[Buildroot] manipulating raw disk images as non-root user

Yann E. MORIN yann.morin.1998 at free.fr
Mon Aug 4 21:04:03 UTC 2014

Dallas, All,

On 2014-08-02 11:45 -0500, Dallas Clement spake thusly:
> I am trying to figure out a way to produce a uSD card image file during my
> build process and do it as a non-root user.  I am hoping to do this from a
> post image script.
> I can create the image file with dd and partition it with parted as a
> non-root user.  However, I have not figured out how to format, and populate
> the image file.  Tools such as kpartx and losetup seem ideal for this
> purpose except that they must be run as root.
> Does anyone know of a way to do this using qemu or fuse or related tools?

Well, as already pointed out, we do have a few host tools just for that
kind of usage, in the "Host utilities" sub-menu.

Also, if you want to have a look, I make use of those tools in my
Buildroot.config project:

You may want to have a look at:
and the subfolders for how to use those tools.

Note that all the scripts there in are part of a bigger infra. Feel free
to poke around the project tree.

(Warning: no doc, bleeding edge, unstable, no support... ;-) )

Yann E. MORIN.

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