RaspberryPi Zero 2 Post-install in Ubuntu Server arm64+raspi in Jammy 22.04.2 (archived)

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RaspberryPi Zero 2 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 Zero 2.
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 Zero 2. It should be in the region of 300-500MB.
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
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
  • 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
  • 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
Configure wifi via netplan
  • Place the following in /etc/netplan/wifi.yaml
    (substituting the SSID and password as necessary):
  •       network:
            version: 2
                  dhcp4: true
                      password: my-password-here
  • Run sudo netplan apply
  • Wait a few seconds (to allow DHCP to complete), then run ip
  • 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

ReporterLast updateBugsComment
Passedpwlars2023-02-22 09:41
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