Dualbooting Cowon Iaudio M3

[Dutchi Merengue]

anyone know how it can be done? i know its been done on the x5 which is basically the same thing but i cant find that file or one for the m3 anywhere, can anyone help me out?

[Dutchi Merengue]

does anyone at least know the steps to doing it with the cowon m5/x5? maybe if i do the steps required for that one i can somehow patch the original m3 firmware, can anyone help?

[wodz]

M3 is rather rare hardware. Try to catch amicon on IRC - he might know.

[LambdaCalculus]

The manual actually has the answer you're looking for:

http://download.rockbox.org/daily/manual/rockbox-iaudiom3/rockbox-buildch2.html#x4-110002.2.2

Installing the bootloader

The Iaudio M3 has a built-in bootloader which performs the firmware update and can also access the hard drive via USB. The Rockbox bootloader can therefore be very minimalistic, as it does not require its own USB mode. This makes it less dangerous to install the Rockbox bootloader as you can always restore it using the Iaudio bootloader.

Note: The Rockbox bootloader overwrites the original firmware, making it impossible to dual-boot.

[saratoga]

^^ I think at one point there was a way to hack dual booting on the X5, although its not mentioned in the manual.  The OP is probably looking for something similar on the M3.

[bluebrother]

^^ I think at one point there was a way to hack dual booting on the X5, although its not mentioned in the manual.  The OP is probably looking for something similar on the M3.

For the M5 is't actually not a hack anymore at all -- support for generating a dualboot bootloader has been added during DevCon2011. However, Rockbox Utility doesn't have support added, so you need to create the file to flash manually (using mkboot), and I don't think it has been documented in the manual.

As far as I can see from the code this also works for the M3.