lustre/utils/add_lnet_options.sh

   1 #!/bin/bash
   2 #
   3 # add_lnet_options.sh - add lnet options lines into modprobe.conf or modules.conf
   4 #
   5 #################################################################################
   6
   7 # Check the kernel version
   8 KERNEL_VERSION=`uname -r`
   9 KERNEL_VERSION=${KERNEL_VERSION:0:3}
  10
  11 if [ "${KERNEL_VERSION}" = "2.4" ]; then
  12         MODULE_CONF=/etc/modules.conf
  13 else
  14         MODULE_CONF=/etc/modprobe.conf
  15 fi
  16
  17 read -r NETWORKS
  18 MODLINES_FILE=$"/tmp/modlines.txt"
  19 START_MARKER=$"# start lustre config"
  20 END_MARKER=$"# end lustre config"
  21
  22 # Generate a temp file contains lnet options lines
  23 generate_lnet_lines() {
  24         local LNET_LINE TMP_LINE
  25
  26         TMP_LINE="${NETWORKS}"
  27
  28         echo ${START_MARKER} > ${MODLINES_FILE}
  29         while true; do
  30                 LNET_LINE=${TMP_LINE%%\\n*}
  31                 echo ${LNET_LINE} >> ${MODLINES_FILE}
  32
  33                 TMP_LINE=${TMP_LINE#*\\n}
  34
  35                 if [ "${TMP_LINE}" == "${LNET_LINE}" ]; then
  36                         break
  37                 fi
  38         done
  39         echo ${END_MARKER} >> ${MODLINES_FILE}
  40
  41         #echo "--------------${MODLINES_FILE}--------------"
  42         #cat ${MODLINES_FILE}
  43         #echo -e "------------------------------------------\n"
  44
  45         return 0
  46 }
  47
  48 if ! generate_lnet_lines; then
  49         exit 1
  50 fi
  51
  52 # Add lnet options lines to the module configuration file
  53 if [ -e ${MODULE_CONF} ]; then
  54         # Delete the old options
  55         sed -i "/${START_MARKER}/,/${END_MARKER}/d" ${MODULE_CONF}
  56 fi
  57
  58 cat ${MODLINES_FILE} >> ${MODULE_CONF}
  59 rm -f ${MODLINES_FILE}
  60 exit 0