Double boot on X5 ?

[Sampowaa]

Hi everyone. That's my first post on your forum .

I was wondering if it was possible to have double boot on X5 to chose at startup wether we want to run Rockbox or the original firmware.

[Tannhauser]

Hey there 

That option will probably be incorporated eventually, but at the moment it's not possible.

[gr1m r34p3r]

hopefully that function will come soon, i can't wait.

[Sampowaa]

Ok, thanks !

Hope it'll be incorporated soon !

[RaeNye]

Actually I'm thinking of doing this.

I need to rip the ADC_BUTTONS code and recompile the rockbox bootloader on different addresses; I already know where to locate this in the original firmware.

Hold on, as they say 

[Bagder]

Possibly you can find inspiration from the iriver code as that bootloader does this operation already.

[jwaite]

RaeNye
This is a HUGE option and a much needed one.

Good luck with undertaking!!

[blue334]

I do miss my radio, so at least until the radio driver is done a dual boot option would be welcome indeed. Thanks in advance RaeNye.

[infamis]

lol...I forgot all about the x5's radio...never used it except within the minutes of first opening it!

[poisonalchemist]

Another onus would be that it would get rid of the need to figure out how to code the video for the iaudio in rockbox, you could just use the original firmware.

[Bloody_Sorcerer]

i spotted a patch today on flyspray that claims to do dual-boot for the X5... didn't try it because i don't wanna run the risk of a brick im perfectly happy with the rockbox firmware without potentially bricking by going back with a patch or whatever

[RaeNye]

Yeah, that's my patch.

It WorksForMe^TM, and it should work for you too. 
In any case, you could just connect it via USB and reflash firmware.

See discussion in the tracker for more info, I reckon it would be released soon.

I don't see rockbox.org distributing cowon's firmware, BTW; you'd probably download the patch and apply it to your x5-fw.bin of choice.

R.

P.S.
I did think of using the OF's code, but for BBE rather than video.
Video will be supported sooner or later (the latter ) in RB for all capable targets;
BBE would never be as it is licensed/patented/whatever.

[The D]

Yeah, that's my patch.

It WorksForMe^TM, and it should work for you too. 
In any case, you could just connect it via USB and reflash firmware.

See discussion in the tracker for more info, I reckon it would be released soon.

I don't see rockbox.org distributing cowon's firmware, BTW; you'd probably download the patch and apply it to your x5-fw.bin of choice.

R.

P.S.
I did think of using the OF's code, but for BBE rather than video.
Video will be supported sooner or later (the latter ) in RB for all capable targets;
BBE would never be as it is licensed/patented/whatever.

Are you sure it won't brick the thing?

[RaeNye]

Whenever upgrading firmware, you only change the flash from 0x10000 and afterwards.
0x0-0x10000 contains the preloader, which handles things as USB-mode, charge-mode, etc.

It's as safe as flashing a beta version of cowon firmware.
(hey, I've flashed my x5 a dozen of times while debugging my code)

[ya1950]

The double boot firmware loads correctly into H3Mod and the graphics can be modified in the same manner as the regular Cowon firmware. I've tried it and it works but I haven't flashed the firmware yet. If this works then modified skins can be used with the dual boot without having to recompile for each skin. Any problem with this approach?