| #!/bin/bash |
| |
| echo "zfs-generator: starting" >> /dev/kmsg |
| |
| GENERATOR_DIR="$1" |
| [ -n "$GENERATOR_DIR" ] || { |
| echo "zfs-generator: no generator directory specified, exiting" >> /dev/kmsg |
| exit 1 |
| } |
| |
| [ -f /lib/dracut-lib.sh ] && dracutlib=/lib/dracut-lib.sh |
| [ -f /usr/lib/dracut/modules.d/99base/dracut-lib.sh ] && dracutlib=/usr/lib/dracut/modules.d/99base/dracut-lib.sh |
| |
| type getarg >/dev/null 2>&1 || { |
| echo "zfs-generator: loading Dracut library from $dracutlib" >> /dev/kmsg |
| . "$dracutlib" |
| } |
| |
| [ -z "$root" ] && root=$(getarg root=) |
| [ -z "$rootfstype" ] && rootfstype=$(getarg rootfstype=) |
| [ -z "$rootflags" ] && rootflags=$(getarg rootflags=) |
| |
| # If root is not ZFS= or zfs: or rootfstype is not zfs |
| # then we are not supposed to handle it. |
| [ "${root##zfs:}" = "${root}" -a "${root##ZFS=}" = "${root}" -a "$rootfstype" != "zfs" ] && exit 0 |
| |
| rootfstype=zfs |
| if echo "${rootflags}" | grep -Eq '^zfsutil$|^zfsutil,|,zfsutil$|,zfsutil,' ; then |
| true |
| elif test -n "${rootflags}" ; then |
| rootflags="zfsutil,${rootflags}" |
| else |
| rootflags=zfsutil |
| fi |
| |
| echo "zfs-generator: writing extension for sysroot.mount to $GENERATOR_DIR"/sysroot.mount.d/zfs-enhancement.conf >> /dev/kmsg |
| |
| [ -d "$GENERATOR_DIR" ] || mkdir "$GENERATOR_DIR" |
| [ -d "$GENERATOR_DIR"/sysroot.mount.d ] || mkdir "$GENERATOR_DIR"/sysroot.mount.d |
| |
| { |
| echo "[Unit]" |
| echo "Before=initrd-root-fs.target" |
| echo "After=zfs-import.target" |
| echo "[Mount]" |
| if [ "${root}" = "zfs:AUTO" ] ; then |
| echo "PassEnvironment=BOOTFS" |
| echo 'What=${BOOTFS}' |
| else |
| root="${root##zfs:}" |
| root="${root##ZFS=}" |
| echo "What=${root}" |
| fi |
| echo "Type=${rootfstype}" |
| echo "Options=${rootflags}" |
| } > "$GENERATOR_DIR"/sysroot.mount.d/zfs-enhancement.conf |
| |
| [ -d "$GENERATOR_DIR"/initrd-root-fs.target.requires ] || mkdir -p "$GENERATOR_DIR"/initrd-root-fs.target.requires |
| ln -s ../sysroot.mount "$GENERATOR_DIR"/initrd-root-fs.target.requires/sysroot.mount |
| |
| echo "zfs-generator: finished" >> /dev/kmsg |