PHP8.1使用CentOS 7.9更新问题

Question

我试图按照配置向导的说明，将生产web服务器(在linode上)从php7.1更新到8.1，但似乎出现了依赖树错误，如果它破坏了我的web服务器，我不愿使用--skip-broken。这是最好的做法吗？如果在更新后无法解决依赖关系，我可以轻松地还原更新吗？我应该先更新到最新的7.x版本吗？这是yum update的输出

sudo yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: atl.mirrors.clouvider.net
 * epel: d2lzkl7pfhq30w.cloudfront.net
 * extras: mirrors.linode.com
 * remi-php81: mirror.pit.teraswitch.com
 * updates: mirrors.linode.com
remi-php81
remi-php81/primary_db
Resolving Dependencies
--> Running transaction check
---> Package php-cli.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-cli.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-common.x86_64 0:7.1.33-19.el7.remi will be updated
--> Processing Dependency: php(api) = 20160303-64 for package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64
--> Processing Dependency: php(zend-abi) = 20160303-64 for package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64
---> Package php-common.x86_64 0:8.1.6-1.el7.remi will be obsoleting
---> Package php-fpm.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-fpm.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-gd.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-gd.x86_64 0:8.1.6-1.el7.remi will be an update
--> Processing Dependency: libgd.so.103()(64bit) for package: php-gd-8.1.6-1.el7.remi.x86_64
---> Package php-json.x86_64 0:7.1.33-19.el7.remi will be obsoleted
---> Package php-mbstring.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-mbstring.x86_64 0:8.1.6-1.el7.remi will be an update
--> Processing Dependency: libonig.so.105()(64bit) for package: php-mbstring-8.1.6-1.el7.remi.x86_64
---> Package php-mcrypt.x86_64 0:7.1.33-19.el7.remi will be obsoleted
---> Package php-mysqlnd.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-mysqlnd.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-opcache.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-opcache.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-pdo.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-pdo.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-pecl-apcu.x86_64 0:5.1.21-1.el7.remi.7.1 will be updated
---> Package php-pecl-apcu.x86_64 0:5.1.21-1.el7.remi.8.1 will be an update
---> Package php-pecl-igbinary.x86_64 0:3.2.7-1.el7.remi.7.1 will be updated
---> Package php-pecl-igbinary.x86_64 0:3.2.7-1.el7.remi.8.1 will be an update
---> Package php-pecl-mcrypt.x86_64 0:1.0.5-1.el7.remi.8.1 will be obsoleting
---> Package php-pecl-memcache.x86_64 0:4.0.5.2-1.el7.remi.7.1 will be updated
---> Package php-pecl-memcache.x86_64 0:8.0-3.el7.remi.8.1 will be an update
---> Package php-pecl-memcached.x86_64 0:3.2.0-1.el7.remi.7.1 will be updated
---> Package php-pecl-memcached.x86_64 0:3.2.0-1.el7.remi.8.1 will be an update
---> Package php-pecl-mongodb.x86_64 0:1.11.1-1.el7.remi.7.1 will be updated
---> Package php-pecl-mongodb.x86_64 0:1.13.0-1.el7.remi.8.1 will be an update
---> Package php-pecl-msgpack.x86_64 0:2.1.2-1.el7.remi.7.1 will be updated
---> Package php-pecl-msgpack.x86_64 0:2.2.0~RC1-4.el7.remi.8.1 will be an update
---> Package php-pecl-redis.x86_64 0:3.1.6-1.el7.remi.7.1 will be obsoleted
---> Package php-pecl-redis5.x86_64 0:5.3.7-1.el7.remi.8.1 will be obsoleting
--> Processing Dependency: liblzf.so.1()(64bit) for package: php-pecl-redis5-5.3.7-1.el7.remi.8.1.x86_64
--> Processing Dependency: libzstd.so.1()(64bit) for package: php-pecl-redis5-5.3.7-1.el7.remi.8.1.x86_64
---> Package php-pgsql.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-pgsql.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-process.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-process.x86_64 0:8.1.6-1.el7.remi will be an update
---> Package php-xml.x86_64 0:7.1.33-19.el7.remi will be updated
---> Package php-xml.x86_64 0:8.1.6-1.el7.remi will be an update
--> Running transaction check
---> Package liblzf.x86_64 0:3.6-7.el7 will be installed
---> Package libzstd.x86_64 0:1.5.2-1.el7 will be installed
---> Package php-common.x86_64 0:7.1.33-19.el7.remi will be updated
--> Processing Dependency: php(api) = 20160303-64 for package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64
--> Processing Dependency: php(zend-abi) = 20160303-64 for package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64
---> Package php-gd.x86_64 0:8.1.6-1.el7.remi will be an update
--> Processing Dependency: libgd.so.103()(64bit) for package: php-gd-8.1.6-1.el7.remi.x86_64
---> Package php-mbstring.x86_64 0:8.1.6-1.el7.remi will be an update
--> Processing Dependency: libonig.so.105()(64bit) for package: php-mbstring-8.1.6-1.el7.remi.x86_64
--> Finished Dependency Resolution
Error: Package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64 (@remi-php71)
           Requires: php(api) = 20160303-64
           Removing: php-common-7.1.33-19.el7.remi.x86_64 (@remi-php71)
               php(api) = 20160303-64
           Updated By: php-common-8.1.6-1.el7.remi.x86_64 (remi-php81)
               php(api) = 20210902-64
           Available: php-common-5.4.16-48.el7.x86_64 (base)
               php(api) = 20100412-64
           Available: php-common-8.1.5-1.el7.remi.x86_64 (remi-php81)
               php(api) = 20210902-64
Error: Package: php-gd-8.1.6-1.el7.remi.x86_64 (remi-php81)
           Requires: libgd.so.103()(64bit)
Error: Package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64 (@remi-php71)
           Requires: php(zend-abi) = 20160303-64
           Removing: php-common-7.1.33-19.el7.remi.x86_64 (@remi-php71)
               php(zend-abi) = 20160303-64
           Updated By: php-common-8.1.6-1.el7.remi.x86_64 (remi-php81)
               php(zend-abi) = 20210902-64
           Available: php-common-5.4.16-48.el7.x86_64 (base)
               php(zend-abi) = 20100525-64
           Available: php-common-8.1.5-1.el7.remi.x86_64 (remi-php81)
               php(zend-abi) = 20210902-64
Error: Package: php-mbstring-8.1.6-1.el7.remi.x86_64 (remi-php81)
           Requires: libonig.so.105()(64bit)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

Answer 1

Error: Package: php-pecl-apcu-bc-1.0.5-1.el7.remi.7.1.x86_64 (@remi-php71)
          Requires: php(api) = 20160303-64

bc为PHP7提供了与旧的APC扩展的兼容性。

它被废弃了，PHP 8不再支持它了。

因此，您必须在升级之前删除它，如果您真的需要它，您不能升级，必须使用它来修复应用程序才能升级。

 Error: Package: php-gd-8.1.6-1.el7.remi.x86_64 (remi-php81)
           Requires: libgd.so.103()(64bit)

缺少的依赖项位于remi安全的存储库中，默认情况下，在正确的安装中，该存储库将在向导指令之后启用。

当然，由于这是一个重大的升级，您必须确保您的所有应用程序为这个新版本做好了准备。