LINUX实现待机和休眠

EVOC BIOS默认值是将ACPI打开APM关闭,测试时只针对ACPI两种模式

(sleep和hibernation)进行测试即可;

1. (sleep睡眠模式)
以root用户名登陆当前系统

1.1 查看当前内核能支持哪些睡眠模式:
# cat /sys/power/state
mem disk (内核只支持两种睡眠模式)

1. 2 键入命令:
# echo "mem" > /sys/power/state

1.3
按主板power键恢复(唤醒)至之前画面

2. (hibernation休眠)
2.1 休眠默认支持两种方式:shutdown和platform
2.4内核使用shutdown
2.6内核使用platform

2.2 休眠需指定resume设备,一般都用swap分区来做。

指定方式更改grub启动给内核传递唤醒参数是:
#vi /etc/grub

grub配置:
# grub.conf generated by anaconda
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,4)
# kernel /boot/vmlinuz-version ro root=/dev/hda5
# initrd /boot/initrd-version.img
#boot=/dev/hda
default=0
timeout=5
splashimage=(hd0,4)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora Core (FC6-hibernation)
root (hd0,4)
kernel /boot/vmlinuz-2.6.18-1.2798.fc6 ro root=LABEL=/ rhgb quiet
initrd /boot/initrd-2.6.18-1.2798.fc6.img 将kernel项更改为
kernel /boot/vmlinuz-2.6.18-1.2798.fc6 ro root=LABEL=/ rhgb quiet resume=/dev/hda6

保存退出重启再以root用户登录

2.3 键入命令:
# echo platform > /sys/power/disk; echo disk > /sys/power/state or # echo shutdown > /sys/power/disk; echo disk > /sys/power/state

进入状态10秒后,按power键进行唤醒。