preinstalled Nezha D1 22.04.1 image stops serial console output in the middle of boot sequence

[Denis Ovsienko]

https://cdimage.ubuntu.com/releases/22.04.1/release/ubuntu-22.04.1-preinstalled-server-riscv64+nezha.img.xz installed on Nezha D1 (1GB RAM) produces the usual console output, but when it comes to launching the kernel, the serial console goes does not output anything for one or two minutes until halfway through userspace initialization. Please see the attached boot log.

On small boards like this one it is customary to direct all boot message to the serial console, please consider making this the default.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Heinrich Schuchardt (xypron)]

Replacing 'quiet splash' by 'efi=debug earlycon' on the Linux command line would provide more feedback to the user on slow RISC-V boards especially without EFI Graphical Output Protocol.

Of course all hidden kernel messages can be displayed after login with 'sudo dmesg -H'.

[Denis Ovsienko (dovsienko)]

Ubuntu 22.04.2 image does not have this problem.