Linux and Graf question

[sportsstar89]

I am new to linux espicially on the ps3 and i wish to disable hdd encryption using graf tools can anybody guide me through getting and installing the hdd disable encryption tool? thanks in advance

[nzps2guy]

http://psx-scene.com/forums/f119/gui...ompiled-84469/ (Guide to install any linux distro you please....and also grafs latest kernel updates(precompiled))

[sportsstar89]

Yes i saw that but im not talking about the kernal im talking his tool thats allows you to disable harddrive encryption unless it is built in to the kernal which im 99.9% sure it isn't. so i want to know how to download the tool compile it and run it since i dont really use linux and i couldnt figure out how to do it. Thanks

[nzps2guy]

See my previous post!!! Last page!!!

[sportsstar89]

I went through every page of that topic there is no mention of using the tool to turn off hdd encryption. just to resize the vflash and dual boot linux and gameos for the record this is what im talking about http://psgroove.com/content.php?909-...y-Graf_Chokolo not this http://www.ps3hax.net/2011/03/graf_c...ools-released/

[Sylphide]

sportsstar89 is right I don't see any information about disabling hdd encryption.

I am new to linux too, I don't know if I can help you. First I had to load ps3dmproxy module (modprobe ps3dmproxy)

In order to compile graf tools I had to copy "missing" .h from /usr/src/"linux headers"/arch/powerpc etc (you can use locate command). For example in ps3dm_proxy.c, I replaced <asm/ps3dmprxy.c> with "libasm/ps3dmproxy.c" and copied missing h files in libasm folder.

Then you can delete ATA (ENCDEC) key with command : ./ps3dm_sm /dev/ps3dmproxy set_del_encdec_key 0x110
You can use 0x110 to 0x11F or 0xC to 0xF, I haven't understood the difference and effect yet (if somebody would be kind enough... )

[MikeM64]

That's because disabling HDD encryption is a work in progress. Graf's tools only temporarily disable the encryption as GameOS will restart the encryption on the next boot.

Currently, if you did decrypt your HD, you won't be able to start your PS3 again, as it expects an encrypted HD, and will not find the data it wants.

Read up on the dev wiki if you want to know more.

[Sylphide]

Hi MikeM64

I read encdec parts carefully but I don't understand the difference between "ATA key" and "Encdec key". Which ones should be deleted in this case ? I suppose ATA key 0x11* (* = 1 to F, all 16 keys ?)

In wiki I read "after deleting ATA key (index 1) the sectors on VFLASH or HDD were NOT decrypted by HV". Is there a way after deleting all these keys to see raw data from linux (before ps3 restart) ?

The dev wiki is very good and complete but sometimes it just lists some values without explanation. For exemple cryptographic key : I would be interested to know the definitions of "appldr", "isoldr", etc.

[xPreatorianx]

In all honesty you really don't need to turn off HDD encryption because the linux tools already give you enough access to the PS3 files. The higher level access on one or two of the partitions will end up with you bricking the PS3 if you mess with those files. So stick with the linux tools in this thread to access everything you need to access : http://psx-scene.com/forums/f119/how...3/index18.html (How to resize vflash and install petitboot)

You don't want to actually decrypt the HDD because like someone else said it will cause further problems. Those tools are still highly experimental until the folks at gitbrew expand upon them.

[MikeM64]

As xPreatorianx said, you don't need to worry about decrypting stuff, as you can already read/write the entire hd in linux/GameOS.
That said, you will not brick your ps3 if you decide to mess around otherwise, but you'll need to reinstall your os (only if you are messing with the HD / VFLASH (NOR PS3); YOU WILL BRICK IF YOU MESS WITH A NAND PS3's FLASH).

You can already see the raw decrypted data in linux, and if you want the encrypted data, look at the hd through another computer or use 0x110 to disable encryption/0x100 to enable.

You'll want to look at the dev wiki and read what graf says about which keys effect which devices; he spells it out pretty well.

Finally, If you're willing to wait a bit, I'm working on a way to boot the ps3 with a decrypted HD, and a method (using linux) to decrypt the HD.