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DEBOOTSTRAP(8)		     Debian GNU/Linux manual		  DEBOOTSTRAP(8)

NAME
     debootstrap - Bootstrap a basic Debian system

SYNOPSIS
     debootstrap [OPTION...]  SUITE TARGET [MIRROR [SCRIPT]]

     debootstrap [OPTION...]  --second-stage

DESCRIPTION
     debootstrap bootstraps a basic Debian system of SUITE into TARGET from MIR-
     ROR  by  running  SCRIPT.	 MIRROR  can  be  an  http:// or https:// URL, a
     file:/// URL, or an ssh:/// URL.

     The SUITE may be a release code name (eg, sid, stretch, jessie) or  a  sym-
     bolic name (eg, unstable, testing, stable, oldstable)

     Notice  that  file:/ URLs are translated to file:/// (correct scheme as de-
     scribed in RFC1738  for  local  filenames),  and  file://	will  not  work.
     ssh://USER@HOST/PATH URLs are retrieved using scp; use of ssh-agent or sim-
     ilar is strongly recommended.

     Debootstrap  can be used to install Debian in a system without using an in-
     stallation disk but can also be used to run a different Debian flavor in  a
     chroot  environment.   This  way you can create a full (minimal) Debian in-
     stallation which can be used for testing purposes (see  the  EXAMPLES  sec-
     tion).   If  you  are  looking for a chroot system to build packages please
     take a look at pbuilder.

OPTIONS
     --arch=ARCH
	    Set the target architecture (use if dpkg isn't installed).	See also
	    --foreign.

     --include=alpha,beta
	    Comma separated list of packages which will be added to download and
	    extract lists.

     --exclude=alpha,beta
	    Comma separated list of packages which will be removed from download
	    and extract lists.	WARNING: you can and probably will  exclude  es-
	    sential packages, be careful using this option.

     --extra-suites=alpha,beta
	    Also use packages from the listed suites of the archive.

     --components=alpha,beta
	    Use packages from the listed components of the archive.

     --no-resolve-deps
	    By	default,  debootstrap  will attempt to automatically resolve any
	    missing dependencies, warning if any are found.  Note that	this  is
	    not  a  complete dependency resolve in the sense of dpkg or apt, and
	    that it is far better to specify the entire base system than rely on
	    this option.  With this option set, this behaviour is disabled.

     --log-extra-deps
	    If you want to record additional dependencies when resolving package
	    dependencies, set this option to track them through debootstrap.log.

     --variant=minbase|buildd|fakechroot
	    Name of the bootstrap script variant to use.  Currently,  the  vari-
	    ants  supported  are  minbase, which only includes required packages
	    and apt; buildd, which installs  the  build-essential  packages  and
	    fakechroot,  which	installs  the  packages without root privileges.
	    The default, with no --variant=X argument, is to create a  base  De-
	    bian  installation with all packages of priority required and impor-
	    tant, including apt.

     --merged-usr
	    Create /{bin,sbin,lib}/ symlinks pointing to their	counterparts  in
	    /usr/.  (Default for most variants and suites.)

     --no-merged-usr
	    Do	not  create /{bin,sbin,lib}/ symlinks pointing to their counter-
	    parts in /usr/.  (Default for the buildd variant of Debian 12 'book-
	    worm' or older, and all variants of Debian 9 'stretch' or older.)

     --keyring=KEYRING
	    Override the  default  keyring  for  the  distribution  being  boot-
	    strapped,  and  use KEYRING to check signatures of retrieved Release
	    files.

     --no-check-gpg
	    Disables checking gpg signatures of retrieved Release files.

     --force-check-gpg
	    Forces checking Release file signatures, disabling	automatic  fall-
	    back  to  HTTPS  in case of a missing keyring. Incompatible with the
	    previous option.

     --verbose
	    Produce more info about downloading.

     --print-debs
	    Print the packages to be installed, and exit.  Note that an empty or
	    non-existing TARGET directory must be specified so that  debootstrap
	    can  download  Packages  files to determine which packages should be
	    installed, and to resolve dependencies. The TARGET directory will be
	    deleted unless --keep-debootstrap-dir is specified.

     --download-only
	    Download packages, but don't perform installation.

     --foreign
	    Do the initial unpack phase of bootstrapping only,	for  example  if
	    the  target  architecture  does  not match the host architecture.  A
	    copy of debootstrap sufficient for completing the bootstrap  process
	    will be installed as /debootstrap/debootstrap in the target filesys-
	    tem.   You can run it with the --second-stage option to complete the
	    bootstrapping process.

     --second-stage
	    Complete the bootstrapping process.  Other arguments  are  generally
	    not needed.

     --second-stage-target=DIR
	    Run  second stage in a subdirectory instead of root. (can be used to
	    create a foreign chroot) (requires --second-stage)

     --keep-debootstrap-dir
	    Don't delete the /debootstrap directory in the target after complet-
	    ing the installation.

     --cache-dir=DIR
	    Cache .deb files under directory. It should be an absolute path.

     --unpack-tarball=FILE
	    Acquire .debs from gzipped tarball	FILE  (specified  with	absolute
	    path) instead of downloading via HTTP(S).

     --make-tarball=FILE
	    Instead  of  bootstrapping, make a gzipped tarball (written to FILE)
	    of the downloaded packages.  The resulting tarball may be passed  to
	    a later --unpack-tarball.  Note that an empty or non-existing TARGET
	    directory  must  be specified so that debootstrap can download pack-
	    ages to prepare the tarball. The TARGET directory  will  be  deleted
	    unless --keep-debootstrap-dir is specified.

     --debian-installer
	    Used for internal purposes by the debian-installer

     --extractor=TYPE
	    Override  automatic .deb extractor selection to TYPE.  Supported ex-
	    tractors are: dpkg-deb and ar.

     --no-check-certificate
	    Do not check certificate against certificate authorities

     --certificate=FILE
	    Use the client certificate stored in file (PEM)

     --private-key=FILE
	    Read the private key from file

     --inrelease-path
	    Determine the path to the InRelease file of the  suite  relative  to
	    the normal position of an InRelease file

EXAMPLES
     To setup a stretch system:

	  debootstrap stretch ./stretch-chroot http://deb.debian.org/debian

	  debootstrap stretch ./stretch-chroot file:///LOCAL_MIRROR/debian

     Full  process to create a complete Debian installation of sid (unstable) in
     a chroot:

	  main # debootstrap sid sid-root http://deb.debian.org/debian/
	  [ ... watch it download the whole system ]
	  main # echo "proc sid-root/proc proc defaults 0 0" >> /etc/fstab
	  main # mount proc sid-root/proc -t proc
	  main # echo "sysfs sid-root/sys sysfs defaults 0 0" >> /etc/fstab
	  main # mount sysfs sid-root/sys -t sysfs
	  main # cp /etc/hosts sid-root/etc/hosts
	  main # chroot sid-root /bin/bash

AUTHOR
     debootstrap was written by Anthony Towns  <ajt@debian.org>.   This  manpage
     was written by Matt Kraai <kraai@debian.org>.

Debian Project			   2001-04-27			  DEBOOTSTRAP(8)

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