阿里云Centos下安装mysql找不到mysql-sever安装包的解决方案

解决方案

• 采用yum源安装，yum install mysql mysql-sever mysql-client很多教程上都这么写，实际上也是对的，对于大多数centos系统默认源来讲，确实如此。
• 但是在阿里云服务器上，默认是阿里云自己配置的yum源 ，所以上述方法就会出问题，因为人家的yum源里面根本就没有这些东西。可能是包名改了吧，反正不是我们熟悉的那些。
• 所以可以使用wget命令从官网上直接下载，就有了这么一种方法。
  
  • wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
• 从官网上下载后会发现本地路径已经有了rpm包。这时候利用rpm命令将rpm包导入到yum源里面去
  
  • rpm -ivh mysql-community-release-el7-5.noarch.rpm
• 然后利yum install mysql-community-server.x86_64命令安装
• 一路狂奔，安装好后使用mysql，还是不可以，因为mysqld服务没有开启。这时候使用service mysqld start然后安装结束，mysql正常开启。
• 使用mysql直接进入数据库里面，但是这样一来不是都可以进去了？，这时候我们要做的就是加buff保护，也就是给数据库设密码。
  
  • mysqladmin -u root -p password 你的密码
• 完成后，若已经设置了密码，需要输入原密码修改，若未设置密码，那么上一步完成后就修改完成
• 登录的时候也不能使用mysql进入了，估计也进不去，因为有暗号了，哈哈哈
• 这个时候使用mysql -u root/你的密码就可以进去了。到此安装就说完了。

对于rpm命令

• 若是不熟悉可以使用man命令查看说明
  在此我把rpm的说明贴出来，来说明其作用

RPM(8)                                                            System Manager's Manual                                                            RPM(8)NAME       rpm - RPM Package ManagerSYNOPSIS   QUERYING AND VERIFYING PACKAGES:       rpm {-q|--query} [select-options] [query-options]       rpm {-V|--verify} [select-options] [verify-options]   INSTALLING, UPGRADING, AND REMOVING PACKAGES:       rpm {-i|--install} [install-options] PACKAGE_FILE ...       rpm {-U|--upgrade} [install-options] PACKAGE_FILE ...       rpm {-F|--freshen} [install-options] PACKAGE_FILE ...       rpm {-e|--erase} [--allmatches] [--nodeps] [--noscripts]           [--notriggers] [--test] PACKAGE_NAME ...   MISCELLANEOUS:       rpm {--querytags|--showrc}       rpm {--setperms|--setugids} PACKAGE_NAME ...   select-options        [PACKAGE_NAME] [-a,--all] [-f,--file FILE]        [-g,--group GROUP] {-p,--package PACKAGE_FILE]        [--hdrid SHA1] [--pkgid MD5] [--tid TID]        [--querybynumber HDRNUM] [--triggeredby PACKAGE_NAME]        [--whatprovides CAPABILITY] [--whatrequires CAPABILITY]   query-options        [--changelog] [-c,--configfiles] [--conflicts]        [-d,--docfiles] [--dump] [--filesbypkg] [-i,--info]        [--last] [-l,--list] [--obsoletes] [--provides]        [--qf,--queryformat QUERYFMT] [-R,--requires]        [--scripts] [-s,--state] [--triggers,--triggerscripts]   verify-options        [--nodeps] [--nofiles] [--noscripts]        [--nodigest] [--nosignature]        [--nolinkto] [--nofiledigest] [--nosize] [--nouser]        [--nogroup] [--nomtime] [--nomode] [--nordev]        [--nocaps]   install-options        [--allfiles] [--badreloc] [--excludepath OLDPATH]        [--excludedocs] [--force] [-h,--hash]        [--ignoresize] [--ignorearch] [--ignoreos]        [--includedocs] [--justdb] [--nocollections]        [--nodeps] [--nodigest] [--nosignature]        [--noorder] [--noscripts] [--notriggers]        [--oldpackage] [--percent] [--prefix NEWPATH]        [--relocate OLDPATH=NEWPATH]        [--replacefiles] [--replacepkgs]        [--test]DESCRIPTION       rpm  is  a  powerful Package Manager, which can be used to build, install, query, verify, update, and erase individual software packages.  A package       consists of an archive of files and meta-data used to install and erase the archive files. The meta-data includes helper scripts,  file  attributes,       and  descriptive  information about the package.  Packages come in two varieties: binary packages, used to encapsulate software to be installed, and       source packages, containing the source code and recipe necessary to produce binary packages.       One of the following basic modes must be selected: Query, Verify, Install/Upgrade/Freshen, Uninstall, Set Owners/Groups, Show  Querytags,  and  Show       Configuration.   GENERAL OPTIONS       These options can be used in all the different modes.       -?, --help              Print a longer usage message then normal.       --version              Print a single line containing the version number of rpm being used.       --quiet              Print as little as possible - normally only error messages will be displayed.       -v     Print verbose information - normally routine progress messages will be displayed.       -vv    Print lots of ugly debugging information.       --rcfile FILELIST              Each of the files in the colon separated FILELIST is read sequentially by rpm for configuration information.  Only the first file in the list              must  exist,  and  tildes  will  be  expanded  to  the  value  of  $HOME.   The  default  FILELIST  is   /usr/lib/rpm/rpmrc:/usr/lib/rpm/red‐              hat/rpmrc:/etc/rpmrc:~/.rpmrc.       --pipe CMD              Pipes the output of rpm to the command CMD.       --dbpath DIRECTORY              Use the database in DIRECTORY rather than the default path /var/lib/rpm       --root DIRECTORY              Use  the file system tree rooted at DIRECTORY for all operations.  Note that this means the database within DIRECTORY will be used for depen‐              dency checks and any scriptlet(s) (e.g.  %post if installing, or %prep if building, a package) will be run after a chroot(2) to DIRECTORY.       -D, --define='MACRO EXPR'              Defines MACRO with value EXPR.       --undefine='MACRO'              Undefines MACRO.       -E, --eval='EXPR'              Prints macro expansion of EXPR.   INSTALL AND UPGRADE OPTIONS       In these options, PACKAGE_FILE can be either rpm binary file or ASCII package manifest (see PACKAGE SELECTION OPTIONS), and may be specified  as  an       ftp or http URL, in which case the package will be downloaded before being installed. See FTP/HTTP OPTIONS for information on rpm's internal ftp and       http client support.       The general form of an rpm install command is       rpm {-i|--install} [install-options] PACKAGE_FILE ...       This installs a new package.       The general form of an rpm upgrade command is       rpm {-U|--upgrade} [install-options] PACKAGE_FILE ...       This upgrades or installs the package currently installed to a newer version.  This is the same as install, except all other version(s) of the pack‐       age are removed after the new package is installed.       rpm {-F|--freshen} [install-options] PACKAGE_FILE ...       This will upgrade packages, but only ones for which an earlier version is installed.       --allfiles              Installs or upgrades all the missingok files in the package, regardless if they exist.       --badreloc              Used with --relocate, permit relocations on all file paths, not just those OLDPATH's included in the binary package relocation hint(s).       --excludepath OLDPATH              Don't install files whose name begins with OLDPATH.       --excludedocs              Don't install any files which are marked as documentation (which includes man pages and texinfo documents).       --force              Same as using --replacepkgs, --replacefiles, and --oldpackage.       -h, --hash              Print 50 hash marks as the package archive is unpacked.  Use with -v|--verbose for a nicer display.       --ignoresize              Don't check mount file systems for sufficient disk space before installing this package.       --ignorearch              Allow installation or upgrading even if the architectures of the binary package and host don't match.       --ignoreos              Allow installation or upgrading even if the operating systems of the binary package and host don't match.       --includedocs              Install documentation files. This is the default behavior.       --justdb              Update only the database, not the filesystem.       --nodigest              Don't verify package or header digests when reading.       --nomanifest              Don't process non-package files as manifests.       --nosignature              Don't verify package or header signatures when reading.       --nodeps              Don't do a dependency check before installing or upgrading a package.       --noorder              Don't reorder the packages for an install. The list of packages would normally be reordered to satisfy dependencies.       --noscripts       --nopre       --nopost       --nopreun       --nopostun              Don't execute the scriptlet of the same name.  The --noscripts option is equivalent to              --nopre --nopost --nopreun --nopostun              and turns off the execution of the corresponding %pre, %post, %preun, and %postun scriptlet(s).       --notriggers       --notriggerin       --notriggerun       --notriggerprein       --notriggerpostun              Don't execute any trigger scriptlet of the named type.  The --notriggers option is equivalent to              --notriggerprein --notriggerin --notriggerun --notriggerpostun              and turns off execution of the corresponding %triggerprein, %triggerin, %triggerun, and %triggerpostun scriptlet(s).       --oldpackage              Allow an upgrade to replace a newer package with an older one.       --percent              Print percentages as files are unpacked from the package archive.  This is intended to make rpm easy to run from other tools.       --prefix NEWPATH              For  relocatable  binary packages, translate all file paths that start with the installation prefix in the package relocation hint(s) to NEW‐              PATH.       --relocate OLDPATH=NEWPATH              For relocatable binary packages, translate all file paths that start with OLDPATH in the package relocation hint(s) to NEWPATH.  This  option              can be used repeatedly if several OLDPATH's in the package are to be relocated.       --replacefiles              Install the packages even if they replace files from other, already installed, packages.       --replacepkgs              Install the packages even if some of them are already installed on this system.       --test Do not install the package, simply check for and report potential conflicts.   ERASE OPTIONS       The general form of an rpm erase command is       rpm {-e|--erase} [--allmatches] [--nodeps] [--noscripts] [--notriggers] [--test] PACKAGE_NAME ...       The following options may also be used:       --allmatches              Remove all versions of the package which match PACKAGE_NAME. Normally an error is issued if PACKAGE_NAME matches multiple packages.       --nodeps              Don't check dependencies before uninstalling the packages.       --noscripts       --nopreun       --nopostun              Don't execute the scriptlet of the same name.  The --noscripts option during package erase is equivalent to              --nopreun --nopostun              and turns off the execution of the corresponding %preun, and %postun scriptlet(s).       --notriggers       --notriggerun       --notriggerpostun              Don't execute any trigger scriptlet of the named type.  The --notriggers option is equivalent to              --notriggerun --notriggerpostun              and turns off execution of the corresponding %triggerun, and %triggerpostun scriptlet(s).       --test Don't really uninstall anything, just go through the motions.  Useful in conjunction with the -vv option for debugging.   QUERY OPTIONS       The general form of an rpm query command is       rpm {-q|--query} [select-options] [query-options]       You may specify the format that package information should be printed in. To do this, you use the        --qf|--queryformat QUERYFMT       option,  followed by the QUERYFMT format string.  Query formats are modified versions of the standard printf(3) formatting. The format is made up of       static strings (which may include standard C character escapes for newlines, tabs, and other special characters) and printf(3) type formatters.   As       rpm  already knows the type to print, the type specifier must be omitted however, and replaced by the name of the header tag to be printed, enclosed       by {} characters. Tag names are case insensitive, and the leading RPMTAG_ portion of the tag name may be omitted as well.       Alternate output formats may be requested by following the tag with :typetag.  Currently, the following types are supported:       :armor Wrap a public key in ASCII armor.       :arraysize              Display number of elements in array tags.       :base64              Encode binary data using base64.       :date  Use strftime(3) "%c" format.       :day   Use strftime(3) "%a %b %d %Y" format.       :depflags              Format dependency comparison operator.       :deptype              Format dependency type.       :expand              Perform macro expansion.       :fflags              Format file flags.       :fstate              Format file state.       :fstatus              Format file verify status.       :hex   Format in hexadecimal.       :octal Format in octal.       :perms Format file permissions.       :pgpsig              Display signature fingerprint and time.       :shescape              Escape single quotes for use in a script.       :triggertype              Display trigger suffix.       :vflags              File verification flags.       :xml   Wrap data in simple xml markup.       For example, to print only the names of the packages queried, you could use %{NAME} as the format string.  To print the packages name and  distribu‐       tion  information  in  two  columns,  you  could  use %-30{NAME}%{DISTRIBUTION}.  rpm will print a list of all of the tags it knows about when it is       invoked with the --querytags argument.       There are two subsets of options for querying: package selection, and information selection.   PACKAGE SELECTION OPTIONS:       PACKAGE_NAME              Query installed package named PACKAGE_NAME.       -a, --all              Query all installed packages.       -f, --file FILE              Query package owning FILE.       -g, --group GROUP              Query packages with the group of GROUP.       --hdrid SHA1              Query package that contains a given header identifier, i.e. the SHA1 digest of the immutable header region.       -p, --package PACKAGE_FILE              Query an (uninstalled) package PACKAGE_FILE.  The PACKAGE_FILE may be specified as an ftp or http style URL, in which case the package header              will  be  downloaded and queried.  See FTP/HTTP OPTIONS for information on rpm's internal ftp and http client support. The PACKAGE_FILE argu‐              ment(s), if not a binary package, will be interpreted as an ASCII package manifest unless --nomanifest option is used.   In  manifests,  com‐              ments  are  permitted,  starting  with  a  '#',  and each line of a package manifest file may include white space separated glob expressions,              including URL's, that will be expanded to paths that are substituted in place of the package manifest as additional PACKAGE_FILE arguments to              the query.       --pkgid MD5              Query package that contains a given package identifier, i.e. the MD5 digest of the combined header and payload contents.       --querybynumber HDRNUM              Query the HDRNUMth database entry directly; this is useful only for debugging.       --specfile SPECFILE              Parse and query SPECFILE as if it were a package. Although not all the information (e.g. file lists) is available, this type of query permits              rpm to be used to extract information from spec files without having to write a specfile parser.       --tid TID              Query package(s) that have a given TID transaction identifier. A unix time stamp is currently used as a  transaction  identifier.  All  pack‐              age(s) installed or erased within a single transaction have a common identifier.       --triggeredby PACKAGE_NAME              Query packages that are triggered by package(s) PACKAGE_NAME.       --whatprovides CAPABILITY              Query all packages that provide the CAPABILITY capability.       --whatrequires CAPABILITY              Query all packages that require CAPABILITY for proper functioning.   PACKAGE QUERY OPTIONS:       --changelog              Display change information for the package.       -c, --configfiles              List only configuration files (implies -l).       --conflicts              List capabilities this package conflicts with.       -d, --docfiles              List only documentation files (implies -l).       --dump Dump file information as follows (implies -l):              path size mtime digest mode owner group isconfig isdoc rdev symlink       --filesbypkg              List all the files in each selected package.       -i, --info              Display package information, including name, version, and description.  This uses the --queryformat if one was specified.       --last Orders the package listing by install time such that the latest packages are at the top.       -L, --licensefiles              List only license files (implies -l).       -l, --list              List files in package.       --obsoletes              List packages this package obsoletes.       --provides              List capabilities this package provides.       -R, --requires              List capabilities on which this package depends.       --scripts              List the package specific scriptlet(s) that are used as part of the installation and uninstallation processes.       -s, --state              Display the states of files in the package (implies -l).  The state of each file is one of normal, not installed, or replaced.       --triggers, --triggerscripts              Display the trigger scripts, if any, which are contained in the package.   VERIFY OPTIONS       The general form of an rpm verify command is       rpm {-V|--verify} [select-options] [verify-options]       Verifying  a  package compares information about the installed files in the package with information about the files taken from the package metadata       stored in the rpm database.  Among other things, verifying compares the size, digest, permissions, type, owner and group of each file.  Any discrep‐       ancies  are  displayed.   Files  that  were  not  installed  from  the  package, for example, documentation files excluded on installation using the       "--excludedocs" option, will be silently ignored.       The package selection options are the same as for package querying (including package manifest files as arguments).  Other options unique to  verify       mode are:       --nodeps              Don't verify dependencies of packages.       --nodigest              Don't verify package or header digests when reading.       --nofiles              Don't verify any attributes of package files.       --noscripts              Don't execute the %verifyscript scriptlet (if any).       --nosignature              Don't verify package or header signatures when reading.       --nolinkto       --nofiledigest (formerly --nomd5)       --nosize       --nouser       --nogroup       --nomtime       --nomode       --nordev              Don't verify the corresponding file attribute.       The format of the output is a string of 9 characters, a possible attribute marker:       c %config configuration file.       d %doc documentation file.       g %ghost file (i.e. the file contents are not included in the package payload).       l %license license file.       r %readme readme file.       from  the package header, followed by the file name.  Each of the 9 characters denotes the result of a comparison of attribute(s) of the file to the       value of those attribute(s) recorded in the database.  A single "." (period) means the test passed, while a single "?" (question mark) indicates the       test  could not be performed (e.g. file permissions prevent reading). Otherwise, the (mnemonically emBoldened) character denotes failure of the cor‐       responding --verify test:       S file Size differs       M Mode differs (includes permissions and file type)       5 digest (formerly MD5 sum) differs       D Device major/minor number mismatch       L readLink(2) path mismatch       U User ownership differs       G Group ownership differs       T mTime differs       P caPabilities differ   MISCELLANEOUS COMMANDS       rpm --showrc              shows the values rpm will use for all of the options are currently set in rpmrc and macros configuration file(s).       rpm --setperms PACKAGE_NAME              sets permissions of files in the given package.       rpm --setugids PACKAGE_NAME              sets user/group ownership of files in the given package.       Options --setperms and --setugids are mutually exclusive.   FTP/HTTP OPTIONS       rpm can act as an FTP and/or HTTP client so that packages can be queried or installed from the internet.  Package files for  install,  upgrade,  and       query operations may be specified as an ftp or http style URL:       ftp://USER:PASSWORD@HOST:PORT/path/to/package.rpm       If  the  :PASSWORD  portion  is omitted, the password will be prompted for (once per user/hostname pair). If both the user and password are omitted,       anonymous ftp is used.  In all cases, passive (PASV) ftp transfers are performed.       rpm allows the following options to be used with ftp URLs:       --ftpproxy HOST              The host HOST will be used as a proxy server for all ftp transfers, which allows users to ftp through firewall machines which use proxy  sys‐              tems. This option may also be specified by configuring the macro %_ftpproxy.       --ftpport PORT              The  TCP  PORT number to use for the ftp connection on the proxy ftp server instead of the default port. This option may also be specified by              configuring the macro %_ftpport.       rpm allows the following options to be used with http URLs:       --httpproxy HOST              The host HOST will be used as a proxy server for all http transfers. This option may also be specified by configuring the macro %_httpproxy.       --httpport PORT              The TCP PORT number to use for the http connection on the proxy http server instead of the default port. This option may also be specified by              configuring the macro %_httpport.LEGACY ISSUES   Executing rpmbuild       The  build  modes  of rpm are now resident in the /usr/bin/rpmbuild executable.  Install the package containing rpmbuild (usually rpm-build) and see       rpmbuild(8) for documentation of all the rpm build modes.FILES   rpmrc Configuration       /usr/lib/rpm/rpmrc       /usr/lib/rpm/redhat/rpmrc       /etc/rpmrc       ~/.rpmrc   Macro Configuration       /usr/lib/rpm/macros       /usr/lib/rpm/redhat/macros       /etc/rpm/macros       ~/.rpmmacros   Database       /var/lib/rpm/Basenames       /var/lib/rpm/Conflictname       /var/lib/rpm/Dirnames       /var/lib/rpm/Group       /var/lib/rpm/Installtid       /var/lib/rpm/Name       /var/lib/rpm/Obsoletename       /var/lib/rpm/Packages       /var/lib/rpm/Providename       /var/lib/rpm/Requirename       /var/lib/rpm/Sha1header       /var/lib/rpm/Sigmd5       /var/lib/rpm/Triggername   Temporary       /var/tmp/rpm*SEE ALSO       popt(3),       rpm2cpio(8),       rpmbuild(8),       rpmdb(8),       rpmkeys(8),       rpmsign(8),       rpmspec(8),       rpm --help - as rpm supports customizing the options via popt aliases it's impossible to guarantee that  what's  described  in  the  manual  matches       what's available.       http://www.rpm.org/ <URL:http://www.rpm.org/>AUTHORS       Marc Ewing <[e-mail]>       Jeff Johnson <[e-mail]>       Erik Troan <[e-mail]>

一堆英文啊，是不是很纠结，不过这么一大串，可以只看参数部分的英文介绍，还是很容易的，学习要抓住关键点。