Not all that simple, because su-to-root lacks support for passing command line arguments to applications.

In T22#834, @Patrick wrote:

Not all that simple, because su-to-root lacks support for passing command line arguments to applications.

I was wrong. We could use something like following example. With quotes. The syntax is not a pretty due to quotes. (Working on a patch: T85)

su-to-root -X -c 'whonix-setup-wizard setup'
su-to-root -X -c "kate /etc/apt/sources.list"

Unfortunately, su-to-root does not prefer kdesudo (that honors /etc/sudoers.d) over gksu (that does not). TODO: consider shipping a config file that prefers kdesudo or writing a patch upstream that gives higher priority to kdesudo for the su tool autodetection code.

TODO: consider shipping a config file that prefers kdesudo or writing a patch upstream that gives higher priority to kdesudo for the su tool autodetection code.

Done:

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793376
• https://github.com/adrelanos/menu/pull/1

Let's consider adding the following /etc/su-to-rootrc [using config-package-dev] to the usability-misc package for Whonix 12:

## This file is part of Whonix.
## Copyright (C) 2012 - 2014 Patrick Schleizer <adrelanos@riseup.net>
## See the file COPYING for copying conditions.

## For better usability.
## Using this until/if Debian upstream feature request
## su-to-root: higher priority for kdesudo and gksudo
## https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793376
## gets implemented.
## Otherwise su-to-root would default to gksu, which always
## asks for a password and ignores /etc/sudoers(.d).
## Feel free to delete this file or to change its settings.

SU_TO_ROOT_X=kdesudo

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793376