panel: check OS architecture

[Linux123123]

Describe the bug
The script can be run on other architectures then x86_64, even though MariaDB only supports x86_64.

To Reproduce
Steps to reproduce the behaviour:

1. Run the script on 32 bit machine
2. The script tries to install MariaDB and can't

Expected behaviour
It should check if the OS is x86_64 and disallow other architectures.

OS (please complete the following information):

• OS: all
• Installation: panel (wings already checks)

Additional context

[error] The MariaDB Repository supports these Linux OSs, on x86-64 only:
    * RHEL/CentOS 7 & 8
    * Ubuntu 16.04 LTS (xenial), 18.04 LTS (bionic), & 20.04 LTS (focal)
    * Debian 9 (stretch) & 10 (buster)
    * SLES 12 & 15
[error] See https://mariadb.com/kb/en/mariadb/mariadb-package-repository-setup-and-usage/#platform-support```

[vilhelmprytz]

Thank you for reporting this. This is definitely not intended behaviour. Can we fetch CPU architecture without using virt-what?

[Linux123123]

We already have this in wings install.

  MACHINE_TYPE=$(uname -m)
  if [ "${MACHINE_TYPE}" != "x86_64" ]; then # check the architecture
    print_warning "Detected architecture $MACHINE_TYPE"
    print_warning "Using any other architecture than 64 bit (x86_64) will cause problems."

    echo -e -n  "* Are you sure you want to proceed? (y/N):"
    read -r choice

    if [[ ! "$choice" =~ [Yy] ]]; then
      print_error "Installation aborted!"
      exit 1
    fi
  fi

It doesn't use virt-what for this part.

[vilhelmprytz]

We already have this in wings install.

  MACHINE_TYPE=$(uname -m)
  if [ "${MACHINE_TYPE}" != "x86_64" ]; then # check the architecture
    print_warning "Detected architecture $MACHINE_TYPE"
    print_warning "Using any other architecture than 64 bit (x86_64) will cause problems."

    echo -e -n  "* Are you sure you want to proceed? (y/N):"
    read -r choice

    if [[ ! "$choice" =~ [Yy] ]]; then
      print_error "Installation aborted!"
      exit 1
    fi
  fi

It doesn't use virt-what for this part.

Ah, my bad, got a little confused. Yes, that could definitely be used!