Plesk installation on AWS instance fails:
ERROR: Unable to detect OS: neither /etc/debian_version nor /etc/redhat-release found.
The server is deployed using Amazon Linux AMI/Amazon Linux 2 LTS Candidate AMI images:
Amazon Linux images are not supported.
Installation on Amazon Linux AMI is yet to be implemented in Plesk.
Please take part in our product improvement by going to our UserVoice portal and vote for this feature.
The recommended way to install Plesk on Amazon EC2 is to install using Plesk configurations available on AWS Marketplace:
How to deploy Plesk on the Amazon EC2 service.