diff --git a/contrib/mkimage-crux.sh b/contrib/mkimage-crux.sh new file mode 100755 index 0000000000..074c334bba --- /dev/null +++ b/contrib/mkimage-crux.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# Generate a minimal filesystem for CRUX/Linux and load it into the local +# docker as "cruxlinux" +# requires root and the crux iso (http://crux.nu) + +set -e + +die () { + echo >&2 "$@" + exit 1 +} + +[ "$#" -eq 1 ] || die "1 argument(s) required, $# provided. Usage: ./mkimage-crux.sh /path/to/iso" + +ISO=${1} + +ROOTFS=$(mktemp -d /tmp/rootfs-crux-XXXXXXXXXX) +CRUX=$(mktemp -d /tmp/crux-XXXXXXXXXX) +TMP=$(mktemp -d /tmp/XXXXXXXXXX) + +VERSION=$(basename --suffix=.iso $ISO | sed 's/[^0-9.]*\([0-9.]*\).*/\1/') + +# Mount the ISO +mount -o ro,loop $ISO $CRUX + +# Extract pkgutils +tar -C $TMP -xf $CRUX/tools/pkgutils#*.pkg.tar.gz + +# Put pkgadd in the $PATH +export PATH="$TMP/usr/bin:$PATH" + +# Install core packages +mkdir -p $ROOTFS/var/lib/pkg +touch $ROOTFS/var/lib/pkg/db +for pkg in $CRUX/crux/core/*; do + pkgadd -r $ROOTFS $pkg +done + +# Remove agetty and inittab config +if (grep agetty ${ROOTFS}/etc/inittab 2>&1 > /dev/null); then + echo "Removing agetty from /etc/inittab ..." + chroot ${ROOTFS} sed -i -e "/agetty/d" /etc/inittab + chroot ${ROOTFS} sed -i -e "/shutdown/d" /etc/inittab + chroot ${ROOTFS} sed -i -e "/^$/N;/^\n$/d" /etc/inittab +fi + +# Remove kernel source +rm -rf $ROOTFS/usr/src/* + +# udev doesn't work in containers, rebuild /dev +DEV=$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 $DEV/ptmx c 5 2 + +IMAGE_ID=$(tar --numeric-owner -C $ROOTFS -c . | docker import - crux:$VERSION) +docker tag $IMAGE_ID crux:latest +docker run -i -t crux echo Success. + +# Cleanup +umount $CRUX +rm -rf $ROOTFS +rm -rf $CRUX +rm -rf $TMP