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Full Discussion: Secondary linux dist WITHIN primary one
Operating Systems Linux Secondary linux dist WITHIN primary one Post 302417385 by Corona688 on Thursday 29th of April 2010 11:34:53 AM
Old 04-29-2010
Sounds to me like he was just chroot-ing. It runs a new shell that thinks /path/to/fedora/files is / . This means it'll load programs and libraries from inside there and nowhere else. It's a good way to test programs but doesn't actually boot it... UML would be closer but it's a kernel, not a flat-out virtual machine like vmware -- it doesn't emulate a computer screen for you or anything.
 

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LEARN ABOUT DEBIAN

pdebuild-user-mode-linux

pdebuild-user-mode-linux(1)					     pbuilder					       pdebuild-user-mode-linux(1)

NAME

       pdebuild-user-mode-linux - pbuilder-user-mode-linux way of doing debuild

SYNOPSIS

       pdebuild-user-mode-linux [pdebuild-user-mode-linux options] -- [pbuilder-user-mode-linux options]

DESCRIPTION

       A  convenience  program	for  pbuilder-user-mode-linux which invokes pbuilder after obtaining appropriate root privilege in a Debian source
       directory.  One must be inside the source tree containing the debian directory, in order to make it work.

PDEBUILD OPTIONS

       --buildsourceroot [fakeroot]
	      The command used to gain root privilege for invoking dpkg-buildpackage

       --auto-debsign

	      Invoke debsign at the end of pdebuild process.

       --debsign-k [key-id]

	      Pass -k option to debsign to specify which keyid to sign.

       --buildresult [Directory for build results]

	      The place which build result is stored.

       --configfile [Extra config file to use]

	      The configuration file is used, but not passed on to pbuilder-user-mode-linux.

       --debbuildopts [options to pass to dpkg-buildpackage]

	      The space-delimited list of options are passed to dpkg-buildpackage.  This option appends to pbuilder option --debbuildopts and  may
	      also be used to reset the list of options by passing the empty string.

       --use-pdebuild-internal
	      Uses a different implementation of pdebuild, which calls clean and build inside the chroot, using bind-mounts.

	      pdebuild-internal tries to run debian/rules clean inside the chroot.  To achieve the goal, the working directory is passed on inside
	      the chroot, in the form of bind-mounting and debuild is run.

	      This option will not protect the working directory and its parent directories from the build scripts.

       -- [pbuilder options]

	      After the -- symbol, an arbitrary number of pbuilder options can be specified.  See  pbuilder-user-mode-linux.1  for  full  list	of
	      options.

	      There is an exception that --buildresult needs to be specified as pdebuild option before the -- to be effective.

FILES

       /etc/pbuilderrc
	      The configuration file for pbuilder-user-mode-linux, used in pdebuild-user-mode-linux.

       /usr/share/pbuilder/pbuilderrc
	      The default configuration file for pbuilder-user-mode-linux, used in pdebuild-user-mode-linux.

       ${HOME}/.pbuilderrc
	      Configuration file for pbuilder-user-mode-linux, used in pdebuild-user-mode-linux, overrides what is written in /etc/pbuilderrc

AUTHOR

       Initial coding, and main maintenance is done by Junichi Uekawa <dancer@debian.org>.

       The homepage is available at http://pbuilder.alioth.debian.org

SEE ALSO

       /usr/share/doc/pbuilder/pbuilder-doc.html, pbuilder-user-mode-linux(1), pbuilderrc(5), pbuilder-uml.conf(5)

Debian								    2006 May 24 				       pdebuild-user-mode-linux(1)
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