contrib/dracut/90zfs/module-setup.sh.in

   1 #!/usr/bin/env bash
   2 # shellcheck disable=SC2154
   3
   4 check() {
   5         # We depend on udev-rules being loaded
   6         [ "${1}" = "-d" ] && return 0
   7
   8         # Verify the zfs tool chain
   9         for tool in "zgenhostid" "zpool" "zfs" "mount.zfs"; do
  10                 command -v "${tool}" >/dev/null || return 1
  11         done
  12 }
  13
  14 depends() {
  15         echo udev-rules
  16 }
  17
  18 installkernel() {
  19         instmods -c zfs
  20 }
  21
  22 install() {
  23         inst_rules 90-zfs.rules 69-vdev.rules 60-zvol.rules
  24
  25         inst_multiple \
  26                 zgenhostid \
  27                 zfs \
  28                 zpool \
  29                 mount.zfs \
  30                 hostid \
  31                 grep \
  32                 awk \
  33                 tr \
  34                 cut \
  35                 head ||
  36                 { dfatal "Failed to install essential binaries"; exit 1; }
  37
  38         # Adapted from https://github.com/zbm-dev/zfsbootmenu
  39         if ! ldd "$(command -v zpool)" | grep -qF 'libgcc_s.so'; then
  40                 # On systems with gcc-config (Gentoo, Funtoo, etc.), use it to find libgcc_s
  41                 if command -v gcc-config >/dev/null; then
  42                         inst_simple "/usr/lib/gcc/$(s=$(gcc-config -c); echo "${s%-*}/${s##*-}")/libgcc_s.so.1" ||
  43                                 { dfatal "Unable to install libgcc_s.so"; exit 1; }
  44                         # Otherwise, use dracut's library installation function to find the right one
  45                 elif ! inst_libdir_file "libgcc_s.so*"; then
  46                         # If all else fails, just try looking for some gcc arch directory
  47                         inst_simple /usr/lib/gcc/*/*/libgcc_s.so* ||
  48                                 { dfatal "Unable to install libgcc_s.so"; exit 1; }
  49                 fi
  50         fi
  51
  52         inst_hook cmdline 95 "${moddir}/parse-zfs.sh"
  53         if [ -n "${systemdutildir}" ]; then
  54                 inst_script "${moddir}/zfs-generator.sh" "${systemdutildir}/system-generators/dracut-zfs-generator"
  55         fi
  56         inst_hook pre-mount 90 "${moddir}/zfs-load-key.sh"
  57         inst_hook mount 98 "${moddir}/mount-zfs.sh"
  58         inst_hook cleanup 99 "${moddir}/zfs-needshutdown.sh"
  59         inst_hook shutdown 20 "${moddir}/export-zfs.sh"
  60
  61         inst_script "${moddir}/zfs-lib.sh" "/lib/dracut-zfs-lib.sh"
  62
  63         # -H ensures they are marked host-only
  64         # -o ensures there is no error upon absence of these files
  65         inst_multiple -o -H \
  66                 "@sysconfdir@/zfs/zpool.cache" \
  67                 "@sysconfdir@/zfs/vdev_id.conf"
  68
  69         # Synchronize initramfs and system hostid
  70         if ! inst_simple -H @sysconfdir@/hostid; then
  71                 if HOSTID="$(hostid 2>/dev/null)" && [ "${HOSTID}" != "00000000" ]; then
  72                         zgenhostid -o "${initdir}@sysconfdir@/hostid" "${HOSTID}"
  73                         mark_hostonly @sysconfdir@/hostid
  74                 fi
  75         fi
  76
  77         if dracut_module_included "systemd"; then
  78                 inst_simple "${systemdsystemunitdir}/zfs-import.target"
  79                 systemctl -q --root "${initdir}" add-wants initrd.target zfs-import.target
  80
  81                 inst_simple "${moddir}/zfs-env-bootfs.service" "${systemdsystemunitdir}/zfs-env-bootfs.service"
  82                 systemctl -q --root "${initdir}" add-wants zfs-import.target zfs-env-bootfs.service
  83
  84                 # Add user-provided unit overrides:
  85                 # - /etc/systemd/system/${_service}
  86                 # - /etc/systemd/system/${_service}.d/overrides.conf
  87                 # -H ensures they are marked host-only
  88                 # -o ensures there is no error upon absence of these files
  89                 inst_multiple -o -H \
  90                         "${systemdsystemconfdir}/zfs-import.target" \
  91                         "${systemdsystemconfdir}/zfs-import.target.d/"*.conf
  92
  93                 for _service in \
  94                         "zfs-import-scan.service" \
  95                         "zfs-import-cache.service"; do
  96                         inst_simple "${systemdsystemunitdir}/${_service}"
  97                         systemctl -q --root "${initdir}" add-wants zfs-import.target "${_service}"
  98
  99                         # Add user-provided unit overrides:
 100                         # - /etc/systemd/system/${_service}
 101                         # - /etc/systemd/system/${_service}.d/overrides.conf
 102                         # -H ensures they are marked host-only
 103                         # -o ensures there is no error upon absence of these files
 104                         inst_multiple -o -H \
 105                                 "${systemdsystemconfdir}/${_service}" \
 106                                 "${systemdsystemconfdir}/${_service}.d/"*.conf
 107
 108                 done
 109
 110                 for _service in \
 111                         "zfs-snapshot-bootfs.service" \
 112                         "zfs-rollback-bootfs.service"; do
 113                         inst_simple "${moddir}/${_service}" "${systemdsystemunitdir}/${_service}"
 114                         systemctl -q --root "${initdir}" add-wants initrd.target "${_service}"
 115
 116                         # Add user-provided unit overrides:
 117                         # - /etc/systemd/system/${_service}
 118                         # - /etc/systemd/system/${_service}.d/overrides.conf
 119                         # -H ensures they are marked host-only
 120                         # -o ensures there is no error upon absence of these files
 121                         inst_multiple -o -H \
 122                                 "${systemdsystemconfdir}/${_service}" \
 123                                 "${systemdsystemconfdir}/${_service}.d/"*.conf
 124                 done
 125
 126                 inst_simple "${moddir}/import-opts-generator.sh" "${systemdutildir}/system-environment-generators/zfs-import-opts.sh"
 127         fi
 128 }