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Diffstat (limited to 'mkimage-arch.sh')
-rw-r--r-- | mkimage-arch.sh | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/mkimage-arch.sh b/mkimage-arch.sh new file mode 100644 index 0000000..f751209 --- /dev/null +++ b/mkimage-arch.sh @@ -0,0 +1,126 @@ +#!/usr/bin/env bash +# Generate a minimal filesystem for archlinux and load it into the local +# docker as "archlinux" +# requires root +set -e + +hash pacstrap &>/dev/null || { + echo "Could not find pacstrap. Run pacman -S arch-install-scripts" + exit 1 +} + +hash expect &>/dev/null || { + echo "Could not find expect. Run pacman -S expect" + exit 1 +} + + +export LANG="C.UTF-8" + +ROOTFS=$(mktemp -d ${TMPDIR:-/var/tmp}/rootfs-archlinux-XXXXXXXXXX) +chmod 755 $ROOTFS + +# packages to ignore for space savings +PKGIGNORE=( + cryptsetup + device-mapper + dhcpcd + iproute2 + jfsutils + linux + lvm2 + man-db + man-pages + mdadm + nano + netctl + openresolv + pciutils + pcmciautils + reiserfsprogs + s-nail + systemd-sysvcompat + usbutils + vi + xfsprogs +) +IFS=',' +PKGIGNORE="${PKGIGNORE[*]}" +unset IFS + +arch="$(uname -m)" +case "$arch" in + armv*) + if pacman -Q archlinuxarm-keyring >/dev/null 2>&1; then + pacman-key --init + pacman-key --populate archlinuxarm + else + echo "Could not find archlinuxarm-keyring. Please, install it and run pacman-key --populate archlinuxarm" + exit 1 + fi + PACMAN_CONF=$(mktemp ${TMPDIR:-/var/tmp}/pacman-conf-archlinux-XXXXXXXXX) + version="$(echo $arch | cut -c 5)" + sed "s/Architecture = armv/Architecture = armv${version}h/g" './mkimage-archarm-pacman.conf' > "${PACMAN_CONF}" + PACMAN_MIRRORLIST='Server = http://mirror.archlinuxarm.org/$arch/$repo' + PACMAN_EXTRA_PKGS='archlinuxarm-keyring' + EXPECT_TIMEOUT=1800 # Most armv* based devices can be very slow (e.g. RPiv1) + ARCH_KEYRING=archlinuxarm + DOCKER_IMAGE_NAME="armv${version}h/archlinux" + ;; + *) + PACMAN_CONF='./mkimage-arch-pacman.conf' + PACMAN_MIRRORLIST='Server = https://jpn.mirror.archlinux32.org/$arch/$repo' + PACMAN_EXTRA_PKGS='' + EXPECT_TIMEOUT=60 + ARCH_KEYRING=archlinux + DOCKER_IMAGE_NAME=archlinux + ;; +esac + +export PACMAN_MIRRORLIST + +expect <<EOF + set send_slow {1 .1} + proc send {ignore arg} { + sleep .1 + exp_send -s -- \$arg + } + set timeout $EXPECT_TIMEOUT + + spawn pacstrap -C $PACMAN_CONF -c -d -G -i $ROOTFS base haveged $PACMAN_EXTRA_PKGS --ignore $PKGIGNORE + expect { + -exact "anyway? \[Y/n\] " { send -- "n\r"; exp_continue } + -exact "(default=all): " { send -- "\r"; exp_continue } + -exact "installation? \[Y/n\]" { send -- "y\r"; exp_continue } + -exact "delete it? \[Y/n\]" { send -- "y\r"; exp_continue } + } +EOF + +arch-chroot $ROOTFS /bin/sh -c 'rm -r /usr/share/man/*' +arch-chroot $ROOTFS /bin/sh -c "haveged -w 1024; pacman-key --init; pkill haveged; pacman -Rs --noconfirm haveged; pacman-key --populate $ARCH_KEYRING; pkill gpg-agent" +arch-chroot $ROOTFS /bin/sh -c "ln -s /usr/share/zoneinfo/UTC /etc/localtime" +echo 'en_US.UTF-8 UTF-8' > $ROOTFS/etc/locale.gen +arch-chroot $ROOTFS locale-gen +arch-chroot $ROOTFS /bin/sh -c 'echo $PACMAN_MIRRORLIST > /etc/pacman.d/mirrorlist' + +# udev doesn't work in containers, rebuild /dev +DEV=$ROOTFS/dev +rm -rf $DEV +mkdir -p $DEV +mknod -m 666 $DEV/null c 1 3 +mknod -m 666 $DEV/zero c 1 5 +mknod -m 666 $DEV/random c 1 8 +mknod -m 666 $DEV/urandom c 1 9 +mkdir -m 755 $DEV/pts +mkdir -m 1777 $DEV/shm +mknod -m 666 $DEV/tty c 5 0 +mknod -m 600 $DEV/console c 5 1 +mknod -m 666 $DEV/tty0 c 4 0 +mknod -m 666 $DEV/full c 1 7 +mknod -m 600 $DEV/initctl p +mknod -m 666 $DEV/ptmx c 5 2 +ln -sf /proc/self/fd $DEV/fd + +tar --numeric-owner --xattrs --acls -C $ROOTFS -c . | docker import - $DOCKER_IMAGE_NAME +docker run --rm -t $DOCKER_IMAGE_NAME echo Success. +rm -rf $ROOTFS |