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

   1 #!/bin/bash
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4
   5 check() {
   6     local _rootdev
   7     # If our prerequisites are not met, fail anyways.
   8     type -P iscsistart hostname iscsi-iname >/dev/null || return 1
   9
  10     # If hostonly was requested, fail the check if we are not actually
  11     # booting from root.
  12
  13     . $dracutfunctions
  14
  15     [[ $debug ]] && set -x
  16
  17     is_iscsi() (
  18         local _dev
  19         _dev=$(get_maj_min $1)
  20
  21         [[ -L /sys/dev/block/$_dev ]] || return
  22         cd "$(readlink -f /sys/dev/block/$_dev)"
  23         until [[ -d sys || -d iscsi_session ]]; do
  24             cd ..
  25         done
  26         [[ -d iscsi_session ]]
  27     )
  28
  29     [[ $hostonly ]] || [[ $mount_needs ]] && {
  30         for_each_host_dev_fs is_iscsi || return 1
  31     }
  32     return 0
  33 }
  34
  35 depends() {
  36     echo network rootfs-block
  37 }
  38
  39 installkernel() {
  40     instmods iscsi_tcp iscsi_ibft crc32c bnx2i iscsi_boot_sysfs qla4xxx cxgb3i cxgb4i be2iscsi
  41     iscsi_module_filter() {
  42         local _iscsifuncs='iscsi_register_transport'
  43         local _f
  44         while read _f; do case "$_f" in
  45             *.ko)    [[ $(<         $_f) =~ $_iscsifuncs ]] && echo "$_f" ;;
  46             *.ko.gz) [[ $(gzip -dc <$_f) =~ $_iscsifuncs ]] && echo "$_f" ;;
  47             *.ko.xz) [[ $(xz -dc   <$_f) =~ $_iscsifuncs ]] && echo "$_f" ;;
  48             esac
  49         done
  50     }
  51     { find_kernel_modules_by_path drivers/scsi; find_kernel_modules_by_path drivers/s390/scsi; } \
  52     | iscsi_module_filter  |  instmods
  53 }
  54
  55 install() {
  56     dracut_install umount
  57     dracut_install -o iscsiuio
  58     inst iscsistart
  59     inst hostname
  60     inst iscsi-iname
  61     inst_hook cmdline 90 "$moddir/parse-iscsiroot.sh"
  62     inst_hook cleanup 90 "$moddir/cleanup-iscsi.sh"
  63     inst "$moddir/iscsiroot.sh" "/sbin/iscsiroot"
  64     inst "$moddir/mount-lun.sh" "/bin/mount-lun.sh"
  65 }