$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

Step-by-step – Mainline Elementary OS Installation

January 19, 2021 | By the+gnu+linux+evangelist.

Installing

  1. 2. Enabling Mainline PPA

    Add Mainline PPA for Ubuntu GNU/Linux

    Enabling Mainline Repo for Ubuntu
  2. 3. Installing Mainline

    Then to Install Mainline in Ubuntu
    Simply run:

    sudo apt install mainline

    If Got “User is Not in Sudoers file” then Look: Solution

Contents


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