cPanel install failed: 'The background process “EA4 Install” failed with a fatal error: The subprocess reported error number 1 when it ended.'

Symptoms

When attempting to install cPanel, it may fail with the following error:

CONFIG_TEXT: (FATAL): The background process “EA4 Install” failed with a fatal error: The subprocess reported error number 1 when it ended.

Cause

This can occur when there is a temporary issue installing EasyApache 4. The cpanel-install.log should have more information on the error that occurred.

Resolution

Install the default profile with the following command

# /usr/local/bin/ea_install_profile --install /etc/cpanel/ea4//profiles/cpanel/default.json

Then ensure all packages are installed using the following command:

# /scripts/check_cpanel_pkgs

Lastly, run upcp to ensure all the latest updates are applied:

# /scripts/upcp