linux内核配置不休眠,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。0b1331709591d260c1c78e86d0c51c18.png

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