RaspberryPi CM3+ Lite Post-install in Ubuntu Server armhf+raspi3 in Eoan Final (archived)

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RaspberryPi CM3+ Lite Post-installDetailed information on the testcase
Testcase (Report an issue with this testcase)

This test case is to be carried out on a Raspberry Pi Compute Module 3+ Lite.
Follow the installation steps at
IoT installation media

Run sudo flash-kernel
Exit code is clean (0) and no error messages are reported
Run sudo reboot
System reboots successfully to a login prompt
Run sudo shutdown -h now
System shuts down in a reasonable time (less than a minute)
Check output of free -h
Reported "Mem" under "total" is consistent with a
Raspberry Pi Compute Module 3+ Lite. It should be in the region of 800-1000MB.
Perform a large (300-600MB) file copy to USB storage
  • Generate a large (500MB) file: dd if=/dev/urandom of=rubbish
    bs=1M count=500
  • Insert a USB stick (appropriately sized) into a spare USB port
  • Make a mount directory: sudo mkdir /mnt/stick
  • Mount the stick: sudo mount /dev/sda1 /mnt/stick
    (modify mount-point as necessary; check sudo dmesg
    output if unsure)
  • Copy the file: sudo cp rubbish /mnt/stick/
  • Unmount the stick: sudo umount /mnt/stick
  • Remove the stick from the USB port
  • Re-insert the stick into the USB port
  • Re-mount the stick: sudo mount /dev/sda1 /mnt/stick
    (again, adjust mount-point as necessary)
  • Compare the copied file to that on the stick: cmp rubbish
cmp returns 0 and outputs nothing, indicating the files are
Connect a USB keyboard to one of the USB2 ports
Verify that keys typed on the keyboard appear on the console
With an HDMI monitor that supports audio, and an available MP3 file:
  • Install mpg321 and amixer with sudo apt install mpg321
  • Find the correct hardware output for the HDMI port:
    cat /proc/asound/cards and note the number at the start
    of the line for the HDMI port (usually 0 and possibly
    1 for any connected monitor(s), and 1 or possibly 2 for the headphone
  • Attempt to play your MP3 file with: mpg321 -o alsa -a
    hw:num,0 music.mp3
    num for the number found during the previous step, and
    music.mp3 for your choice of MP3 file, e.g. mpg321 -o
    alsa -a hw:0,0 "Jeff Wayne - War of the
  • Use Ctrl+C to end playback early, if you wish
  • If you cannot hear anything, first check that the mixer's volume is
    not set too low; run alsamixer, and adjust the volume
    (J for down, K for up) before exiting
    (Esc) and retrying playback
Audio can be heard through the device

If all actions produce the expected results listed,
please submit a 'passed' result.
If any action fails, or produces an unexpected result,
please submit a 'failed' result and file a bug. Please be sure to include
the bug number when you submit your

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