[dolphin] [Bug 425319] Mounting an ISO with multiple partitions always mounts the wrong partition

[Kwon-Young Choi]

https://bugs.kde.org/show_bug.cgi?id=425319

--- Comment #3 from Kwon-Young Choi <kwon-young.choi at hotmail.fr> ---
(In reply to Oded Arbel from comment #2)
> 
> > * Can you mount your iso file using only `udisksctl` commands?
> 
> Yes, but only the second partition: after `loop-setup`, I have /dev/loop24,
> /dev/loop24p1 and /dev/loop24p2. with `sudo mount` I can mount either
> /dev/loop24 (Joliet/ISO9660 file system) or /dev/loop24p2 (HFS filesystem).
> I'm not sure what /dev/loop24p1 is - maybe the isolyzer or solid-hardware
> output from above has some clues. When using `udisksctl mount`, only
> /dev/loop24p2 successfully mounts. So I have a feeling this is indeed not a
> Dolphin problem but a udisks2 problem.

Could you share the output of the following commands:

```
$ udisksctl info --block-device /dev/loop24

$ udisksctl info --block-device /dev/loop24p1

$ udisksctl info --block-device /dev/loop24p2
```

`udisksctl` has often more detailed informations than `solid-hardware`.
>From what I understand of `udisksctl`, /dev/loop24 represent the partition
table of the image and each additional loop device loop24p1, loop24p2 represent
an different partition.

I found this issue at the udisks project page:
https://github.com/storaged-project/udisks/issues/725 but I am not sure if it
is the exact same problem.

For now, I think it is fair to say that this is a problem coming from udisks
and maybe you could add a comment on that udisks issue thread.

> > * Could you provide an iso file with which I could reproduce your results?
> > You can mail it to me directly at my email address if you want
> > (kwon-young.choi at hotmail.fr)
> 
> It is commercial software, so I'm not sure that is a good idea, and it is
> also very large. I'll email you privately and we can discuss there.

Since I'm a new contributor and you do not know me, I 100% understand that.
Moreover, I might not be the best person to help you since I don't know a lot
about this stuff.

I guess the other solution would be to switch to from udisks to another tool
like fuseiso, but that would be a enormous amount of work.

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