RootFS Requirements - RootFS Requirements - 2026.1 English - UG1186

Libmetal and OpenAMP User Guide (UG1186)
Document ID
UG1186
Release Date
2026-06-24
Version
2026.1 English

Complete the following steps on the Linux root file system.

  1. Add the RPMsg kernel modules. Make sure that the root file system includes these kernel modules:
    /lib/modules/<kernel-version>/kernel/drivers/rpmsg/rpmsg_char.ko
/lib/modules/<kernel-version>/kernel/drivers/rpmsg/rpmsg_ctrl.ko
/lib/modules/<kernel-version>/kernel/drivers/tty/rpmsg_tty.ko
  2. Place the firmware binary in the /lib/firmware/<FW ELF> directory. The remote processor (remoteproc) framework searches for firmware in /lib/firmware/ when it loads the firmware.
  3. Make sure that the root file system includes the rpmsg-utils tools that you need for endpoint management, such as:
    • rpmsg_ping
    • rpmsg_export_dev