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MultiBoot PSP
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28. December 2007 @ 22:41 |
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My Brief History:
I've taking several courses on C, C#, C++,and Java. I have a good understanding of linux and the PSP. I've coded my own homebrew. I started at the "Hello World" app and created a very basic keno-like game. But I'm no D_A.
My question:
The PSP-200x (Slim) has 66MB of flash space. The flash0 is allocated ~40.9MB, but only ~22.4MB is actual being used on a 3.71 M33-4 with custom XMB, Gameboot, etc (I believe default without any additions is around 20MB). This leaves nearly half of the flash free on a PSP-200x. Is it possible to "dual-boot" a PSP. I've tried to experiment by crossing the GRUB boot loader into a 'main-menu' for dual-booting, allowing you to choose which FM (3.60 M33 or 3.71 M33-4), but ended up FUBARing my PSP. I recovered it thanks to Pandora's Battery Emerald Eddition(very useful by the way). I'm more than willing to share my source with anyone with experience in the linux kernel and homebrewing. I would really like help from someone with personal experience on coding Firmware, but at this point I'll take help from anyone.
There is no excuse NOT to mod! Don't follow the rules, make them!
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Rorro_Rey
Suspended due to non-functional email address
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28. December 2007 @ 23:24 |
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So what exactly does this mean...that you can have two firmwares in one..??
I'm
ROGDRIK, this is just my old profile...that i couldn't remember the password to...XD.
So I Ain't No NooB...Iight!!
My PsP life [TA-082] (2.50) > 2.60 > 2.70 > 2.71 > 2.80 > 2.71 > 1.50 > 3.40 OE-A > 3.52 M33 > 3.52 M33-4 > 3.71 M33-2(Unstable) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-2 (Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > (SEMI-BRICK) > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-3(XMB Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33-4 (Yes..!!..It's Working With No Bugs..!!)
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29. December 2007 @ 00:28 |
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Originally posted by Rorro_Rey:
So what exactly does this mean...that you can have two firmwares in one..??
Yup. Without any modchips. Since the PSP-200x has double the flash, but the current FM only utilizes half of it, in theory in could hold 2 FM. Its like a Pandora Battery and Magic stick. It boots to ms, which has the GRUB boot loader (modified myself). From there it allows you to boot to which FM you want. I have successfully (I think..) partitioned the flash0 into two equal parts and the GRUB boot loader allows you to choose which partition the flash boots to. Each partition is roughly 20.4MB. I had to erase some features to fit them both. It boots to a menu, but every time I select a partition to boot to it crashes completely-no Recovery Mode, no nothing.
EDIT:
I really want it known, that if this works, the possibilities are endless. You could beta test the next CFM without fear of losing the FM you have installed already. You could run 3.71 M33 and Official FM at the same time! If I could get D_A's help, he might even figure out to use this to allow PSP-200x models to support 1.50 kernel natively!
There is no excuse NOT to mod! Don't follow the rules, make them!
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 00:34
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Rorro_Rey
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29. December 2007 @ 00:41 |
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Oh man that would be sweet...i hope that someone who knows more about hacks replies and helps you man....but im gonna stay subscribed to this thread to check out how your idea turns out...;)
Hope it works someday...:D
But still i would need a Slim psp im stuck with PHAT for now...:(
I'm
ROGDRIK, this is just my old profile...that i couldn't remember the password to...XD.
So I Ain't No NooB...Iight!!
My PsP life [TA-082] (2.50) > 2.60 > 2.70 > 2.71 > 2.80 > 2.71 > 1.50 > 3.40 OE-A > 3.52 M33 > 3.52 M33-4 > 3.71 M33-2(Unstable) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-2 (Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > (SEMI-BRICK) > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-3(XMB Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33-4 (Yes..!!..It's Working With No Bugs..!!)
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29. December 2007 @ 00:47 |
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Oh come on! There has to be someone with linux and homebrew programming skills out there somewhere! This is AfterDawn! They get over 100,000 hits a day! I thought if any forum would have programmers on it, it would be afterdawn!
EDIT:
Wouldn't it be nice if I could attract D_A attention to this project. Or even Hellcat.
There is no excuse NOT to mod! Don't follow the rules, make them!
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 00:48
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Rorro_Rey
Suspended due to non-functional email address
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29. December 2007 @ 00:48 |
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Yeah man..!!
That would be so cool if you got their attention...but what websites do you think they get on?
I'm
ROGDRIK, this is just my old profile...that i couldn't remember the password to...XD.
So I Ain't No NooB...Iight!!
My PsP life [TA-082] (2.50) > 2.60 > 2.70 > 2.71 > 2.80 > 2.71 > 1.50 > 3.40 OE-A > 3.52 M33 > 3.52 M33-4 > 3.71 M33-2(Unstable) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-2 (Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > (SEMI-BRICK) > 3.52 M33 > 3.52 M33-4 > 3.71 M33 > 3.71 M33-3(XMB Slow) > 1.50 > 3.52 M33 > 3.52 M33-4 > 3.71 M33-4 (Yes..!!..It's Working With No Bugs..!!)
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 00:55
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Senior Member
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29. December 2007 @ 01:07 |
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try sniffing around over on maxconsole.net D_A is a moderator over there in the psp section, so is Mathieulh...You might even run into the likes of Chilly Willy and The Joker while you are there.
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 01:08
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Member
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29. December 2007 @ 09:41 |
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I got an interesting email. The email address is dax4psp@yahoo.com:
Dear Crazykid3,
I have recently heard of your goal to create a dual-booting PSP. This is a concept I haven't even thought of. If you would like my help, I would gladly do so. If you reply to this e-mail accepting my help, please compress into a rar file the source code of your project and I will look at it immediately.
Sincerely,
Dark_AleX
While I'd love nothing more than to believe that this is from the real D_A, I have to say no. If a moderator is reading this, I'd like to know if any user that has read this thread has the e-mail address as above.
EDIT:
I enjoy a good joke as much as anyone, but I'm trying to find legitimate programmers to help me. Please don't waste my time.
There is no excuse NOT to mod! Don't follow the rules, make them!
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 09:45
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Senior Member
1 product review
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29. December 2007 @ 09:49 |
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Well, since I have 3 years C++ training, it IS possible for dual-firmwares on one flash chip. I can try to help Crazykid.
This message has been edited since posting. Last time this message was edited on 29. December 2007 @ 10:00
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Member
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29. December 2007 @ 14:29 |
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Originally posted by CKhaleel:
Well, since I have 3 years C++ training, it IS possible for dual-firmwares on one flash chip. I can try to help Crazykid.
Great! Any experience writing homebrew or dealt with linux?
There is no excuse NOT to mod! Don't follow the rules, make them!
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Senior Member
1 product review
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29. December 2007 @ 15:48 |
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I coded a small piece of homebrew...and yes, I had Linux when viruses broke my Windows...
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Moderator
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29. December 2007 @ 19:37 |
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Quote:
If a moderator is reading this, I'd like to know if any user that has read this thread has the e-mail address as above.
Couldn't tell ya - we're not privy to that info :)
I'll leave the email posted - since it's a bad joke they can get hit w/ all the spam :)
I like your idea too Crazykid3.
I'd love to help but my C++ is maybe a few steps above the
'Hello World' :) I will keep my ears open though in case I run into someone who can also help.
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Member
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29. December 2007 @ 21:52 |
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Originally posted by binkie7:
Quote:
If a moderator is reading this, I'd like to know if any user that has read this thread has the e-mail address as above.
Couldn't tell ya - we're not privy to that info :)
I'll leave the email posted - since it's a bad joke they can get hit w/ all the spam :)
I like your idea too Crazykid3.
I'd love to help but my C++ is maybe a few steps above the
'Hello World' :) I will keep my ears open though in case I run into someone who can also help.
Thanks mod!
There is no excuse NOT to mod! Don't follow the rules, make them!
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Senior Member
1 product review
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30. December 2007 @ 12:43 |
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So, when are we gonna do this?
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Member
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30. December 2007 @ 12:51 |
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If you PM your e-mail address, I can compress the files and send it to you.
There is no excuse NOT to mod! Don't follow the rules, make them!
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Senior Member
1 product review
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30. December 2007 @ 13:46 |
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Originally posted by Crazykid3:
If you PM your e-mail address, I can compress the files and send it to you.
OK.
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Senior Member
2 product reviews
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30. December 2007 @ 23:17 |
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Hate to be a party-pooper, but this is NOT possible, for the simple reason that the 20+ mb of free space is not specifically for flash0. It is for the UMD cache function, which shortens the amount of times the PSP needs to read from a UMD disc. It cannot be used to multi-boot a PSP, not even DaX could do that for us. Why do you think he had so much trouble with the file sizing of 3.71 M33? He knew he couldnt use the flash as flash0, nuff said.
Does anorexia induce constipation?
~~~~~~~~~~~~~~
Ive become so paranoid, that Im paranoid about my paranoia....
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MaTiAz44
Newbie
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30. December 2007 @ 23:59 |
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Originally posted by LeadBaron:
Hate to be a party-pooper, but this is NOT possible, for the simple reason that the 20+ mb of free space is not specifically for flash0. It is for the UMD cache function, which shortens the amount of times the PSP needs to read from a UMD disc. It cannot be used to multi-boot a PSP, not even DaX could do that for us. Why do you think he had so much trouble with the file sizing of 3.71 M33? He knew he couldnt use the flash as flash0, nuff said.
ehhh?
The FLASH doesn't have squat to do with UMD cache, it's the extra RAM.
Crazykid3: Why are you trying to bootstrap the firmware with Grub? It makes no sense to port grub for PSP. Just hack the SCE firmware and make it minimal, much better and easier way.
Guess how the older CFW's with 1.50 bootstrap worked. Yep, that's right, dualboot. They first boot into 1.50 and from there, apply some LoadCore patches and then reboot into the secondary kernel (aka 2.71 or 3.02, etc. etc. depending on the firmware revision of course). No grub there.
And if you're trying to ehh, bootstrap the SCE firmware from Grub, you don't seem to have such a good understanding of the PSP.
The idea is totally possible, but the way you tried is far from the right one.
This message has been edited since posting. Last time this message was edited on 31. December 2007 @ 00:17
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Moderator
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31. December 2007 @ 00:17 |
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Watch the language MaTiAz44 - keep it clean
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Senior Member
1 product review
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31. December 2007 @ 09:44 |
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I don't understand how GRUB can load PSP firmware.
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Member
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31. December 2007 @ 11:06 |
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Originally posted by CKhaleel:
I don't understand how GRUB can load PSP firmware.
It's not exact Grub. I based my boot loader on the premises of its design. Grub isn't even in C++. I had to code my own boot loader, Grub is only a guideline.
There is no excuse NOT to mod! Don't follow the rules, make them!
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Senior Member
2 product reviews
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31. December 2007 @ 13:08 |
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Originally posted by MaTiAz44:
Originally posted by LeadBaron:
Hate to be a party-pooper, but this is NOT possible, for the simple reason that the 20+ mb of free space is not specifically for flash0. It is for the UMD cache function, which shortens the amount of times the PSP needs to read from a UMD disc. It cannot be used to multi-boot a PSP, not even DaX could do that for us. Why do you think he had so much trouble with the file sizing of 3.71 M33? He knew he couldnt use the flash as flash0, nuff said.
ehhh?
The FLASH doesn't have squat to do with UMD cache, it's the extra RAM.
Crazykid3: Why are you trying to bootstrap the firmware with Grub? It makes no sense to port grub for PSP. Just hack the SCE firmware and make it minimal, much better and easier way.
Guess how the older CFW's with 1.50 bootstrap worked. Yep, that's right, dualboot. They first boot into 1.50 and from there, apply some LoadCore patches and then reboot into the secondary kernel (aka 2.71 or 3.02, etc. etc. depending on the firmware revision of course). No grub there.
And if you're trying to ehh, bootstrap the SCE firmware from Grub, you don't seem to have such a good understanding of the PSP.
The idea is totally possible, but the way you tried is far from the right one.
Ahem....no.
Older cfw's worked by writing a 1.50 subset, then the (ie. 3.03 oe-c) the 3.03 firmware, minus the prx's from used in the 1.50 subset. You are thinking of Devhook, which booted off the memory stick. The person boots into 1.50, runs the DevHook program, and boots to their firmware. Not a true multi-boot.
If you truly beleive the extra internal memory is for flash0, then, again, I say: Why did M33 have such trouble with the file sizing, so much so that they had to delay the release?
Does anorexia induce constipation?
~~~~~~~~~~~~~~
Ive become so paranoid, that Im paranoid about my paranoia....
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Senior Member
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31. December 2007 @ 15:13 |
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Here we go again....This is how the thread blew up a while back when project EE was forming...You guys must have forgot who MaTiAz44 is? I am going to go grab some popcorn while MaTiAz44 drops some knowledge on this subject.
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zooom1834
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31. December 2007 @ 15:40 |
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i remember back in the 2.71 era when there as no custom firmware some onenamed harley g made a dual boot
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31. December 2007 @ 16:31 |
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And if this thread does blow up it will be history with possibly the members involved in trashing each other.
Play nice and let's not get into a detailed technical discussion (hint: rules)
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