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what tool to use to create a large fat32 partition?

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Offline Mlapse

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Re: what tool to use to create a large fat32 partition?
« Reply #20 on: 06 / May / 2019, 14:16:23 »
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@reyalp the error is gone when starting up, but it's a long wait.  :D

to test the reboot function, i first have to make it a dual partition card.
since stick does not recognise the large sd card although it's formatted in FAT32, what are the other options?

the method of creating a dual boot card in camera does not work anymore because the resulting size of the first partition is too small..or is that fixed in CHDK1.5?
« Last Edit: 06 / May / 2019, 15:05:20 by Mlapse »
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Offline reyalp

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Re: what tool to use to create a large fat32 partition?
« Reply #21 on: 06 / May / 2019, 16:01:09 »
Quote from: Mlapse on 06 / May / 2019, 14:16:23
to test the reboot function, i first have to make it a dual partition card.
since stick does not recognise the large sd card although it's formatted in FAT32, what are the other options?
I'd suggest gparted under linux. There are various liveusb / livecd distros that provide this. You can make the card bootable in camera afterward.

Since windows 10 now has some support for multi-partition removable media, you might be able to do the partition there, either with CLI commands or though the computer management storage / disk management snapin.

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the method of creating a dual boot card in camera does not work anymore because the resulting size of the first partition is too small..or is that fixed in CHDK1.5?
The partition is not too small, it only needs to contain DISKBOOT.BIN.

That said, the in camera partitioning has always seemed pretty dubious to me. You still need to *format* the partitions outside of the camera.
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Offline Mlapse

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Re: what tool to use to create a large fat32 partition?
« Reply #22 on: 06 / May / 2019, 16:31:14 »
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The partition is not too small, it only needs to contain DISKBOOT.BIN.
That said, the in camera partitioning has always seemed pretty dubious to me. You still need to *format* the partitions outside of the camera.

I have used it with succes up until 1.4,
the trick is as you say in the fact that you had to format in windows, so before windows could accept dual partition cards, you'd have to place the small build on partition one to be able to swap partitions in the camera and set up CHDK on partition 2.
With only 2Mb that was, and is, not enough for this method since CHDK1.4.

I'm guessing i'll go with the linux option.
Windows may recognise dual partition SD nowadays, but still can't make them.

« Last Edit: 06 / May / 2019, 16:44:57 by Mlapse »
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Offline reyalp

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Re: what tool to use to create a large fat32 partition?
« Reply #23 on: 06 / May / 2019, 16:46:34 »
Quote from: Mlapse on 06 / May / 2019, 16:31:14
With only 2Mb that was, and is, not enough for this method.
You should only need DISKBOOT.BIN or PS.FI2 to swap partitions.
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Re: what tool to use to create a large fat32 partition?
« Reply #24 on: 06 / May / 2019, 16:55:40 »
thanks to @zeno excellent work I first tried Stick, but since it does not support large SD cards, this method does not work (yet).
luckely he does have this link to fat32format on his STICK page...and that helped me later.

thanks to @dmitrys I had another option: Chimp, that does support large cards, but it had to download a build instead of me pointing it to an existing one and then I got this error: 1 is not a supported code page.
Since i found no answers to what went wrong, I did not know how to solve this and so I tried something old.

I used CHDK to make a dual partition card.
Put it into a windows 10 system, since that does recognise both partitions there is no need to swap active partitions anymore.

Formatted the 2mb partition with windows, did the large partition with fat32format.
Unpacked the build reyalp made for me yesterday
Placed it back in the camera and tried to use the card lock method, failed to autoboot as I expected after a format in windows.
So then I tried CHDK to make it bootable, but that failed to autoboot too....something i did not expect.
I tried several times but to no avail.

So I fired up Chimp again, just to make the card bootable, you do not need to download a build for that.
worked first time as described on the tin.

And I now have a dual partition bootable large SD card...have to do some testing.
After that i will set up a rig to test the reboot somewhere close to 24 days. 

It is really a shame that this dual boot method only works with FAT16+FAT32 and not FAT16+exFAT, but i'm guessing that is a Canon limitation.
Because as we discovered some posts back, the speed of the card has suffered dearly from this FAT32 conversion
« Last Edit: 07 / May / 2019, 06:40:14 by Mlapse »
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