| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 |