CentOS7安裝MySQL衝突和問題解決小結
問題1：
[root@localhost install-files]# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm
Preparing… ################################# [100%]
file /usr/share/mysql/charsets/README from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/czech/errmsg.sys from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64 file /usr/share/mysql/charsets/macce.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts
with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64 file /usr/share/mysql/charsets/macroman.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/charsets/swe7.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
……………………
Preparing… ################################# [100%]
file /usr/share/mysql/charsets/README from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/czech/errmsg.sys from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64 file /usr/share/mysql/charsets/macce.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts
with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64 file /usr/share/mysql/charsets/macroman.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
file /usr/share/mysql/charsets/swe7.xml from install of MySQL-server-5.6.27-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.41-2.el7_0.x86_64
……………………
解決1:
出現以上安裝錯誤列表的原因是：系統已經安裝了其他版本的mysql-libs包和mysql資料庫檔案導致不相容。
[root@localhost install-files]# yum remove mysql-libs
執行之後，還要詳細檢查解除安裝MySQL安裝的所有檔案，否則在後續安裝發生各種錯誤:CentOS下MySQL的徹底解除安裝
問題2：
[root@Tony_ts_tian developer]# rpm -ivh MySQL-server-5.5.46-1.el6.x86_64.rpm
warning: MySQL-server-5.5.46-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing… ########################################### [100%]
1:MySQL-server ########################################### [100%]
warning: MySQL-server-5.5.46-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing… ########################################### [100%]
1:MySQL-server ########################################### [100%]
解決2：
從 rpm版本 4.1 開始，在安裝或升級軟體包時會檢查軟體包的簽名。如果簽名校驗失敗，你就會看到類似以上的錯誤訊息：
注：新的、只針對檔案頭的簽名：錯誤訊息：error: Header V3 DSA signature: BAD, key ID 0352860f
注：沒有安裝合適的鑰匙來校驗簽名，訊息中就會包含 NOKEY：錯誤訊息：warning: V3 DSA signature: NOKEY, key ID 0352860f
由於yum安裝了舊版本的GPG keys造成的，解決辦法就是（設定後無效）：
rpm --import /etc/pki/rpm-gpg/RPM*
此簽名是檢驗安裝包的有效性和安裝性的。我直接跳過（安裝時不校驗，加–nosignature引數）檢驗安裝:
[root@localhost install-files]# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm --nosignature
問題3：
mysqld: unrecognized service
[root@Tony_ts_tian init.d]# service mysqld start mysqld: unrecognized service
解決3：
啟動指令碼檔案mysql的目錄
[root@localhost install-files]# cd /etc/rc.d/init.d/ [root@localhost init.d]# ls functions mysql netconsole network README
並沒有mysqld：
[root@Tony_ts_tian init.d]# service mysql start
啟動成功：
也可以:
[root@Tony_ts_tian init.d]# mv mysql mysqld [root@Tony_ts_tian init.d]# service mysqld start
問題4：
[root@localhost install-files]# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm –nosignature
Preparing… ################################# [100%]
Updating / installing…
1:MySQL-server-5.6.27-1.el6 ################################# [100%]
warning: user mysql does not exist – using root
warning: group mysql does not exist – using root
FATAL ERROR: please install the following Perl modules before executing /usr/bin/mysql_install_db:
Data::Dumper
Preparing… ################################# [100%]
Updating / installing…
1:MySQL-server-5.6.27-1.el6 ################################# [100%]
warning: user mysql does not exist – using root
warning: group mysql does not exist – using root
FATAL ERROR: please install the following Perl modules before executing /usr/bin/mysql_install_db:
Data::Dumper
解決4：
[root@localhost install-files]# yum install -y perl-Module-Install.noarch
問題5：
[root@localhost mysql]# service mysql start
Starting MySQL… ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
Starting MySQL… ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
[root@localhost init.d]# cd /var/lib/mysql/ [root@localhost mysql]# ll total 110620 -rw-rw----. 1 mysql mysql 56 Oct 11 23:20 auto.cnf -rw-rw----. 1 mysql mysql 12582912 Oct 11 23:20 ibdata1 -rw-rw----. 1 mysql mysql 50331648 Oct 11 23:20 ib_logfile0 -rw-rw----. 1 mysql mysql 50331648 Oct 11 23:19 ib_logfile1 -rw-r-----. 1 mysql root 5847 Oct 11 23:20 localhost.localdomain.err drwx--x--x. 2 mysql mysql 4096 Oct 11 23:19 mysql drwx------. 2 mysql mysql 4096 Oct 11 23:19 performance_schema -rw-r--r--. 1 root root 111 Oct 11 23:19 RPM_UPGRADE_HISTORY -rw-r--r--. 1 mysql mysql 111 Oct 11 23:19 RPM_UPGRADE_MARKER-LAST drwxr-xr-x. 2 mysql mysql 6 Oct 11 23:19 test
檢視路徑：mysql-bin.index多餘檔案，auto.cnf和performance_schema等不存在（檔案不全）。（以上為成功後的mysql資料庫目錄）
解決5：
因為以前存在的MySQL解除安裝不乾淨導致。
刪除和解除安裝（以下是的解決），然後重新安裝：CentOS下MySQL的徹底解除安裝
[root@localhost mysql]# rpm -aq | grep -i mysql MySQL-server-5.6.27-1.el6.x86_64 MySQL-client-5.6.27-1.el6.x86_64 MySQL-devel-5.6.27-1.el6.x86_64 [root@localhost mysql]# rpm -e MySQL-server-5.6.27-1.el6.x86_64 [root@localhost mysql]# rpm -e MySQL-client-5.6.27-1.el6.x86_64 [root@localhost mysql]# rpm -e MySQL-devel-5.6.27-1.el6.x86_64 [root@localhost rc.d]# cd /var/lib/ [root@localhost lib]# rm -rf mysql/ [root@localhost install-files]# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm --nosignature Preparing... ################################# [100%] Updating / installing... 1:MySQL-server-5.6.27-1.el6 ################################# [100%] 2015-10-11 23:19:40 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2015-10-11 23:19:40 0 [Note] /usr/sbin/mysqld (mysqld 5.6.27) starting as process 3168 ... 2015-10-11 23:19:40 3168 [Note] InnoDB: Using atomics to ref count buffer pool pages 2015-10-11 23:19:40 3168 [Note] InnoDB: The InnoDB memory heap is disabled 2015-10-11 23:19:40 3168 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2015-10-11 23:19:40 3168 [Note] InnoDB: Memory barrier is not used 2015-10-11 23:19:40 3168 [Note] InnoDB: Compressed tables use zlib 1.2.3 2015-10-11 23:19:40 3168 [Note] InnoDB: Using Linux native AIO 2015-10-11 23:19:40 3168 [Note] InnoDB: Using CPU crc32 instructions 2015-10-11 23:19:40 3168 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2015-10-11 23:19:40 3168 [Note] InnoDB: Completed initialization of buffer pool 2015-10-11 23:19:40 3168 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created! 2015-10-11 23:19:40 3168 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB 2015-10-11 23:19:40 3168 [Note] InnoDB: Database physically writes the file full: wait... 2015-10-11 23:19:40 3168 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB 2015-10-11 23:19:41 3168 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB 2015-10-11 23:19:43 3168 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0 2015-10-11 23:19:43 3168 [Warning] InnoDB: New log files created, LSN=45781 2015-10-11 23:19:43 3168 [Note] InnoDB: Doublewrite buffer not found: creating new 2015-10-11 23:19:43 3168 [Note] InnoDB: Doublewrite buffer created 2015-10-11 23:19:43 3168 [Note] InnoDB: 128 rollback segment(s) are active. 2015-10-11 23:19:43 3168 [Warning] InnoDB: Creating foreign key constraint system tables. 2015-10-11 23:19:43 3168 [Note] InnoDB: Foreign key constraint system tables created 2015-10-11 23:19:43 3168 [Note] InnoDB: Creating tablespace and datafile system tables. 2015-10-11 23:19:43 3168 [Note] InnoDB: Tablespace and datafile system tables created. 2015-10-11 23:19:43 3168 [Note] InnoDB: Waiting for purge to start 2015-10-11 23:19:43 3168 [Note] InnoDB: 5.6.27 started; log sequence number 0 A random root password has been set. You will find it in `/root/.mysql_secret`. 2015-10-11 23:19:44 3168 [Note] Binlog end 2015-10-11 23:19:44 3168 [Note] InnoDB: FTS optimize thread exiting. 2015-10-11 23:19:44 3168 [Note] InnoDB: Starting shutdown... 2015-10-11 23:19:46 3168 [Note] InnoDB: Shutdown completed; log sequence number 1625977 2015-10-11 23:19:46 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2015-10-11 23:19:46 0 [Note] /usr/sbin/mysqld (mysqld 5.6.27) starting as process 3190 ... 2015-10-11 23:19:46 3190 [Note] InnoDB: Using atomics to ref count buffer pool pages 2015-10-11 23:19:46 3190 [Note] InnoDB: The InnoDB memory heap is disabled 2015-10-11 23:19:46 3190 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2015-10-11 23:19:46 3190 [Note] InnoDB: Memory barrier is not used 2015-10-11 23:19:46 3190 [Note] InnoDB: Compressed tables use zlib 1.2.3 2015-10-11 23:19:46 3190 [Note] InnoDB: Using Linux native AIO 2015-10-11 23:19:46 3190 [Note] InnoDB: Using CPU crc32 instructions 2015-10-11 23:19:46 3190 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2015-10-11 23:19:46 3190 [Note] InnoDB: Completed initialization of buffer pool 2015-10-11 23:19:46 3190 [Note] InnoDB: Highest supported file format is Barracuda. 2015-10-11 23:19:46 3190 [Note] InnoDB: 128 rollback segment(s) are active. 2015-10-11 23:19:46 3190 [Note] InnoDB: Waiting for purge to start 2015-10-11 23:19:46 3190 [Note] InnoDB: 5.6.27 started; log sequence number 1625977 2015-10-11 23:19:46 3190 [Note] Binlog end 2015-10-11 23:19:46 3190 [Note] InnoDB: FTS optimize thread exiting. 2015-10-11 23:19:46 3190 [Note] InnoDB: Starting shutdown... 2015-10-11 23:19:49 3190 [Note] InnoDB: Shutdown completed; log sequence number 1625987 A RANDOM PASSWORD HAS BEEN SET FOR THE MySQL root USER ! You will find that password in `/root/.mysql_secret`. You must change that password on your first connect, no other statement but `SET PASSWORD` will be accepted. See the manual for the semantics of the `password expired` flag. Also, the account for the anonymous user has been removed. In addition, you can run: /usr/bin/mysql_secure_installation which will also give you the option of removing the test database. This is strongly recommended for production servers. See the manual for more instructions. Please report any problems at http://bugs.mysql.com/ The latest information about MySQL is available on the web at http://www.mysql.com Support MySQL by buying support/licenses at http://shop.mysql.com New default config file was created as /usr/my.cnf and will be used by default by the server when you start it. You may edit this file to change server settings
檢查：
[root@localhost install-files]# service mysql start Starting MySQL.. SUCCESS! [root@localhost install-files]# service mysql stop Shutting down MySQL.. SUCCESS! [root@localhost mysql]# ll total 110620 -rw-rw----. 1 mysql mysql 56 Oct 11 23:20 auto.cnf -rw-rw----. 1 mysql mysql 12582912 Oct 11 23:20 ibdata1 -rw-rw----. 1 mysql mysql 50331648 Oct 11 23:20 ib_logfile0 -rw-rw----. 1 mysql mysql 50331648 Oct 11 23:19 ib_logfile1 -rw-r-----. 1 mysql root 5847 Oct 11 23:20 localhost.localdomain.err drwx--x--x. 2 mysql mysql 4096 Oct 11 23:19 mysql drwx------. 2 mysql mysql 4096 Oct 11 23:19 performance_schema -rw-r--r--. 1 root root 111 Oct 11 23:19 RPM_UPGRADE_HISTORY -rw-r--r--. 1 mysql mysql 111 Oct 11 23:19 RPM_UPGRADE_MARKER-LAST drwxr-xr-x. 2 mysql mysql 6 Oct 11 23:19 test
設定後，也可以:mysql -u root -p;進行登入測試。
成功的安裝，日誌中顯示（建立兩個檔案）：
A random root password has been set. You will find it in `/root/.mysql_secret`.
New default config file was created as /usr/my.cnf andwill be used by default by the server when you start it.
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