屏幕亮度用Fn控制的调节设,linux和windows在两个硬

  当一台电脑上有两个硬盘时,这两块硬盘就有一个主从关系。

CentOS优化笔记

亲测配置:

系统:Linux Lite 3.2 x86_64(Ubuntu其他版本可参考修改)

笔记本:华硕(asus)1201N

Linux Lite 3.2发布下载,基于Ubuntu 16.04.1  见 http://www.linuxidc.com/Linux/2016-11/136630.htm

  如果你的windows在主盘上,grub会找到windows的启动分区并自动添加,这样比较好办。

设置固定IP

vi /etc/sysconfig/network-scripts/ifcfg-eth0
ONBOOT=yes
BOOTPROTO=none
DNS1=202.96.209.133
IPADDR=192.168.159.68
PREFIX=24
GATEWAY=192.168.159.2

达到的效果:

可以正常使用Fn F5调暗,Fn F6调亮.

  如果你的windows在从盘上,用网上说的在menu.lst中添加:

修改yum源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

设置步骤:

  • 修改/etc/default/目录下文件grub

将15~16行内容:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

修改为如下内容

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"
GRUB_CMDLINE_LINUX="acpi_backlight=asus"

备注:上面asus是华硕(我的笔记本电脑是华硕的品牌)

  • 在终端输入命令
sudo update-grub
  • 重启电脑

附:修改后的grub文件:

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#  info -f grub -n 'Simple configuration'
 
GRUB_DEFAULT=saved
#GRUB_DEFAULT=0
GRUB_SAVEDEFAULT=true
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR='Linux Lite'
#GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
#GRUB_DISTRIBUTOR=`lsb_release -d 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"
GRUB_CMDLINE_LINUX="acpi_backlight=asus"
 
# Linux Lite Grub background
GRUB_BACKGROUND="/boot/grub_linux_lite.png"
 
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
 
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
 
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
 
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
 
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
 
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

本文永久更新链接地址:http://www.linuxidc.com/Linux/2017-01/139218.htm

图片 1

title windowsXP
root(hd1,0)
chainloader 1

同步时间

yum install ntpdate
#修改时区立即生效
cp /usr/share/zoneinfo/UTC /etc/localtime
#cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
#修改时间
date -s "12/24/16 18:05:00"
hwclock -w
#hwclock -s (--hctosys)
#查看时间
date
date " %Y-%m-%d %H:%M:%S"
#UTC时间
date -u
hwclock
#同步时间
ntpdate time.nist.gov
crontab -e
*/5 * * * * /usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1

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