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Utilities to make FAT16, FAT32 and exFAT CF cards bootable

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Offline n00bE

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #30 on: 21 / December / 2010, 18:17:34 »
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Quote from: zeno on 21 / December / 2010, 17:53:41
Yes, you need to tell it to accept cards larger than 16Gb. Edit the macboot.properties file (double-click it) and change the line "maxsize=16000" to "maxsize=32000".

The limit is intended to prevent you accidentally formatting a hard disk.


NVM I had to change the maxsize (actually had to write it in at 33000) Thanks anyway, I have it now!
are you the author of this app?
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Offline zeno

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #31 on: 22 / December / 2010, 04:22:01 »
Sure am! I'll fix the app's arithmetic (32MB is more than 33000MB).

Dave Mitchell (aka Zeno)
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Offline whim

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #32 on: 22 / December / 2010, 06:10:26 »
@Pelican
@zeno

Thanks !

I've added links to your posts and programs to the first post

cheers,

wim
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Offline zeno

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #33 on: 22 / December / 2010, 08:00:49 »
@n00bE
I've fixed the 32GB bug and also properly excluded Terabyte-sized hard disks (a bug I discovered thanks to you!).
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Offline joachimrs

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #34 on: 22 / December / 2010, 12:58:19 »
hey,

thanks for great work.  Ive been trying to use MacBoot to prepare my SDcard to run MagicLantern on my Canon 550d.  Ive followed the instructions and included the necessary files, but it wont work.  What settings should I use in the MacBoot window?  Ive changed the max. to 32gb.

Thanks!
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Offline zeno

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #35 on: 22 / December / 2010, 16:15:12 »
@joachimrs

It's hard to tell what might be going wrong without more information. Turn debug on and run it again. Then email the contents of the log window to me (daveATzenoshrdlu.com) - hopefully I'll be able to see what's happening.

I should point out that all that MacBoot does is write some strings to the boot sector. It may well be doing that and the real problem is somewhere else. The log should tell me anyway.
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Offline Pelican

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #36 on: 05 / January / 2011, 01:40:54 »
It seems exFAT filesystem needs further changes. The new EOScard modify the checksums and the backup VBR.
Please test it and share your experiences.

http://pel.hu/down/EOScard.exe


(and if it works we can change the topic title too... :))
« Last Edit: 05 / January / 2011, 01:42:41 by Pelican »
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Offline zeno

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #37 on: 05 / January / 2011, 06:36:09 »
Pelican - I'd like to make my MacBoot app support exFAT cards under OSX if at all possible. I see over in the Magic Lantern forum some discussion of the issue - could you point me at a document that outlines what needs to be done?

By the way, the problem joachimrs reported above turned out not be to in MacBoot.
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Offline Pelican

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Utilities to make FAT, FAT32 and exFAT CF and SD cards bootable
« Reply #38 on: 05 / January / 2011, 10:52:51 »
Quote from: zeno on 05 / January / 2011, 06:36:09
Pelican - I'd like to make my MacBoot app support exFAT cards under OSX if at all possible. I see over in the Magic Lantern forum some discussion of the issue - could you point me at a document that outlines what needs to be done?
I've found useful info in this PDF:
http://www.sans.org/reading_room/whitepapers/forensics/reverse-engineering-microsoft-exfat-file-system_33274
But without testing, I'm not sure whether it's working or not.

Edit:
I've got feedback. It works.  8)

Guide: http://magiclantern.wikia.com/wiki/EXFAT_rerated_stuf
« Last Edit: 05 / January / 2011, 19:01:58 by Pelican »
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Offline zeno

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Re: Utilities to make FAT16 and FAT32 CF cards bootable
« Reply #39 on: 05 / January / 2011, 12:15:38 »
Thanks Pelican - I'd found http://shullich.blogspot.com/2009/12/vbr.html which looked useful.
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