Unable to install or update Plesk in CloudLinux: The Yum utility failed to install the required packages

Symptoms

• Unable to install or update Plesk in CloudLinux. The same error message is also available in /var/log/plesk/install/autoinstaller3.log:

  # sh <(curl https://autoinstall.plesk.com/one-click-installer || wget -O – https://autoinstall.plesk.com/one-click-installer)
  …
  Traceback (most recent call last):
  File “/usr/local/psa/bin/yum_install”, line 239, in <module>
  main()
  File “/usr/local/psa/bin/yum_install”, line 225, in main
  inst, rem = installer.resolve(to_install, opts.remove, opts.tries)
  File “/usr/local/psa/bin/yum_install”, line 157, in resolve
  raise Exception(“Failed to solve dependencies:n” + ‘n’.join(msgs))
  Exception: Failed to solve dependencies:
  psa-updates-17.8.11-rhel6.build1708200211.19.noarch requires nss >= 3.44.0-7.el6_10
  plesk-php70-pspell-7.0.33-centos7.18120712.x86_64 requires libpspell.so.15()(64bit)
  sw-engine-cli-2.24-2.24.11-0centos.7.181127.1152.x86_64 requires libicuuc.so.50()(64bit)
  plesk-php70-imagick-3.4.3-centos7.18021515.x86_64 requires libMagickWand.so.5()(64bit)
  1:plesk-php73-intl-7.3.0-centos7.18121116.x86_64 requires libicui18n.so.50()(64bit)
  plesk-core-17.8.11-cos7.build1708180301.19.x86_64 requires perl-Text-Iconv
  …
  Error: The Yum utility failed to install the required packages.
  Attention! Your software might be inoperable.
  Please contact product technical support.

• Yum shows CloudLinux repository is disabled:

  # yum repolist | egrep ^cloudlinux | egrep server
  (Empty Output)

• CloudLinux repository is disabled in /etc/yum.repos.d/cloudlinux.repo:

  # egrep ^[cloudlinux|enabled /etc/yum.repos.d/cloudlinux.repo
  [cloudlinux-base]
  enabled=0
  [cloudlinux-updates]
  enabled=0
  …

• CloudLinux plugin package yum-rhn-plugin is installed but it is disabled:

  # cat /etc/yum/pluginconf.d/rhnplugin.conf
  [main]
  enabled = 0
  …

Cause

By default, CloudLinux repository is disabled because it is managed by CloudLinux plugin package yum-rhn-plugin. However, as rhnplugin is disabled, CloudLinux repository remains disabled.

Resolution

1. Connect into the server via SSH

2. Backup /etc/yum/pluginconf.d/rhnplugin.conf file:

   # cp -a /etc/yum/pluginconf.d/rhnplugin.conf{,.backup}

3. Enable rhn-plugin:

   # sed -i ‘s/^enabled = 0/enabled = 1/’ /etc/yum/pluginconf.d/rhnplugin.conf

4. Verify CloudLinux repository is enabled:

   # yum repolist
   …
   cloudlinux-imunify360/7/x86_64 CloudLinux-7 – Imunify360 756
   cloudlinux-x86_64-server-7 CloudLinux Server 7 x86_64 47,408
   repolist: 48,164

5. Install Plesk