Storage Devices

The Librem 5 is supplied with one form of solid state storage built-in (eMMC) and supports additional storage using a microSD card.

This document provides a brief overview of how these devices appear to the system software.


The phone is shipped with 32 GB eMMC (embedded MultiMediaCard memory) that contains the operating system and space for the user’s files and installed applications.

This is visible in the root file system as /dev/mmcblk0. Files that begin with the mmcblk0 prefix, such as mmcblk0p1 and mmcblk0p2 represent the partitions of this storage.



It is recommended that you switch off the phone before removing and reinserting the SIM tray.

The phone accepts a microSD card in the outer slot of the SIM tray. This can be used to provide additional storage capacity, especially for user data.

When a suitable microSD card is installed, it appears at /dev/sda in the root file system. Partitions of the card appears as numbered files with the same prefix, such as /dev/sda1 and /dev/sda2.