Details for revision 2046 of testcase: RaspberryPi CM4 4GB Post-install

This test case is to be carried out on a Raspberry Pi Compute Module 4 4GB.
Follow the installation steps at
IoT installation media

Before booting your CM4 with the new image, edit config.txt on the boot
(1st) partition and uncomment the #dtoverlay=dwc2,dr_mode=host
line to ensure the USB ports on the IO board operate correctly

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 4 4GB. It should be in the region of 3.6-3.8GB.

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
/mnt/stick/rubbish

cmp returns 0 and outputs nothing indicating the files are
identical

With an HDMI monitor that supports audio plugged into
the HDMI0 output, and an available MP3 file:

• Install mpg321 and amixer with sudo apt install mpg321
alsa-utils
• Find the correct hardware output for the HDMI0 port:
  cat /proc/asound/cards and note the number at the start
  of the line for the HDMI0 port (usually 0 and possibly
  1 for any connected monitor(s), and 1 or possibly 2 for the headphone
  jack)
• Attempt to play your MP3 file with: mpg321 -o alsa -a
hw:num,0 music.mp3 substituting
  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
Worlds.mp3"
• 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

With an HDMI monitor that supports audio plugged into
the HDMI1 output, and an available MP3 file:

• Install mpg321 and amixer with sudo apt install mpg321
alsa-utils
• Find the correct hardware output for the HDMI1 port:
  cat /proc/asound/cards and note the number at the start
  of the line for the HDMI1 port (usually 0 and possibly
  1 for any connected monitor(s), and 1 or possibly 2 for the headphone
  jack)
• Attempt to play your MP3 file with: mpg321 -o alsa -a
hw:num,0 music.mp3 substituting
  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
Worlds.mp3"
• 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

Check auto-configuration of ethernet

• Run ip addr
• Check that a valid IP address is recorded on the eth0 interface
• Check ping google.com successfully pings a few times
  (Ctrl+C to cancel)

The "eth0" interface should have a DHCP
assigned IP address and you should be able to ping google.com

Configure wifi via netplan

• Place the following in /etc/netplan/wifi.yaml
  (substituting the SSID and password as necessary):

•       network:
          version: 2
            wifis:
              wlan0:
                dhcp4: true
                access-points:
                  my-ssid-here:
                    password: my-password-here

• Run sudo netplan apply
• Wait a few seconds (to allow DHCP to complete), then run ip
addr
• Check that a valid IP address is recorded on the wlan0 interface
• Check ping google.com successfully pings a few times
  (Ctrl+C to cancel)

The "wlan0" interface should have a DHCP
assigned IP address and you should be able to ping google.com

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
result.