Hi Per,
On 04.01.21 14:13, Per Jessen wrote:
In grub, edit the command line, put "console=ttyS0..." last (after
"console=tty") and maybe add "earlyprintk=serial,ttyS0,115200", then
remove the "loglevel=...", "splash=..." and instead add "debug" to
get as much output from the kernel as early as possible.
I tried that, still no more output after this line:
OK, then it is of course possible that the kernel just does not start at
all.
If you'd want to give it another try, one method to verify that your
command line is actually working for early kernel debugging would be to
try the same console=... earlyprintk=... on an otherwise working setup,
just to make sure that the parameters are all correct.
The good (and bad...) thing about misspelt kernel parameters is, that
they are just ignored most of the time ;-)
Good luck :-)
--
Stefan Seyfried
"For a successful technology, reality must take precedence over
public relations, for nature cannot be fooled." -- Richard Feynman
