[g1-hackers] dd image of G1 block/disk devices

[Disconnect]

That won't give him a raw copy.

I'm not sure, off the top of my head, what would if dd (or cat) doesn't
work. Presumably anything that works on nand flash will work.. (and making
sure its unmounted and such of course.)

On Thu, Feb 26, 2009 at 9:35 AM, Kash Pande <kash at tripleback.net> wrote:

> Andrew Hoog wrote:
> >
> > Good morning,
> >
> > I am trying to grab a full dd image of various block devices on the G1
> > for forensic analysis research. For those familiar with the iPhone,
> > this is possible using a custom firmware (“Zdziarski’s technique”).
> >
> > After gaining root access and applying JF 1.42 RC33 (and also
> > installing busybox v1.13.2), I have tried both the built-in dd and
> > /data/busybox/dd (/system/xbin/bb/dd?) to image /cache
> > (/dev/block/mtdblock4) and /data (/dev/block/mtdblock5). Both error
> > out with:
> >
> > # dd if=/dev/block/mtdblock4 of=/sdcard/mtdblock4.dd
> >
> > dd: /dev/block/mtdblock4: Input/output error
> >
> You need to use `mkyaffs2image` iirc, because of the way MTD devices work.
>
> Kash
>
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