1 # Generator for Oktopus boot media
2 # Copyright (C) 2018 Hochschule für Technik und Wirtschaft Berlin
3 # written by Paul Hänsch <oktopus@plutz.net>
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU Affero General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU Affero General Public License for more details.
15 # You should have received a copy of the GNU Affero General Public License
16 # along with this program. If not, see <https://www.gnu.org/licenses/>.
20 BOOTSTRAP = http://raspbian.raspberrypi.org/raspbian
23 deb http://raspbian.raspberrypi.org/raspbian stretch main non-free firmware rpi
24 deb http://archive.raspberrypi.org/debian stretch main
27 PACKAGES := apt bluez bluez-firmware bluez-tools btrfs-tools busybox-static bzip2 ca-certificates cron debian-archive-keyring deborphan firmware-brcm80211 firmware-linux-free firmware-misc-nonfree gzip htop ifupdown init iputils-ping irqbalance isc-dhcp-client less libraspberrypi-bin libraspberrypi0 make net-tools nmap ntpdate openssh-client openssh-server pi-bluetooth psmisc raspberrypi-bootloader raspberrypi-kernel rsync ssh sshfs sudo systemd traceroute unzip vim wget wireless-tools wpasupplicant xz-utils zip
31 config.mk: config.example
35 .PHONY: imgfile imgmount root_copy norecommends apt_keys wifi_cfg ssh_key busybox
41 btrfs subvolume create "$@" || mkdir "$@"
44 cp -p "/usr/bin/qemu-arm-static" "$@/usr/bin/"
45 debootstrap --keyring=./raspbian-archive-keyring.gpg \
46 --arch=armhf --variant=minbase \
47 stretch "$@/" "${BOOTSTRAP}"
49 norecommends: raspi_root/etc/apt/apt.conf.d/10norecommends
50 raspi_root/etc/apt/apt.conf.d/10norecommends: raspi_root
51 mkdir -p "$</etc/apt/apt.conf.d/"
52 printf 'APT::Install-Recommends "false";\n' >"$@"
56 -chroot "$<" apt-key add - <./raspbian-archive-keyring.gpg
57 -chroot "$<" apt-key add - <./raspberrypi-archive-keyring.gpg
58 -chroot "$<" apt-key add - <./debian-archive-stretch-stable.gpg
60 raspi_root/: raspi_root norecommends apt_keys .FORCE
61 printf %s "$$SOURCES" >$@/etc/apt/sources.list
62 -cp /etc/resolv.conf "$@etc/"
63 -chroot "$@" sh -c 'apt-mark showmanual |xargs apt-mark auto'
64 -chroot "$@" apt-get update
65 chroot "$@" ln -sf /bin/true /usr/local/sbin/invoke-rc.d
66 chroot "$@" apt-get --yes install ${PACKAGES}
67 chroot "$@" apt-get --yes --auto-remove purge
68 -chroot "$@" apt-get --yes --auto-remove upgrade
69 chroot "$@" apt-get clean
70 chroot "$@" rm /usr/local/sbin/invoke-rc.d
73 imgfile: raspi_root/ # do not set up image file before chroot
75 dd bs=1M count=0 seek=1280 of="${IMGFILE}" # set up sparse file
76 sfdisk "${IMGFILE}" <partitions
80 mkdir "$@" # fail receipe if dir is nonempty
81 lo=$$(losetup -f); image='${IMGFILE}'; \
82 start=$$(sfdisk --dump "$$image" |sed -rn 's;^.*start= *([0-9]+),.*type=83;\1;p'); \
83 size=$$(sfdisk --dump "$$image" |sed -rn 's;^.*size= *([0-9]+),.*type=83;\1;p'); \
84 losetup -o $$((start * 512)) --sizelimit $$((size * 512)) "$${lo}" "$$image" && \
85 mkfs.ext4 -F "$$lo" && mount -t ext4 "$$lo" "$@/";
87 lo=$$(losetup -f); image='${IMGFILE}'; \
88 start=$$(sfdisk --dump "$$image" |sed -rn 's;^.*start= *([0-9]+),.*type=c;\1;p'); \
89 size=$$(sfdisk --dump "$$image" |sed -rn 's;^.*size= *([0-9]+),.*type=c;\1;p'); \
90 losetup -o $$((start * 512)) --sizelimit $$((size * 512)) "$${lo}" "$$image" && \
91 mkfs.fat -F 32 -n boot "$$lo" && mount -t vfat "$$lo" "$@/boot";
93 root_copy: imgmount raspi_root/ files/
94 cp -a "raspi_root/." "files/." "$</"
97 ssh-keygen -b 2048 -t rsa -N '' -f id_rsa
99 ssh_key: imgmount root_copy id_rsa.pub
100 mkdir -p "$</root/.ssh/"
101 cat id_rsa.pub >>"$</root/.ssh/authorized_keys"
102 chmod 700 "$</root" "$</root/.ssh"
103 chmod 600 "$</root/.ssh/authorized_keys"
105 wifi_cfg: imgmount root_copy
106 printf '%s\n' "$$WIFI_CFG" >"$</etc/network/interfaces.d/wifi"
107 chmod 644 "$</etc/network/interfaces.d/wifi"
109 busybox: imgmount root_copy
110 mkdir -p -m 755 "$</opt/busybox"
111 chroot "$<" busybox --install -s /opt/busybox
113 ${IMGFILE}: imgmount root_copy wifi_cfg ssh_key busybox
114 umount "$</boot/" "$</"
115 losetup -a |sed -En '/${IMGFILE}/{s;^([^:]+):.*$$;\1;p;q}' |xargs losetup -d
116 losetup -a |sed -En '/${IMGFILE}/{s;^([^:]+):.*$$;\1;p;q}' |xargs losetup -d