howto build the build environment

 apt-get install cowbuilder git-buildpackage debootstrap 

 sudo cowbuilder --create --basepath=/var/cache/pbuilder/base-sid.cow --mirror http://ftp.de.debian.org/debian --distribution sid 

 sudo cowbuilder --login --basepath=/var/cache/pbuilder/base-sid.cow 

sudo cp /usr/share/doc/git-buildpackage/examples/gbp-cowbuilder-sid /usr/local/bin/ 

cp /etc/pbuilder/pbuilderrc /etc/pbuilder/pbuilderrc.sid

#  /etc/pbuilder/pbuilderrc.sid
...
BASEPATH=/var/cache/pbuilder/base-sid.cow

# /etc/pbuilder/pbuilderrc.lenny
...
BASEPATH=/var/cache/pbuilder/base-lenny.cow

wget https://honk.sigxcpu.org/piki/projects/git-buildpackage/gbp.conf
mv gbp.conf ~/.gbp.conf 

alias gbp-lenny='nice -19 git-buildpackage --git-builder=gbp-cowbuilder-lenny'
alias gbp-sid='nice -19 git-buildpackage --git-builder=gbp-cowbuilder-sid'

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