package/boot/kexec-tools/files/kdump.defaults

   1 #!/bin/sh
   2
   3 # kB disable if mem low than 256MB
   4 memtotal=`grep MemTotal /proc/meminfo | awk '{print $2}'`
   5 if test $memtotal -le 262144; then
   6         exit 0
   7 fi
   8 KZ=128
   9 if test $memtotal -ge 8388608; then
  10         KZ=512
  11 elif test $memtotal -ge 4194304; then
  12         KZ=256
  13 fi
  14
  15 case $(uname -m) in
  16         i?86|x86_64)
  17                 if ! grep -q crashkernel /boot/grub/grub.cfg; then
  18                         mount /boot -o remount,rw
  19                         sed -i "s/linux.*/& crashkernel=${KZ}M/" /boot/grub/grub.cfg
  20                         mount /boot -o remount,ro
  21                 fi
  22                 ;;
  23 esac