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Just messing around...
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Old 03-04-2007
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Just messing around...

Not sure if this is useful but figured I'd share anyway.

Output of the 'file' command in linux:

otheros.bld: gzip compressed data, was "exoboot", from Unix, last modified: Mon Nov 27 01:23:01 2006


Change otheros.bld to otheros.gzip and do 'gzip -d otheros.gzip' and you get jus otheros file. The 'file' command now labels this file as just data. If you open it in a hex editor now, you will be able to see all the strings as plain text. A significant part of the beginning of the file consist of small chunks of data and then one large area, then the strings.

I couldn't get IDA to give me any ppc instructions so using a disassembler wasn't useful at all. I know the kboot source is openly available so I'm not sure of any usefullness of this right now. Some of the strings might provide a little insight on wat this paticular file does. When I looked up exoboot, all I got was information on a Dream Cast iso loader of some sort. Not exactly sure how that pertains to this file. Maybe going through the hex code will provide something useful.

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Old 03-05-2007
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*Edit* couldn't find the edit button...

Anyway I meant to say change the extension to .gz not .gzip

Quote:
From the time you post your post you have only 5 mins to edit it and this is why after that time you will see no more edit button.


Last edited by Starlight; 03-05-2007 at 12:12 PM.
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Old 03-05-2007
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For the sake of moding the PS3 this information is in fact priceless because there will be "other possibilites" for the "OtherOS" such as a third party PVR, my bet is that they will have information in their otheros.bld that is more powerful then what we can do right now (Video and Memory)

Can we possibly archieve this and retrieve after the next otherOS.bld program is released? That way we can pretend to be stupid on the subject.

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Old 03-05-2007
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Quote:
Originally Posted by hacked2123 View Post
For the sake of moding the PS3 this information is in fact priceless because there will be "other possibilites" for the "OtherOS" such as a third party PVR, my bet is that they will have information in their otheros.bld that is more powerful then what we can do right now (Video and Memory)

Can we possibly archieve this and retrieve after the next otherOS.bld program is released? That way we can pretend to be stupid on the subject.
Good point, I didn't think about that. Though its still pretty tedious to get any good information from the decompressed file since we're restricted to hex editing.

Whats really bugging me though is why my disassembler isn't giving me powerpc instructions. Could this not be a compiled program? Or maybe because it doesn't decompress into any particular executable format? The strings within lead me to believe it is a compiled executable, but who knows.

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