modules.d/95dasd_rules/module-setup.sh

   1 #!/bin/bash
   2
   3 # called by dracut
   4 cmdline() {
   5     is_dasd() {
   6         local _dev=$1
   7         local _devpath=$(cd -P /sys/dev/block/$_dev ; echo $PWD)
   8
   9         [ "${_devpath#*/dasd}" == "$_devpath" ] && return 1
  10         _ccw="${_devpath%%/block/*}"
  11         echo "rd.dasd=${_ccw##*/}"
  12         return 0
  13     }
  14     [[ $hostonly ]] || [[ $mount_needs ]] && {
  15         for_each_host_dev_and_slaves_all is_dasd || return 255
  16     } | sort | uniq
  17 }
  18
  19 # called by dracut
  20 check() {
  21     local _arch=$(uname -m)
  22     local found=0
  23     local bdev
  24     [ "$_arch" = "s390" -o "$_arch" = "s390x" ] || return 1
  25     require_binaries /usr/lib/udev/collect || return 1
  26
  27     [[ $hostonly ]] || [[ $mount_needs ]] && {
  28         for bdev in /sys/block/* ; do
  29             case "${bdev##*/}" in
  30                 dasd*)
  31                     found=$(($found+1));
  32                     break;
  33             esac
  34         done
  35         [ $found -eq 0 ] && return 255
  36     }
  37     return 0
  38 }
  39
  40 # called by dracut
  41 depends() {
  42     echo 'dasd_mod'
  43     return 0
  44 }
  45
  46 # called by dracut
  47 install() {
  48     inst_multiple /usr/lib/udev/collect
  49     inst_hook cmdline 30 "$moddir/parse-dasd.sh"
  50     if [[ $hostonly_cmdline == "yes" ]] ; then
  51         local _dasd=$(cmdline)
  52         [[ $_dasd ]] && printf "%s\n" "$_dasd" >> "${initdir}/etc/cmdline.d/95dasd.conf"
  53     fi
  54     if [[ $hostonly ]] ; then
  55         inst_rules_wildcard 51-dasd-*.rules
  56         inst_rules_wildcard 41-s390x-dasd-*.rules
  57         mark_hostonly /etc/udev/rules.d/51-dasd-*.rules
  58         mark_hostonly /etc/udev/rules.d/41-s390x-dasd-*.rules
  59     fi
  60     inst_rules 59-dasd.rules
  61 }