Hello Andre,
On 23.02.22 16:36, Andre wrote:
> I used a live Debian 11 ("grml" in persistent-mode) and latest
>
https://git.codelabs.ch/?p=muen/mugenhwcfg.git to create a .XML
> Configuration.
>
> I got multiple Errors like:
> ** ERROR **: Could not access file: /dev/mem - 0xfed90008
the address looks like MMIO which may be restricted by the GRML kernel.
You can try with the following in your kernel command line (needs to
be added manually during boot):
iomem=relaxed
>
> These Errors are in section "Formatting XML document..." which tells me,
> that this could be a Script problem.
> The File "/dev/mem" is existing and readable by root:kmem (0640 [also
> tried 0666]).
>
> Is my Hardware incompatible or is this a Script issue ?
That's definitely a software issue. What general-purpose operating
systems gain in security, they lose in convenience for development
purposes like this. /dev/mem is supposed to give a user-space program
like mugenhwcfg direct access to the physical memory space. That can
be a security issue and also cause trouble with kernel drivers, hence
it's restricted by default nowadays.
Nico