Implement the ability to mount Anyboot images

[mmadia]

With the addition of ​Anyboot Images to the build system & soon to the www.haiku-files.org, it would be useful for Haiku to be capable of mounting the anyboot images seamlessly.

Some information from mmlr: They include a valid partitioning system. So, they could be registered as file devices and then the individual partitions could be normally mounted.

[taos]

Mounting of anyboot images would be great - especially if haiku no longer distributes raw (alpha) images (can't find any on ​http://www.haiku-os.org/get-haiku at least).

A raw image file can be mounted and then chosen as source disk in Installer - a very easy and fast way to install Haiku if you have two partitions for testing purposes. With a raw image file it is also easy to disable (delete) a driver that would prevent your system from booting properly before haiku is installed - I remember a nasty wlan driver that would crash my system even in safe mode if not deleted.

As long as anyboot images can't be mounted in haiku raw images shouldn't be abandoned completely.

[diver]

Apparently it was implemented quite some time ago, but wasn't added to HaikuImage:
​http://cgit.haiku-os.org/haiku/tree/src/bin/diskimage.cpp

[mmadia]

hrev44575 is the addition of diskimage to the image, allows anyboot files (and other files) to be registered as a disk device.

Thanks luroh for testing and Ingo for writing it!

[taos]

Using hrevr1alpha4-44579 and hrev44599.

I'm able to register an anyboot image as device via "diskimage register" in terminal. Unfortunately, it seems I can't get to mount it in any way I can think of (last part of syslog is attached). Apart from that, i would prefer to be able to mount an anyboot image in the same way as e.g. a raw or iso image file - just by double-clicking it.

[taos]

last part of syslog in hrev44599

[taos]

Using hrev44618.

I'm now able to mount the registered anyboot image via drivesetup.