tldr/pages/linux/losetup.md

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]}}

• Detach a given loop device:

sudo losetup {{[-d|--detach]}} {{/dev/loop}}