpg

I stripped them and replaced them on motherboard and SD reader, and now it works every time without any problems whatsoever.
Im using RC1 Dreamshell CDI disc. Not Boot loader disc, but Dreamshell... This one: http://www.dc-swat.ru/download/dc/ds/4.0/DreamShell_4.0.0_RC1_CDI_Image.7z

But i downloaded DreamShell 4.0 RC 1 + Boot Loader FOr DS files.
(ok, im writing these details so it is clear how i did it if anyone reads this and having problems. I didnt tried RC4, but it probably works also, since it was wires problem. Dont use thin wires, use normal USB wires)

As for SD formatting, I formated my kingston 16GB card, class 10, to FAT32.. i mean i didnt choose anything, i let it as default and i a did quick format, and it worked ok.
Also i used "SD Card Formatter" and just clicked format, and thats it.

Now all i need to do is to cut some holes and pack wires inside since i have VGA mod wires inside also, it would be tough and crowdy xD

Thanks for all the help!

If i had any other problems ill make sure to post here.

Oh and..thanks

diero15 · Mar 29, 2020

It could help you with the problem of the mod you must glue the cables on the pins that are with the white circle and test the continuity of the order of the pins of the serial port

If you see there are 4 pins missing the GND (-) pin and the 3.3vc pin that you will find in the pins of the pins of the power supply of the dreamcast to these two you must place a 47uF 16v capacitor

Dreamcast SD card cant be read...kinda?

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