Change one file in an ISO image

Tim Judd tajudd at
Thu Sep 17 21:09:29 UTC 2009

On 9/16/09, Gelsema, P (Patrick) - FreeBSD <freebsd at> wrote:
> Hi list,
> I need to change one file in an existing ISO image. It is a DVD image btw.
> Unfortunately I dont have many options of changing the fie before creating
> the image.
> Mounting is not the issue, copying data neither but the ISO is also
> bootable. There must be a simpler solution as in copying all the content
> with cpio and making it bootable. OS on the DVD is WinPE btw.
> Does anyone have some pointers for performing this action?
> Rgds,
> Patrick

the cd9660/iso9660 filesystem type doesn't support rw options.  Even
if you mdconfig and mount -o rw, it is mounted ro

"editing" a ISO is not possible.  will require a remastering process.

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