package alt-php81-mariadb10-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed

Issue

alt-php81 update failed if the following packages installed:

alt-php81-mariadb10-8.1.29-1.el8
alt-php81-mariadb101-8.1.29-1.el8
alt-php81-mysql5.5.-8.1.29-1.el8
alt-php81-percona5.6.-8.1.29-1.el8

Error: 
 Problem 1: package alt-php81-mariadb10-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed
  - cannot install both alt-php81-common-8.1.30-1.el8.x86_64 from cloudlinux-rollout-12 and alt-php81-common-8.1.29-2.el8.x86_64 from @System
[..]
 Problem 2: package alt-php81-percona5.6-8.1.29-1.el8.x86_64 from @System requires alt-php81-pdo = 8.1.29, but none of the providers can be installed
  - cannot install both alt-php81-pdo-8.1.30-1.el8.x86_64 from cloudlinux-rollout-12 and alt-php81-pdo-8.1.29-2.el8.x86_64 from @System
[..]
  - cannot install the best update candidate for package alt-php81-pdo-8.1.29-2.el8.x86_64
 Problem 3: package alt-php81-mysql5.5-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed
  - package alt-php81-common-8.1.29-2.el8.x86_64 from @System requires alt-php81 = 8.1.29-2.el8, but none of the providers can be installed
[..]
  - cannot install the best update candidate for package alt-php81-mysql5.5-8.1.29-1.el8.x86_64
  - cannot install the best update candidate for package alt-php81-8.1.29-2.el8.x86_64
 Problem 4: package alt-php81-mariadb101-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed
[..]
  - cannot install the best update candidate for package alt-php81-mariadb101-8.1.29-1.el8.x86_64
  - cannot install the best update candidate for package alt-php81-bcmath-8.1.29-2.el8.x86_64
 Problem 5: problem with installed package alt-php81-percona5.6-8.1.29-1.el8.x86_64
[..]
  - package alt-php81-cli-8.1.30-1.el8.x86_64 from cloudlinux-rollout-12 requires alt-php81-common = 8.1.30-1.el8, but none of the providers can be installed
  - cannot install the best update candidate for package alt-php81-cli-8.1.29-2.el8.x86_64
 Problem 6: problem with installed package alt-php81-mysql5.5-8.1.29-1.el8.x86_64
[..]
 - cannot install the best update candidate for package alt-php81-dba-8.1.29-2.el8.x86_64
 Problem 7: problem with installed package alt-php81-mariadb101-8.1.29-1.el8.x86_64
  - package alt-php81-mariadb101-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed
  - package alt-php81-mariadb101-8.1.29-1.el8.x86_64 from cloudlinux-x86_64-server-8 requires alt-php81-common = 8.1.29, but none of the providers can be installed
[..]
  - cannot install the best update candidate for package alt-php81-enchant-8.1.29-2.el8.x86_64
 Problem 8: problem with installed package alt-php81-mariadb10-8.1.29-1.el8.x86_64
  - package alt-php81-mariadb10-8.1.29-1.el8.x86_64 from @System requires alt-php81-common = 8.1.29, but none of the providers can be installed
  - package alt-php81-mariadb10-8.1.29-1.el8.x86_64 from cloudlinux-x86_64-server-8 requires alt-php81-common = 8.1.29, but none of the providers can be installed
[..]
  - cannot install the best update candidate for package alt-php81-firebird-8.1.29-2.el8.x86_64
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

Environment

• CloudLinux
• alt-php81-mariadb10-8.1.29-1.el8
• alt-php81-mariadb101-8.1.29-1.el8
• alt-php81-mysql5.5.-8.1.29-1.el8
• alt-php81-percona5.6.-8.1.29-1.el8

Solution

Remove the conflicting packages:

rpm -e --justdb --nodeps alt-php81-mariadb10-8.1.29-1.el8.x86_64
rpm -e --justdb --nodeps alt-php81-common-8.1.29-2.el8.x86_64
rpm -e --justdb --nodeps alt-php81-pdo-8.1.29-2.el8.x86_64

 And update the system:

yum update

Cause

The following packages deprecated and not supported anymore:  mysql50, mysql51, mysql55. mariadb55, mariadb100, mariadb101, percona55 and percona56

Corresponding alt-php81-<db-driver>-8.1.29-1 is the latest version, and no further releases are planned.