centos 6.3 安装使用笔记分享
	sudo vim /etc/yum.repos.d/CentOS-Base.repo 
	 
代码如下:
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
	
	
	接下来里面更新:sudo yum update 
	
	更新完后,下载几个字体,wqy-microhei.ttc,YaHeiConsolas,Microsoft_YaHei等,然后在系统设置->外观里面修改默认字体。 
	
	———RPMforge repository————— 
	
	有时候有些软件可能在中心的repo里面的没有,这时候最好使用RPMforge repository,但是这样来的话升级的时候会有version冲突,于是可以这样子设置: 
	
	先下载RPMForge的repo: 
	
	wget http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-1.el6.rf.x86_64.rpm 
	
	安装: 
	
	rpm -ivh rpmforge-release-0.5.2-1.el6.rf.x86_64.rpm 
	
	you’ll get a warning, but it will proceed based on the flags that you set. warning: rpmforge-release-0.5.2-1.el6.rf.x86_64.rpm : Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY 
	Preparing... ########################################### [100%] 
	1:rpmforge-release ########################################### [100%] 
	
	接下来最最重要的就是设置优先级了: 
	
	Now you need to edit /etc/yum.repos.d/CentOS-Base.repo and add these priorities to the bottoms of each of the following repo sections: 
代码如下:
[base]
priority=1
[updates]
priority=1
[extras]
priority=1
	
	
	Save your changes on this file and edit the rpmforge.repo file. You’ll only need to edit the one repository section. 
	
	
	[rpmforge] 
	priority=5 
	
	Save your changes and you’re finished. 
	
	-----------开始更新浏览器版本至firefox18------------- 
	参考文章:http://www.if-not-true-then-false.com/2011/install-firefox-on-fedora-centos-red-hat-rhel/ 
	
	备份下先: 
	
	tar -cvzf $HOME/mozilla-firefox-profiles-backup.tar.gz $HOME/.mozilla/firefox/ 
	
	su - 
	
	## Remi Dependency on CentOS 6 and Red Hat (RHEL) 6 ## 
	rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm 
	## CentOS 6 and Red Hat (RHEL) 6 ## 
	rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm 
	
	检查有用的版本: 
	
	yum --enablerepo=remi list firefox 
	
	# 更新或者安装 Mozilla Firefox 18/10 
	yum --enablerepo=remi update firefox 
	
	# 启动 Firefox 18/10 
	firefox 
	
	firefox安装那个flash插件: 
	
	去adobe的官网上去下载,选择tar.gz包,解压,得到libflashplayer.so, 把这个文件复制到 /home/username/.mozilla/plugins目录下,重启firefox就行了。要注意的是,libflashplayer.so必须属于指定普通用户。 
	
	-------------install google chrome 24------------ 
	
	sudo vim /etc/yum.repos.d/CentOS-Base.repo 
代码如下:
[google64]
name=Google – x86_64
baseurl=http://dl.google.com/linux/rpm/stable/x86_64
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub
	
	
	安装稳定版本:sudo yum install google-chrome-stable
