[PS4][TIP] Creating PS2 emulator patch pkg files

Discussion in 'PS2 on PS4' started by littlebalup, Mar 13, 2018.

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    littlebalup

    littlebalup Developer PSX-Place Supporter

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    Creating PS2 emulator patch pkg. Procedure is simple.

    First of all, you need to have the .pkg file of your full game you want to patch (the *-A0100-V0100.pkg).
    Then:

    • Create a new empty folder and name it like "ps2emu_patch".
    • Copy/paste the "sce_sys" folder and "config-emu-ps4.txt" file from your PS2 game folder to your "ps2emu_patch" folder. You can also copy or add the "patch" folder and associated cli.conf files, etc.
    • Edit your copied config-emu-ps4.txt (and/or cli.conf if any) as you want.
    • Edit your copied param.sfo and set the Cathegory to Game Application Patch and the Application Version (APP_VERR) to 1.01 (or upper). Do not change content ID. Save.
    • Open fake PKG generator, File -> new project -> Patch package
    • Double click to the "image" then drag and drop all the files and folders from your "ps2emu_patch" folder.
    • (optional) select all the files and folders of your image -> right click -> enable file compression. Ok.
    • Chunk tab -> right click to the image -> add chunk assignment -> chunk 0
    • Close image setting window.
    • Select Command -> project setting -> package tab.
    • Enter the Content ID (must be the same as your game and SFO) and your Passcode.
    • Select the Patch tab.
    • At "Application package", select your full game package file (the *-A0100-V0100.pkg). then OK.
    • Save your gp4 project file : File -> save as ...
    • Build
     
    Last edited: Mar 19, 2018
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    kozarovv

    kozarovv Developer

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    Very nice info here, thanks! So with this we can now finally test many configs without rebuilding full game pkg! Awesome!
     
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    stranno

    stranno Member

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    Isnt there any way to just replace files through payload FTP?
     
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    kozarovv

    kozarovv Developer

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    No.
     
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    JoeAngel

    JoeAngel Member

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    Im slightly confused?? Is this to patch pkg files we were using for ps4 to be used on the newest ps3 exploit or?? Basically another tutorial on making ps2 games for ps4?
     
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    kozarovv

    kozarovv Developer

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    Title starting with [PS4] in PS2 on PS4 section. How you connected this thread with PS3xploit? :)

    Anyway this is thread about making patches/update pkg files for ps2 emulator. This way we can add someting without rebuilding full pkg.
     
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    JoeAngel

    JoeAngel Member

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    Ahh I didnt see subforum title, I got this from a tweet, and hmm, what is there to add to ps2 titles? they dont have updates or anything? Am I missing a post or something perhaps? Ive created lots of ps2 packages for ps4. Tested and all.
     
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    kozarovv

    kozarovv Developer

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    You can add custom configuration to fix game for example. You can add second disc, which can be useful for emulators, or you can change pictures, etc. For me most important is that few persons here can test custom configs without rebuilding and installing full game again. So 10MB instead of 4GB for change config.
     
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    Stayhye

    Stayhye Member

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    This gives me an error....

    You forgot to mention to change category in param.sfo editor to "PS4 Game Application Patch"
     
    Last edited: Mar 17, 2018
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    littlebalup

    littlebalup Developer PSX-Place Supporter

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    Oups... added. thanks.
     
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    Stayhye

    Stayhye Member

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    No problem. Thanks for the tip, makes testing configs and fixes a lot faster now. Though my success rate at fixing anything on my own is still at 0 LOL :mad:
     
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    Grim Doe

    Grim Doe Game Mod Developer Developer

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    Thanks a lot for this bro
    This will speed things up all in all :)
     
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    ransom

    ransom Member

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    I dont understand what is it fixing? Ps2 ganes that dont worl on ps4?
     
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    kozarovv

    kozarovv Developer

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    Is not fixing anything. This allow you to create patch 1.01 to game that you previously made. In patch you can add for example new config, new iso, new icons, etc. Is "just" way to add something to package that you already have.
     
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    Chreech

    Chreech Member

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    I don't understand the steps. I have created PS2 pkg file from iso and There is nothing like "PS2 game folder". So how am i supposed to copy "sce_sys" folder and cli.conf files?
     

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