{"id":7358,"date":"2018-04-27T20:35:47","date_gmt":"2018-04-27T12:35:47","guid":{"rendered":"http:\/\/rmohan.com\/?p=7358"},"modified":"2018-04-29T16:08:51","modified_gmt":"2018-04-29T08:08:51","slug":"mysql-5-8-on-centos-7","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=7358","title":{"rendered":"MYSQL 5.8 on Centos 7"},"content":{"rendered":"
    \n
  1. systemd<\/code>\u00a0is now used to look after mySQL instead of\u00a0mysqld_safe<\/code>\u00a0(which is why you get the\u00a0-bash: mysqld_safe: command not found<\/code>\u00a0error – it’s not installed)<\/li>\n
  2. The\u00a0user<\/code>\u00a0table structure has changed.<\/li>\n<\/ol>\n

    So to reset the root password, you still start mySQL with\u00a0--skip-grant-tables<\/code>\u00a0options and update the\u00a0user<\/code>\u00a0table, but how you do it has changed.<\/p>\n

    1.<\/span> Stop mysql<\/span>:<\/span>\r\nsystemctl stop mysqld\r\n\r\n<\/span>2.<\/span> Set<\/span> the mySQL environment <\/span>option<\/span> \r\nsystemctl set-environment MYSQLD_OPTS<\/span>=<\/span>\"--skip-grant-tables\"<\/span>\r\n\r\n3.<\/span> Start<\/span> mysql usig the options you just <\/span>set<\/span>\r\nsystemctl <\/span>start<\/span> mysqld\r\n\r\n<\/span>4.<\/span> Login <\/span>as<\/span> root\r\nmysql <\/span>-<\/span>u root\r\n\r\n<\/span>5.<\/span> Update<\/span> the root <\/span>user<\/span> password <\/span>with<\/span> these mysql commands\r\nmysql<\/span>><\/span> UPDATE<\/span> mysql<\/span>.<\/span>user<\/span> SET<\/span> authentication_string <\/span>=<\/span> PASSWORD<\/span>(<\/span>'MyNewPassword'<\/span>)<\/span>\r\n    -><\/span> WHERE<\/span> User<\/span> =<\/span> 'root'<\/span> AND<\/span> Host <\/span>=<\/span> 'localhost'<\/span>;<\/span>\r\nmysql<\/span>><\/span> FLUSH PRIVILEGES<\/span>;<\/span>\r\nmysql<\/span>><\/span> quit\r\n\r\n<\/span>***<\/span> Edit <\/span>***<\/span>\r\nAs<\/span> mentioned my shokulei <\/span>in<\/span> the comments<\/span>,<\/span> for<\/span> 5.7.6<\/span> and<\/span> later<\/span>,<\/span> you should <\/span>use<\/span> \r\n   mysql<\/span>><\/span> ALTER<\/span> USER<\/span> 'root'<\/span>@<\/span>'localhost'<\/span> IDENTIFIED <\/span>BY<\/span> 'MyNewPass'<\/span>;<\/span>\r\nOr<\/span> you<\/span>'<\/span>ll get a warning\r\n\r\n<\/span>6.<\/span> Stop mysql\r\nsystemctl stop mysqld\r\n\r\n<\/span>7.<\/span> Unset the mySQL envitroment <\/span>option<\/span> so it starts normally next time\r\nsystemctl unset-environment MYSQLD_OPTS\r\n\r\n<\/span>8.<\/span> Start<\/span> mysql normally<\/span>:<\/span>\r\nsystemctl <\/span>start<\/span> mysqld\r\n\r\nTry <\/span>to<\/span> login <\/span>using<\/span> your new password<\/span>:<\/span>\r\n7.<\/span> mysql <\/span>-<\/span>u root <\/span>-<\/span>p<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
     systemd is now used to look after mySQL instead of mysqld_safe (which is why you get the -bash: mysqld_safe: command not found error – it’s not installed) The user table structure has changed. <\/p>\n
    So to reset the root password, you still start mySQL with –skip-grant-tables options and update the user table, but how you […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7358"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7358"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7358\/revisions"}],"predecessor-version":[{"id":7359,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7358\/revisions\/7359"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}