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系統(tǒng)：Centos 6.9
MySQL 版本：MySQL 5.7
由于本人以前買(mǎi)了個(gè) Centos 6.9 國(guó)外服務(wù)器玩并安裝了mysql启具；后來(lái)因?yàn)槊λ跃桶逊?wù)器擱置了筹吐，最近閑下來(lái)又開(kāi)始搗鼓起來(lái)学密。
最開(kāi)始忘記 mysql 的配置信息爽航，所以想要更新下 mysql；按照網(wǎng)上的方式使用萌腿；但是再輸入如下指令的
yum install mysql-community-server
結(jié)果報(bào)如下錯(cuò)誤：
[root@host ~]# yum install mysql-community-server
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirror.san.fastserv.com
* elrepo-kernel: repos.lax-noc.com
* extras: mirrors.oit.uci.edu
* updates: mirror.keystealth.org
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: mysql-community-common(x86-64) = 5.7.20-1.el7 for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libstdc++.so.6(GLIBCXX_3.4.15)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libnuma.so.1(libnuma_1.2)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libnuma.so.1(libnuma_1.1)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libc.so.6(GLIBC_2.17)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libsasl2.so.3()(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libnuma.so.1()(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysql-community-client-5.7.20-1.el7.x86_64
--> Processing Dependency: libstdc++.so.6(GLIBCXX_3.4.15)(64bit) for package: mysql-community-client-5.7.20-1.el7.x86_64
--> Processing Dependency: libc.so.6(GLIBC_2.14)(64bit) for package: mysql-community-client-5.7.20-1.el7.x86_64
---> Package mysql-community-common.x86_64 0:5.7.20-1.el7 will be installed
---> Package mysql-community-server.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libstdc++.so.6(GLIBCXX_3.4.15)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libc.so.6(GLIBC_2.17)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libsasl2.so.3()(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
---> Package numactl.x86_64 0:2.0.9-2.el6 will be installed
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: libstdc++.so.6(GLIBCXX_3.4.15)(64bit) for package: mysql-community-client-5.7.20-1.el7.x86_64
--> Processing Dependency: libc.so.6(GLIBC_2.14)(64bit) for package: mysql-community-client-5.7.20-1.el7.x86_64
---> Package mysql-community-libs.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: libc.so.6(GLIBC_2.14)(64bit) for package: mysql-community-libs-5.7.20-1.el7.x86_64
---> Package mysql-community-server.x86_64 0:5.7.20-1.el7 will be installed
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: systemd for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libstdc++.so.6(GLIBCXX_3.4.15)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libc.so.6(GLIBC_2.17)(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Processing Dependency: libsasl2.so.3()(64bit) for package: mysql-community-server-5.7.20-1.el7.x86_64
--> Finished Dependency Resolution
Error: Package: mysql-community-server-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libsasl2.so.3()(64bit)
Error: Package: mysql-community-client-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libstdc++.so.6(GLIBCXX_3.4.15)(64bit)
Error: Package: mysql-community-libs-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libc.so.6(GLIBC_2.14)(64bit)
Error: Package: mysql-community-server-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: systemd
Error: Package: mysql-community-server-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libstdc++.so.6(GLIBCXX_3.4.15)(64bit)
Error: Package: mysql-community-client-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libc.so.6(GLIBC_2.14)(64bit)
Error: Package: mysql-community-server-5.7.20-1.el7.x86_64 (mysql57-community)
Requires: libc.so.6(GLIBC_2.17)(64bit)
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
查詢各種信息限匣；基本確定是因?yàn)?mysql 的依賴問(wèn)題；由于對(duì)本來(lái)說(shuō)毁菱，最快的解決方案就是卸載重裝.
卸載方法：
1.快速刪除
yum remove mysql mysql-server mysql-libs mysql-server
2.查找殘留文件
rpm -qa | grep -i mysql
- 將查詢出來(lái)的文件逐個(gè)刪除米死，如：
yum remove mysql-community-common-5.7.20-1.el6.x86_64
4.查找殘留目錄
whereis mysql
- 逐條刪除目錄，如：
rm –rf /usr/lib64/mysql
上述做完后贮庞，最好重新查詢相關(guān)內(nèi)容峦筒，防止漏刪
安裝：
轉(zhuǎn)自https://segmentfault.com/a/1190000003049498
- 檢測(cè)系統(tǒng)是否存在mysql
yum list installed | grep mysql
- 刪除mysql依賴項(xiàng)
yum -y remove mysql-libs.x86_64
3.給CentOS添加rpm源，并且選擇較新的源
wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
yum localinstall mysql-community-release-el6-5.noarch.rpm
yum repolist all | grep mysql
yum-config-manager --disable mysql55-community
yum-config-manager --disable mysql56-community
yum-config-manager --enable mysql57-community-dmr
yum repolist enabled | grep mysql
- 安裝mysql 服務(wù)器
# yum install mysql-community-server
終于沒(méi)有報(bào)錯(cuò)窗慎，可以繼續(xù)了
