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由于缺少 php-mbstring，无法在 Amazon EC2 实例上安装 Wordpress

tag-icon • tag-icon amazon-ec2 php rhel7
由于缺少 php-mbstring，无法在 Amazon EC2 实例上安装 Wordpress

我在 Amazon 的 EC2 上创建了一个新实例，正在尝试wordpress，但失败了，原因是php-mbstring：

# yum install wordpress
Loaded plugins: amazon-id, rhui-lb
Resolving Dependencies
--> Running transaction check
---> Package wordpress.noarch 0:3.9.1-1.el7 will be installed
--> Processing Dependency: php-simplepie >= 1.3.1 for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-mbstring for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-gd for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-enchant for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-PHPMailer for package: wordpress-3.9.1-1.el7.noarch
--> Running transaction check
---> Package php-PHPMailer.noarch 0:5.2.6-1.el7 will be installed
--> Processing Dependency: php-mbstring >= 5.1.0 for package: php-PHPMailer-5.2.6-1.el7.noarch
---> Package php-gd.x86_64 0:5.4.16-21.el7 will be installed
--> Processing Dependency: libpng15.so.15(PNG15_0)(64bit) for package: php-gd-5.4.16-21.el7.x86_64
--> Processing Dependency: libt1.so.5()(64bit) for package: php-gd-5.4.16-21.el7.x86_64
--> Processing Dependency: libpng15.so.15()(64bit) for package: php-gd-5.4.16-21.el7.x86_64
--> Processing Dependency: libXpm.so.4()(64bit) for package: php-gd-5.4.16-21.el7.x86_64
--> Processing Dependency: libX11.so.6()(64bit) for package: php-gd-5.4.16-21.el7.x86_64
---> Package php-simplepie.noarch 0:1.3.1-4.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-simplepie-1.3.1-4.el7.noarch
--> Processing Dependency: php-IDNA_Convert for package: php-simplepie-1.3.1-4.el7.noarch
---> Package wordpress.noarch 0:3.9.1-1.el7 will be installed
--> Processing Dependency: php-mbstring for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-enchant for package: wordpress-3.9.1-1.el7.noarch
--> Running transaction check
---> Package libX11.x86_64 0:1.6.0-2.1.el7 will be installed
--> Processing Dependency: libX11-common = 1.6.0-2.1.el7 for package: libX11-1.6.0-2.1.el7.x86_64
--> Processing Dependency: libxcb.so.1()(64bit) for package: libX11-1.6.0-2.1.el7.x86_64
---> Package libXpm.x86_64 0:3.5.10-5.1.el7 will be installed
---> Package libpng.x86_64 2:1.5.13-5.el7 will be installed
---> Package php-IDNA_Convert.noarch 0:0.8.0-2.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-IDNA_Convert-0.8.0-2.el7.noarch
---> Package php-PHPMailer.noarch 0:5.2.6-1.el7 will be installed
--> Processing Dependency: php-mbstring >= 5.1.0 for package: php-PHPMailer-5.2.6-1.el7.noarch
---> Package php-simplepie.noarch 0:1.3.1-4.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-simplepie-1.3.1-4.el7.noarch
---> Package t1lib.x86_64 0:5.1.2-14.el7 will be installed
---> Package wordpress.noarch 0:3.9.1-1.el7 will be installed
--> Processing Dependency: php-mbstring for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-enchant for package: wordpress-3.9.1-1.el7.noarch
--> Running transaction check
---> Package libX11-common.noarch 0:1.6.0-2.1.el7 will be installed
---> Package libxcb.x86_64 0:1.9-5.el7 will be installed
--> Processing Dependency: libXau.so.6()(64bit) for package: libxcb-1.9-5.el7.x86_64
---> Package php-IDNA_Convert.noarch 0:0.8.0-2.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-IDNA_Convert-0.8.0-2.el7.noarch
---> Package php-PHPMailer.noarch 0:5.2.6-1.el7 will be installed
--> Processing Dependency: php-mbstring >= 5.1.0 for package: php-PHPMailer-5.2.6-1.el7.noarch
---> Package php-simplepie.noarch 0:1.3.1-4.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-simplepie-1.3.1-4.el7.noarch
---> Package wordpress.noarch 0:3.9.1-1.el7 will be installed
--> Processing Dependency: php-mbstring for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-enchant for package: wordpress-3.9.1-1.el7.noarch
--> Running transaction check
---> Package libXau.x86_64 0:1.0.8-2.1.el7 will be installed
---> Package php-IDNA_Convert.noarch 0:0.8.0-2.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-IDNA_Convert-0.8.0-2.el7.noarch
---> Package php-PHPMailer.noarch 0:5.2.6-1.el7 will be installed
--> Processing Dependency: php-mbstring >= 5.1.0 for package: php-PHPMailer-5.2.6-1.el7.noarch
---> Package php-simplepie.noarch 0:1.3.1-4.el7 will be installed
--> Processing Dependency: php-mbstring for package: php-simplepie-1.3.1-4.el7.noarch
---> Package wordpress.noarch 0:3.9.1-1.el7 will be installed
--> Processing Dependency: php-mbstring for package: wordpress-3.9.1-1.el7.noarch
--> Processing Dependency: php-enchant for package: wordpress-3.9.1-1.el7.noarch
--> Finished Dependency Resolution
Error: Package: php-PHPMailer-5.2.6-1.el7.noarch (epel)
           Requires: php-mbstring >= 5.1.0
Error: Package: php-IDNA_Convert-0.8.0-2.el7.noarch (epel)
           Requires: php-mbstring
Error: Package: wordpress-3.9.1-1.el7.noarch (epel)
           Requires: php-mbstring
Error: Package: php-simplepie-1.3.1-4.el7.noarch (epel)
           Requires: php-mbstring
Error: Package: wordpress-3.9.1-1.el7.noarch (epel)
           Requires: php-enchant
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
#

我正在使用 RHEL7：

# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.0 (Maipo)
# yum repolist
Loaded plugins: amazon-id, rhui-lb
repo id                                                                                                     repo name                                                                                                                   status
epel/x86_64                                                                                                 Extra Packages for Enterprise Linux 7 - x86_64                                                                              4,325
rhui-REGION-client-config-server-7/x86_64                                                                   Red Hat Update Infrastructure 2.0 Client Configuration Server 7                                                                 1
rhui-REGION-rhel-server-releases/7Server/x86_64                                                             Red Hat Enterprise Linux Server 7 (RPMs)                                                                                    4,447
repolist: 8,773
#

不久前，在另一个环境中，我必须首先运行以下命令才能访问php-mbstring：

rhn-channel --add --channel=rhel-x86_64-server-optional-6

如何在 Amazon EC2 中执行此操作？：

答案1

据我所知包清单，RHEL 7 附带的 PHP 版本非常小，缺少很多扩展。它们似乎也不在任何其他渠道中。

许多人使用remi 存储库获得最新和完整的 PHP 版本，您可能也希望这样做。目前有适用于 PHP 5.4 和 5.5 的存储库。

答案2

php-mbstrings 可通过 rhel-x86_64-server-optional-7 频道在 RHEL7 中使用。

rhn-channel -c rhel-x86_64-server-optional-7 -a; yum info php-mbstrings

yum info php-mbstring
Loaded plugins: rhnplugin
This system is receiving updates from RHN Classic or Red Hat Satellite.
epel/x86_64/metalink                                                                                                                                                                    | 4.3 kB  00:00:00
Installed Packages
Name        : php-mbstring
Arch        : x86_64
Version     : 5.4.16
Release     : 21.el7
Size        : 1.3 M
Repo        : installed
From repo   : rhel-x86_64-server-optional-7
Summary     : A module for PHP applications which need multi-byte string handling
URL         : http://www.php.net/
License     : PHP and LGPLv2 and BSD and OpenLDAP
Description : The php-mbstring package contains a dynamic shared object that will add
            : support for multi-byte string handling to PHP.

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