Hardware allocation unit size (guiformat)

[PsychoBabble]

I downloaded guiformat to prepare a 128gb card but I don't know what to put as the allocation size.

I read somewhere that I had to enter 32 but 512 is the smallest number I can choose and it doubles all the way up to a max 65,536.

It also makes it an exFAT, if I'm not mistaken. Aren't I supposed to be getting a FAT32?

 

[PsychoBabble]

WTF? Stupid app keeps telling me the SD card is in use so can't be formatted. I've taken it out and put it back in again 3 times now! I even opened Task Master to check nothing else is in use.

 

[Hayato213]

Only allocation size the 3ds needs is 32kb, not any other value for allocation.

 

[PsychoBabble]

No, the guiformat app has a MINIMUM allocation size of 512.

And WTF now? I suddenly only have 50gb?

I don't know what's happened but I had 128gb and it's gone DOWN to 50!!!

Edit: thank god! I used windows own quick format and the SD's gone back UP to 128gb (well, 116. I don't now why 12gb have been missing all along).

 

[Hayato213]

No, the guiformat app has a MINIMUM allocation size of 512.

And WTF now? I suddenly only have 50gb?

I don't know what's happened but I had 128gb and it's gone DOWN to 50!!!

I told you to use 32k, under allocation size it is 32768.

 

[PsychoBabble]

(Homer voice) D'OH!

 

[NoNAND]

If you're having problems formatting it with guiformat, simply format it to NTFS and you'll be able to format it to fat 32 with guiformat afterwards.