yum全攻略
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本文出自 “yangming.com” 博客,请务必保留此出处http://ming228.blog.51cto.com/421298/117655
软体包来源
可供Yum下载的软体包包括fedora 本身的软体包以及源自rpm.livna.org的Fedora Extras,全部是由Linux社区维护的,并且基本是自由软体。所有的包都有一个独立的GPG签名,主要是为了你的系统安全。而对于Fedora core 4.0 的用户,rpm.livna.org 的签名是自动导入并安装的。
图形化前端
[ ]内的是仓库的名字
name仓库的描述
baseurl 是你的YUM源地址,因为这里配置的是FTP,还可以是HTTP,FILE等
enabled 是否启用这个仓库,1为起用,0为禁用
gpgcheck 是否检查GPG签名(用来验证要安装的包是不是REDHAT官方的)
GPGKEY 的存放地址需要用下面的命令到入这个签名。才能使用这项功能
安装createrepo工具,然后用这个工具生成YUM通用数据库.
1. yum install <package> 这里是安装下载的软件包,由于本实验没有提供FTP下载.
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Local Package Process
Examining /var/ftp/pub/Server/dhcp-3.0.5-3.el5.i386.rpm: dhcp - 12:3.0.5-3.el5.i386
Examining /var/ftp/pub/Server/dhcp-devel-3.0.5-3.el5.i386.rpm: dhcp-devel - 12:3.0.5-3.el5.i386
Examining /var/ftp/pub/Server/dhcpv6-0.10-33.el5.i386.rpm: dhcpv6 - 0.10-33.el5.i386
Examining /var/ftp/pub/Server/dhcpv6_client-0.10-33.el5.i386.rpm: dhcpv6_client - 0.10-33.el5.i386
Marking /var/ftp/pub/Server/dhcp-3.0.5-3.el5.i386.rpm to be installed
Setting up repositories
Reading repository metadata in from local files
Marking /var/ftp/pub/Server/dhcp-devel-3.0.5-3.el5.i386.rpm to be installed
Setting up repositories
Reading repository metadata in from local files
Marking /var/ftp/pub/Server/dhcpv6-0.10-33.el5.i386.rpm to be installed
Setting up repositories
Reading repository metadata in from local files
Marking /var/ftp/pub/Server/dhcpv6_client-0.10-33.el5.i386.rpm to be installed
Setting up repositories
Reading repository metadata in from local files
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package dhcp.i386 12:3.0.5-3.el5 set to be updated
---> Package dhcpv6.i386 0:0.10-33.el5 set to be updated
---> Package dhcpv6_client.i386 0:0.10-33.el5 set to be updated
---> Package dhcp-devel.i386 12:3.0.5-3.el5 set to be updated
--> Running transaction check
Package Arch Version Repository Size
=============================================================================
Installing:
dhcp i386 12:3.0.5-3.el5 /var/ftp/pub/Server/dhcp-3.0.5-3.el5.i386.rpm 2.1 M
dhcp-devel i386 12:3.0.5-3.el5 /var/ftp/pub/Server/dhcp-devel-3.0.5-3.el5.i386.rpm 1.4 M
dhcpv6 i386 0.10-33.el5 /var/ftp/pub/Server/dhcpv6-0.10-33.el5.i386.rpm 759 k
dhcpv6_client i386 0.10-33.el5 /var/ftp/pub/Server/dhcpv6_client-0.10-33.el5.i386.rpm 161 k
=============================================================================
Install 4 Package(s)
Update 0 Package(s)
Remove 0 Package(s)
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing: dhcp ######################### [1/4]
Installing: dhcpv6 ######################### [2/4]
Installing: dhcpv6_client ######################### [3/4]
Installing: dhcp-devel ######################### [4/4]
Complete!
[root@rhel5 /]#
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Update Process
Setting up repositories
Reading repository metadata in from local files
No Packages marked for Update/Obsoletion
4.yum update package 更新指定程序包package
5.yum check-update
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up repositories
Reading repository metadata in from local filesck-update
6.yum info <package> 显示安装包信息
7.yum list 显示所有已经安装和可以安装的程序包
8.yum list <package> 显示指定程序包安装情况
9.yum search <keyword>查找软件包
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up repositories
Reading repository metadata in from local files
Matched from:
dhcpv6_client
DHCPv6 client
dynamic configuration of IPv6 addresses and parameters.
See man dhcp6c(8), dhcp6c.conf(5), and the documentation in
/usr/share/dhcpv6_client* .
Matched from:
dhcp-devel
Development headers and libraries for interfacing to the DHCP server
Matched from:
dhcp
A DHCP (Dynamic Host Configuration Protocol) server and relay agent.
individual devices on an IP network to get their own network
configuration information (IP address, subnetmask, broadcast address,
etc.) from a DHCP server. The overall purpose of DHCP is to make it
easier to administer a large network. The dhcp package includes the
ISC DHCP service and relay agent.
and on clients run a DHCP client daemon. The dhcp package provides
the ISC DHCP service and relay agent.
Matched from:
dhcpv6
DHCPv6 - DHCP server and client for IPv6
Internet Protocol version 6 (IPv6) networks in accordance with
RFC 3315 : Dynamic Host Configuration Protocol for IPv6 (DHCPv6).
Consists of dhcp6s(8), the server DHCP daemon, and dhcp6r(8),
the DHCPv6 relay agent.
Install this if you want to support dynamic configuration of
IPv6 addresses and parameters on your IPv6 network.
See man dhcp6s(8), dhcp6r(8), dhcp6s.conf(5),
and the documentation in /usr/share/doc/dhcpv6* .
[root@rhel5 /]#
10.yum remove | erase package1 删除程序包
[root@rhel5 /]# yum remove "dhcp*"
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Remove Process
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package dhcp.i386 12:3.0.5-3.el5 set to be erased
---> Package dhcpv6.i386 0:0.10-33.el5 set to be erased
---> Package dhcpv6_client.i386 0:0.10-33.el5 set to be erased
---> Package dhcp-devel.i386 12:3.0.5-3.el5 set to be erased
--> Running transaction check
Package Arch Version Repository Size
=============================================================================
Removing:
dhcp i386 12:3.0.5-3.el5 installed 2.1 M
dhcp-devel i386 12:3.0.5-3.el5 installed 1.4 M
dhcpv6 i386 0.10-33.el5 installed 759 k
dhcpv6_client i386 0.10-33.el5 installed 161 k
=============================================================================
Install 0 Package(s)
Update 0 Package(s)
Remove 4 Package(s)
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Removing : dhcp ######################### [1/4]
Removing : dhcpv6 ######################### [2/4]
Removing : dhcpv6_client ######################### [3/4]
Removing : dhcp-devel ######################### [4/4]
Complete!
[root@rhel5 /]#
yum 会把下载的软件包和header存储在cache中,而不会自动删除。如果觉得它们占用了磁盘空间,可以使用yum clean指令进行清除.
yum clean headers清除header
yum clean packages清除下载的rpm包
yum clean all 清除header与rpm包
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