閑來無事倒騰一下買了半年什么什么東西都沒搞的騰訊雲，首先一個空空的服務器自己安裝那些個玩意是真的累呀，於是准備使用yum，這是一篇簡易安裝yum的簡易教程
1.首先下載yum的壓縮包（下面的包不一定是最新的最新的包去http://yum.baseurl.org/download/自己找哦）
下載
wget http://yum.baseurl.org/download/3.2/yum-3.2.28.tar.gz
解壓
tar xvf yum-3.2.28.tar.gz（這樣解壓后的文件會在root中）
2.運行安裝
首先在etc中創建yum而配置文件一yum.conf
touch /etc/yum.conf
進入yum的解壓目錄我的就在root里面（如果不知道文件被解壓到哪里了用find -name去找）
cd /root/yum-3.2.28
運行下面的語句
./yummain.py install yum
3.其他問題（報錯）：
報錯1： [root@akinlau yum-3.4.3]# ./yummain.py Traceback (most recent call last): File “./yummain.py”, line 28, in <module> from yum import Errors File “/root/nagios/yum-3.4.3/yum/__init__.py”, line 52, in <module> import config File “/root/nagios/yum-3.4.3/yum/config.py”, line 30, in <module> from parser import ConfigPreProcessor, varReplace File “/root/nagios/yum-3.4.3/yum/parser.py”, line 4, in <module> import urlgrabber ImportError: No module named urlgrabber
報錯2： [root@akinlau yum-3.4.3]# ./yummain.py Traceback (most recent call last): File “./yummain.py”, line 28, in <module> from yum import Errors File “/root/nagios/yum-3.4.3/yum/__init__.py”, line 55, in <module> import rpmsack File “/root/nagios/yum-3.4.3/yum/rpmsack.py”, line 38, in <module> import yum.depsolve File “/root/nagios/yum-3.4.3/yum/depsolve.py”, line 30, in <module> from transactioninfo import TransactionMember File “/root/nagios/yum-3.4.3/yum/transactioninfo.py”, line 32, in <module> from sqlitesack import YumAvailablePackageSqlite File “/root/nagios/yum-3.4.3/yum/sqlitesack.py”, line 26, in <module> import yumRepo File “/root/nagios/yum-3.4.3/yum/yumRepo.py”, line 33, in <module> import sqlitecachec ImportError: No module named sqlitecachec
如果報錯如上在：http://rpm.pbone.net/ 中找到自己的系統版本，下載python-urlgrabber，python-pycurl，yum-metadata-parser這3個包
例如：
首先找到python-pycurl對應包
運行wget http://rpmfind.net/linux/centos/7.5.1804/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpm
在etc中運行 rpm -ivh python-pycurl-7.19.0-19.el7.x86_64.rpm
其他兩個包重復如上步驟
最后yum安裝完成~