block-devices interface

block-devices provides the ability to perform operations on raw disk block devices (e.g. /dev/sda, /dev/mmcblk0). This interface grants privileged access to the device.

Auto-connect: no
Super-privileged: yes

Caution

This interface controls a resource shared by the whole system. Snaps that use it can be installed as parallel instances, but every instance acts on the same system resource and snapd does not coordinate between them. Make sure each instance manages different resources, or run only one instance at a time. See Snaps that are unsupported as parallel instances for details..

Requires snapd version 2.37+.

When the plug sets allow-partitions boolean attribute to true, the interface will grant access to individual partition devices (e.g. /dev/sda1, /dev/mmcblk0p1). The plug needs to be declared in the following manner:

plugs:
  block-devices:
    allow-partitions: true

The allow-partitions attribute requires snapd version 2.71+.

Consumers of this interface require a snap declaration for distribution via the Snap Store.