Dump 512mb Jasper Nand In 10 Minutes, Very Noob Friendly Descriptions Options

[infidelity]

This thread is specificly for dumping the 512mb Jasper NAND in 10 minutes, instead of 16 hours by lpt. This is how I was able to accomplish this.

Before you attempt this, you need to have Xell already installed into your NAND, a copy of gentoo livecd beta 2, burned to either a CD-R or DVD-R (i had to burn it to a DVD+R, it was the only way for my 360 to read it, and it doesn't matter if your DVDROM is flashed or not, with hacked firmware) a usb mouse, a usb keyboard, and a usb memory stick larger than 512MB formatted to FAT32. (i used a cruzier Sandisk 4gb)

The link below does have a great description on how to perform this, but the way it was written, didn't work out for me, and I had to do some things differently to accomplish this. I'd like to thank "duggyuk" from xboxhacker.net, for taking the time to go over this with me.

First you need to create the lflash.c file

How To Create lflash.c
http://forums.xbox-scene.com/index.php?sho...p;#entry4588976

Once you have created the file lflash.c, copy it onto your usb memory stick, and place the usb memory stick in the rear usb port on the 360 (i had to use an extension since the body of my memory stick was too fat to reach the port)

If your 360 is standing up, plug in your usb mouse in the left usb port, and plug in your usb keyboard into the right usb port

Eject your 360 tray, (which will turn on your 360) place the gentoo cd/dvd into your 360, now shut the 360 off.

Now, turn on the 360. After about a minute, linux should be booting up. If it seems that a certain part of linux is frozen for 5 minutes or more, power off the 360, and start again, (this is normal, usualy happens only once)

When linux has finished loading, you'll be heading into gentoo. Gentoo will first present to you a pixel looking gray screen with a mouse cursor. After a few minutes, the screen will change, and a username window will pop up. DO NOT WRITE ANYTHING IN IT! LET IT DISAPPEAR.

Continue to let gentoo do it's thing, and after another few minutes, you should be presented to a Desktop similar to Windows.

Now, for all of you that are using an HDTV and xbox 360 componet cables, you will not be able to see the top toolbar. I found this out by moving the mouse around, letting it sit, and seeing an info box pop up for some odd reason.

So, when on the gentoo desktop, move the mouse cursor to the upper left part of your screen. Wait until you see the infobox "Browse and run installed applications" when you see this, left click the mouse. (if nothing happens, move the cursor higher into the upper left corner)

A dropdown menu should appear. Goto "Accessories" then goto "Terminal"

Here is where I spent most of the time scratching my head. But hopefully you won't have to. What I'm about to paste, is what you have to type into the "Terminal". What you see pasted below is EXACTLY how your supposed to write it. Uppercase, Lowercase, Symbols, you name it, it all has to match. Pay no attention to whatever "Terminal" says when pressing Enter after certain commands, just don't worry about them. Just make sure you type everything written below correctly, and in order. just to give a heads up, when it comes time to type in the password, you won't be able to see it.

sudo passwd
su
su
cd Desktop
mkdir flash
dmesg | grep -i "SCSI device"
sudo su -
sudo passwd
su
su
mount -t vfat -o uid=gentoo,gid=users /dev/sda1 /home/gentoo/Desktop/flash
cd /home/gentoo/Desktop/flash
gcc lflash.c
chmod +x a.out
./a.out backupnand.bin

Once you press Enter after inserting the last command, gentoo should begin dumping your NAND onto your USB memory stick.

Now, I must warn you, most likely this process will freeze on you. I found out that again, this freezing is normal. It happend to me 3 times. Each time I restarted the entire process, gentoo got further into the NAND. By my 3rd time, I had a complete backup of my 512MB nand in less than 10 mins!

My 512MB Nand file size was "540,672MB"

However, when it came time for the Verifying part of the process, it froze again.

I take no responsibilty/credit for anything here. All I'm doing is letting everyone here know, that has a 512mb Jasper, my methods on how to accomplish this with little to no headaches.

Also, if it does freeze on you during the dumping process, this is what I did. I reformated my USB stick, copied the lflash.c file back onto my usb memory stick, and started all over, until I got my backup of my NAND.

This post has been edited by infidelity: Dec 15 2009, 07:36 PM

[Gsus89]

Thank you very much, sir. I'll try this with my 256 nand Jasper right now and post the result.

[Vel]

Thanks for this, I'm wondering if this will be possible on a nand with a 16MB nand, as I don't have a parallel port on my PC, and I don't fancy doing it on my brothers PC for over 2 hours to get 3 dumps,

Thanks,

Vel

[vintage_guitar]

Thanks for this, I'm wondering if this will be possible on a nand with a 16MB nand, as I don't have a parallel port on my PC, and I don't fancy doing it on my brothers PC for over 2 hours to get 3 dumps,

Thanks,

Vel

With a 16mb NAND use the standard version of lflash.c instead of tuxuser's modified version.
http://free60.git.sourceforge.net/git/gitw...flash.c;hb=HEAD

This post has been edited by vintage_guitar: Dec 15 2009, 10:18 PM

[Vel]

With a 16mb NAND use the standard version of lflash.c instead of tuxuser's modified version.
http://free60.git.sourceforge.net/git/gitw...flash.c;hb=HEAD

Thanks VG I'll be sure to try it (my exploitable 360 comes tomorrow whoo)

[Gsus89]

Thank you one more time. I just used this method to dump my 256mb Jasper NAND trough Gentoo It all went ok at the second try, including the verifying process. All done.

Now i guess it's time to wait

This post has been edited by Gsus89: Dec 17 2009, 12:59 AM

[infidelity]

glad it worked

[potajito]

Thanks for this, will try tomorrow, just two questions, is normal to have 4 red lights in gentoo? It works normally, just got 4 red lights.
And why so many sudo and su?

[vintage_guitar]

Thanks for this, will try tomorrow, just two questions, is normal to have 4 red lights in gentoo? It works normally, just got 4 red lights.
And why so many sudo and su?

mine are orange.
But, you may use

CODE

sudo su -

to skip making/changing passwords

This post has been edited by vintage_guitar: Dec 19 2009, 09:58 PM

[Morning Call]

maybe im blind but you didn't mention that it CANT write and writing will erase your nand all together leaving you possibly fucked if your read was no good.

not that this thread was for writing... but im sure someone here was going to try it.

[potajito]

After 4 attemps i got my first full dump (512), but it crashed when verifying. I've tried about 4 times more and haven't got a full dump again. Anything I can do to improve this? Can we expect more lflash.c revisions?
Also everytime i dump it gives me two errors (also every time it says "corrected" on those errors).
My dump is 519mb btw.

[starnet]

Can i use for the dump, a 2gb usb mamory?

[potajito]

After 4 attemps i got my first full dump (512), but it crashed when verifying. I've tried about 4 times more and haven't got a full dump again. Anything I can do to improve this? Can we expect more lflash.c revisions?
Also everytime i dump it gives me two errors (also every time it says "corrected" on those errors).
My dump is 519mb btw.

I've found out that using USB1.0 pendrives works MUCH better, 4/4 succefulls dumps (it never verifies, always crashes there). When using newer pendrives, goes much faster, but every once in a while it stalls, and sometimes continues and sometimes just crashes. This doesnt happen with old pendrives, it stalls, but ALWAYS continues.
Hope this helps other people and thanks to the author of lfash.c, it saves a lot of time, now we just need it to write and be a bit more reliable

[kipper2k]

k,

this post has got me puzzled. In order for this to work you must have Xell already installed on the Nand,
How can you get a read of your original nands first 5o blocks if the first 50 blocks have been overwrote ?

Wouldnt you/shouldnt you get a read of the first 5o blocks first b4 attempting this otherwise you lose the data on those first 50 blocks. ? I dont see any reference to obtaining the first 50 blocks first

This post has been edited by kipper2k: Dec 21 2009, 01:29 AM

[vintage_guitar]

k,

this post has got me puzzled. In order for this to work you must have Xell already installed on the Nand,
How can you get a read of your original nands first 5o blocks if the first 50 blocks have been overwrote ?

Wouldnt you/shouldnt you get a read of the first 5o blocks first b4 attempting this otherwise you lose the data on those first 50 blocks. ? I dont see any reference to obtaining the first 50 blocks first

http://forums.xbox-scene.com/index.php?sho...p;#entry4588976
step #1

This post has been edited by vintage_guitar: Dec 21 2009, 02:41 AM