mount file system using offset.

mount file system using offset.

[F. Heitkamp]

Hi,

First of all please accept my apologies for posting to this list on this 
particular topic, but it was the closest match I could find.

I pulled the harddisk out of my ps3, because I have forgotten the root 
password on the linux partition.

After spending some time googling I see that the harddisk is encrypted 
and there are no linux utilities that can read/write it.

However I did find that the "testdisk" program finds the linux 
partitions on the disk (see below.).

It seems I should be able to mount the partitions on my linux pc box 
somehow since I now know their location on the disk.

Does anyone know how one might go about that?

Thanks!

Fred

TestDisk 6.12, Data Recovery Utility, May 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdc - 80 GB / 74 GiB - CHS 9729 255 63

The harddisk (80 GB / 74 GiB) seems too small! (< 13 TB / 11 TiB)
Check the harddisk size: HD jumpers settings, BIOS detection...

The following partition can't be recovered:
      Partition               Start        End    Size in sectors
 >  Linux SWAP 2          9675 127 42 1593896 192  5 25450514424


TestDisk 6.12, Data Recovery Utility, May 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdc - 80 GB / 74 GiB - CHS 9729 255 63
      Partition               Start        End    Size in sectors
 >P ext3                  1566 128 42  1579 127 35     208776 [/boot]
  P ext3                  1579 127 42  9675 127 41  130062240 [/]

Re: mount file system using offset.

[Geert Uytterhoeven]

On Sun, Sep 18, 2011 at 21:21, F. Heitkamp <heitkamp@ameritech.net> wrote:
> First of all please accept my apologies for posting to this list on this
> particular topic, but it was the closest match I could find.
>
> I pulled the harddisk out of my ps3, because I have forgotten the root
> password on the linux partition.
>
> After spending some time googling I see that the harddisk is encrypted an=
d
> there are no linux utilities that can read/write it.
>
> However I did find that the "testdisk" program finds the linux partitions=
 on
> the disk (see below.).
>
> It seems I should be able to mount the partitions on my linux pc box some=
how
> since I now know their location on the disk.
>
> Does anyone know how one might go about that?

Now you know the offset of the Linux "partition" on the disk (i.e. the
part of the
disk that was visible to Linux), you can use dm-linear to map this part ont=
o a
new block device.
After that you can use kpartx to create block devices representing the
individual
partitions on the above new block device.

> TestDisk 6.12, Data Recovery Utility, May 2011
> Christophe GRENIER <grenier@cgsecurity.org>
> http://www.cgsecurity.org
>
> Disk /dev/sdc - 80 GB / 74 GiB - CHS 9729 255 63
>
> The harddisk (80 GB / 74 GiB) seems too small! (< 13 TB / 11 TiB)
> Check the harddisk size: HD jumpers settings, BIOS detection...
>
> The following partition can't be recovered:
> =C2=A0 =C2=A0 Partition =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
Start =C2=A0 =C2=A0 =C2=A0 =C2=A0End =C2=A0 =C2=A0Size in sectors
>> =C2=A0Linux SWAP 2 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A09675 127 42 1593896=
 192 =C2=A05 25450514424
>
>
> TestDisk 6.12, Data Recovery Utility, May 2011
> Christophe GRENIER <grenier@cgsecurity.org>
> http://www.cgsecurity.org
>
> Disk /dev/sdc - 80 GB / 74 GiB - CHS 9729 255 63
> =C2=A0 =C2=A0 Partition =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
Start =C2=A0 =C2=A0 =C2=A0 =C2=A0End =C2=A0 =C2=A0Size in sectors
>>P ext3 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01566=
 128 42 =C2=A01579 127 35 =C2=A0 =C2=A0 208776 [/boot]
> =C2=A0P ext3 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A01579 127 42 =C2=A09675 127 41 =C2=A0130062240 [/]

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k=
.org

In personal conversations with technical people, I call myself a hacker. Bu=
t
when I'm talking to journalists I just say "programmer" or something like t=
hat.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds

Re: mount file system using offset.

[Christoph Hellwig]

On Sun, Sep 18, 2011 at 03:21:45PM -0400, F. Heitkamp wrote:
> Hi,
>
> First of all please accept my apologies for posting to this list on this 
> particular topic, but it was the closest match I could find.
>
> I pulled the harddisk out of my ps3, because I have forgotten the root 
> password on the linux partition.

Why doesn't init=/bin/sh work on the ps3?