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

   1 #!/bin/bash
   2
   3 # called by dracut
   4 check() {
   5     local _rootdev
   6
   7     # if an nbd device is not somewhere in the chain of devices root is
   8     # mounted on, fail the hostonly check.
   9     [[ $hostonly ]] || [[ $mount_needs ]] && {
  10         is_nbd() { [[ -b /dev/block/$1 && $1 == 43:* ]] ;}
  11
  12         _rootdev=$(find_root_block_device)
  13         [[ -b /dev/block/$_rootdev ]] || return 1
  14         check_block_and_slaves is_nbd "$_rootdev" || return 255
  15     }
  16     require_binaries nbd-client || return 1
  17
  18     return 0
  19 }
  20
  21 # called by dracut
  22 depends() {
  23     # We depend on network modules being loaded
  24     echo network rootfs-block
  25 }
  26
  27 # called by dracut
  28 installkernel() {
  29     instmods nbd
  30 }
  31
  32 # called by dracut
  33 install() {
  34     inst nbd-client
  35     inst_hook cmdline 90 "$moddir/parse-nbdroot.sh"
  36     inst_script "$moddir/nbdroot.sh" "/sbin/nbdroot"
  37     dracut_need_initqueue
  38 }
  39