Public bug reported:
[ Impact ]
On RISC-V boards we have specified 'earlycon' on the command line to
provide early kernel log output. This does not work with current
kernels.
We have to specify 'earlycon=sbi' to use the kernel driver for the SBI
debug console extension which is available since OpenSBI v1.3.
[ Test Plan ]
To reproduce the problem append 'console=ttyS0' to the kernel command
line. This will result in writing at 9600 baud in the 'late' console
while the early console is expected at 115200 baud.
With 'earlycon=sbi' the early messages are shown.
For testing the Nezha D1 board can be used with our preinstalled server
image.
[ Where problems could occur ]
The early console might not work and users might see messages late.
[ Other Info ]
n/a
** Affects: livecd-rootfs (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2068739
Title:
[SRU] use earlycon=sbi on the kernel command line
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