Dev1 Galaxy Forum / how to specify an hexadecimal offset to dd ?

Re: how to specify an hexadecimal offset to dd ?

dummy@example.com (unixuser) — Fri, 04 Jul 2025 13:01:53 +0000

@rolfie, I think you should have at least read it once before saying this, then, you'd know that it doesn't mention hexadecimal notation.
To have all options : check out the source code.

@ralph.ronnquiest, thanks, very appreciated, I still working on it. dd is powerful but a bit esoteric to use.

Re: how to specify an hexadecimal offset to dd ?

dummy@example.com (ralph.ronnquist) — Mon, 09 Jun 2025 23:32:36 +0000

Use the shell phrase $((0x100)) to specify offset value 256; and similarly $((0x35feed63)) for offset value 905899363.

The parameters would be skip=?? for the infile and seek=?? for the outfile. The value is in block size counts.

Re: how to specify an hexadecimal offset to dd ?

dummy@example.com (rolfie) — Mon, 09 Jun 2025 20:00:20 +0000

man dd

how to specify an hexadecimal offset to dd ?

dummy@example.com (unixuser) — Mon, 09 Jun 2025 19:31:14 +0000

Hi there,

does someone know how to specify an offset to dd ? I am trying to extract some bits from a firmware (some .data)

Thanks and hf!