Updated: reworked style and text, add fix for supported filesystems workaround - aufs works only on jessie or earlier
Used documents and topics:
- https://wiki.debian.org/mk-sbuild
- https://log.cyconet.org/2013/11/25/crossbuilding-debian-packages-with-sbuild-for-raspbian/
- https://gist.github.com/waja/7639011
Install requirements, add user, set distribution, etc. to build chroot and package
Install required packages
$ apt-get install sudo gnupg dirmngr curl sbuild ubuntu-dev-tools qemu-user-static binfmt-support
Recommended to work under user with full sudo access without password prompting.
sudo needed to install packages and mount chroot, requrement of mk-sbuild.
You can ignore second line if want every time write password when it asked.
$ sudo useradd -m -s /bin/bash -G sudo,sbuild builder
$ sudo bash -c 'echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers'
Login as builder user and set release variable which we will build chroot for
$ sudo su - builder
$ export RELEASE="stretch"
Next 4 steps (till 8th) can be skipped if you already own needed environment
Creating keyring for raspbian archive used by debootstrap
$ curl -sL http://archive.raspbian.org/raspbian.public.key | gpg --import -
$ gpg --export 9165938D90FDDD2E > $HOME/raspbian-archive-keyring.gpg
Write sources.list template
$ cat > $HOME/rpi.sources <<EOF
deb http://archive.raspbian.org/raspbian/ RELEASE main contrib non-free rpi
deb-src http://archive.raspbian.org/raspbian/ RELEASE main contrib non-free rpi
EOF
Set-up mk-sbuild
$ cat > $HOME/.mk-sbuild.rc <<EOF
SOURCE_CHROOTS_DIR="$HOME/chroots"
DEBOOTSTRAP_KEYRING="$HOME/raspbian-archive-keyring.gpg"
TEMPLATE_SOURCES="$HOME/rpi.sources"
SKIP_UPDATES="1"
SKIP_PROPOSED="1"
SKIP_SECURITY="1"
EATMYDATA="1"
EOF
Create chroot and configure
$ mk-sbuild --name $RELEASE-rpi --arch=armhf --debootstrap-mirror=http://archive.raspbian.org/raspbian/ $RELEASE
$ sudo sed -i 's/union-type=aufs/union-type=overlay/g' /etc/schroot/chroot.d/sbuild-$RELEASE-rpi-armhf
Build package
$ sbuild --arch=armhf -c $RELEASE-rpi-armhf -d $RELEASE <package>.dsc
Later you can use it without defining $RELEASE
$ sbuild --arch=armhf -c stretch-rpi-armhf -d stretch <package>.dsc