Macrium Reflect is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux Disk Imaging Tool alternative is Rescuezilla, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Macrium Reflect and 11 are Disk Imaging Tools available for Linux so hopefully you can find a suitable replacement. Other interesting Linux Disk Imaging Tool alternatives to Macrium Reflect are Clonezilla, GNOME Disks, Parted Magic and Veeam Agent.
This is a bootable Linux tool. Macrium does more stuff such as daily "diff" images of a running Windows install to a network drive. Totally different tools.