Mounting and modifying a loopback file without sudo/root, is it possible?

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http://unix.stackexchange.com – I'm trying to adapt a tutorial into an easy to use script (http://qt-project.org/wiki/RaspberryPi_Beginners_guide). I'm trying to reduce the need for sudo/root as much as possible (preferably, only for the final dd step). My questions are: 1) Can I mount the ext4 file system without sudo/root privs in any way? 2) Can I mount it in a way so that users/groups on the FS are ignored in some way (so I can run make install without sudo)? The Filesystem is currently mounted loopback from an offset of a file (i.e. -o loop,offset=62914560). This file is the image that will be copied onto SD card (HowTos)