losetup — Set up and control loop devices. More information: <https://manned.org/losetup>.

List loop devices with detailed info

losetup {{[-a|--all]}}

Attach a file to a given loop device

sudo losetup {{/dev/loop}} /{{path/to/file}}

Attach a file to a new free loop device and scan the device for partitions

sudo losetup --show {{[-P|--partscan]}} {{[-f|--find]}} /{{path/to/file}}

Attach a file to a read-only loop device

sudo losetup {{[-r|--read-only]}} {{/dev/loop}} /{{path/to/file}}

Detach all loop devices

sudo losetup {{[-D|--detach-all]}}