View source for Utilizzare pbuilder per compilare pacchetti debian di architetture diverse

Su un host AMD64 si possono compilare pacchetti per i386 e amd64.

==TODO==

*[http://wiki.ludomatic.fr/Pbuilder/raw ]
*[https://wiki.ubuntu.com/PbuilderHowto#Running_a_Shell_When_Build_Fails_.28Intro_to_Hook_Scripts.29 PbuilderHowto - Ubuntu Wiki]

==Installazione e configurazione di Pbuilder==
* Installare pbuilder
 sudo aptitude install pbuilder debootstrap devscripts cdebootstrap

* Configuralo in modo da supportare più architetture e distribuzioni settando delle variabili:
(Vedi *[http://www.megatunix.com/using-pbuilder-for-making-packages/ Using Pbuilder for making Debian and/or Ubuntu Packages | MegaTunix])

<pre>
cat > /root/.pbuilderrc <<'EOFile'
# Proxy configuration
# Uncomment the next line if using apt-cacher-ng on the local machine
#export http_proxy=http://localhost:3142/
# Uncomment the next line if using squid-deb-proxy on the local machine.
#export http_proxy=http://localhost:8000/

# Codenames for Debian suites according to their alias. Update these when needed.
UNSTABLE_CODENAME="sid"
TESTING_CODENAME="jessie"
STABLE_CODENAME="wheezy"
STABLE_BACKPORTS_SUITE="$STABLE_CODENAME-backports"

# List of Debian suites.
DEBIAN_SUITES=($UNSTABLE_CODENAME $TESTING_CODENAME $STABLE_CODENAME
"unstable" "testing" "stable")

# List of Ubuntu suites. Update these when needed.
UBUNTU_SUITES=("saucy" "raring" "quantal" "precise" "trusty")

# Mirrors to use. Update these to your preferred mirror.
DEBIAN_MIRROR="ftp.us.debian.org"
UBUNTU_MIRROR="mirrors.kernel.org"

# Optionally use the changelog of a package to determine the suite to use if
# none set.
if [ -z "${DIST}" ] && [ -r "debian/changelog" ]; then
DIST=$(dpkg-parsechangelog | awk '/^Distribution: / {print $2}')
# Use the unstable suite for certain suite values.
if $(echo "experimental UNRELEASED" | grep -q $DIST); then
DIST="$UNSTABLE_CODENAME"
fi
fi

# Optionally set a default distribution if none is used. Note that you can set
# your own default (i.e. ${DIST:="unstable"}).
: ${DIST:="$(lsb_release --short --codename)"}

# Optionally change Debian release states in $DIST to their names.
case "$DIST" in
unstable)
DIST="$UNSTABLE_CODENAME"
;;
testing)
DIST="$TESTING_CODENAME"
;;
stable)
DIST="$STABLE_CODENAME"
;;
esac

# Optionally set the architecture to the host architecture if none set. Note
# that you can set your own default (i.e. ${ARCH:="i386"}).
: ${ARCH:="$(dpkg --print-architecture)"}

NAME="$DIST"
if [ -n "${ARCH}" ]; then
NAME="$NAME-$ARCH"
DEBOOTSTRAPOPTS=("--arch" "$ARCH" "${DEBOOTSTRAPOPTS[@]}")
fi
BASETGZ="/var/cache/pbuilder/$NAME-base.tgz"
# Optionally, set BASEPATH (and not BASETGZ) if using cowbuilder
# BASEPATH="/var/cache/pbuilder/$NAME/base.cow/"
DISTRIBUTION="$DIST"
BUILDRESULT="/var/cache/pbuilder/$NAME/result/"
APTCACHE="/var/cache/pbuilder/aptcache/$NAME/"
BUILDPLACE="/var/cache/pbuilder/build/"

if $(echo ${DEBIAN_SUITES[@]} | grep -q $DIST); then
# Debian configuration
MIRRORSITE="http://$DEBIAN_MIRROR/debian/"
COMPONENTS="main contrib non-free"
# This is for enabling backports for the Debian stable suite.
#if $(echo "$STABLE_CODENAME stable" | grep -q $DIST); then
# EXTRAPACKAGES="$EXTRAPACKAGES debian-backports-keyring"
# OTHERMIRROR="$OTHERMIRROR | deb http://www.backports.org/debian $STABLE_BACKPORTS_SUITE $COMPONENTS"
#fi
elif $(echo ${UBUNTU_SUITES[@]} | grep -q $DIST); then
# Ubuntu configuration
MIRRORSITE="http://$UBUNTU_MIRROR/ubuntu/"
COMPONENTS="main restricted universe multiverse"
else
echo "Unknown distribution: $DIST"
exit 1
fi
EOFile
</pre>

* Creare le tarball per la chroot delle due architetture:
 sudo -i

 DIST=wheezy ARCH=amd64 pbuilder --create --debootstrap debootstrap --debootstrapopts --keyring=/usr/share/keyrings/debian-archive-keyring.gpg

 sudo DIST=lenny ARCH=i386 pbuilder create -debootstrapopts --variant=buildd
 sudo DIST=lenny ARCH=amd64 pbuilder create -debootstrapopts --variant=buildd

==Aggiornamento della tarball image==

* Prima di ogni build, è meglio aggiornare la relativa immagine ad esempio con:
  sudo DIST=lenny ARCH=i386 pbuilder update

==Compilazione di un pacchetto con file .dsc==

* Ipotizzando di avere già un pacchetto da compilare con un file .dsc, invece di usare dpkg-buildpackage, usare:
 sudo DIST=lenny ARCH=i386 pbuilder build iptables-initd_1.0.0-4.dsc

* I pacchetti risultanti saranno in
 /var/cache/pbuilder/lenny-i386/result/

* Se si devono utilizzare delle opzioni da passare dpkg-buildpackage, usarle così:

 export DEBFULLNAME="Gabriele Vivinetto"
 export DEBEMAIL=gabriele.mailing@rvmgroup.it
 sudo DIST=lenny ARCH=i386 pbuilder build --debbuildopts -kF6D289F6 -tc pigz_2.1.6-1.dsc


==Compilazione di un pacchetto per backport==
* Prelevare i sorgenti con:
 dget http://ftp.de.debian.org/debian/pool/main/a/amanda/amanda_3.2.1-1.1.dsc

* Oppure manualmente dalla pagine del pacchetto source di packages.debian.org

* A questo punto proseguire come al punto precedente

==Compilazione di un pacchetto con sorgenti==
* Utilizzare pdebuild, che produce i .dsc, e poi proseguire
 sudo DIST=squeeze ARCH=amd64 pdebuild
 sudo DIST=squeeze ARCH=amd64 pbuilder build iptables-initd_1.0.0-5.dsc

==Riferimenti==
*[https://wiki.ubuntu.com/PbuilderHowto#The%20First%20Steps PbuilderHowto - Ubuntu Wiki]
*[http://wiki.debian.org/PbuilderTricks PbuilderTricks - Debian Wiki]
*[http://www.netfort.gr.jp/~dancer/software/pbuilder-doc/pbuilder-doc.html#amd64i386 pbuilder User's Manual]
*[http://www.kirya.net/articles/build-i386-packages-on-amd64/ Build i386 packages on amd64 « Julien Valroff]
*[http://users.telenet.be/mydotcom/howto/linux/package02.htm Howto Compile and create Debian Packages from source]
*[http://www.tolaris.com/2009/03/31/backporting-debian-packages-with-pbuilder/ Backporting Debian packages with pbuilder | tolaris.com]