On Tue, 28 Aug 2018, Stefan Niestegge wrote: > the kernel does not start up and run the D-I from the initrd. A serial > terminal was connected to one TT, but all it received was "ABCDEJK". > If you have CONFIG_EARLYPRINTK=y then you can enable the early console. Try passing the kernel parameter 'earlyprintk'. That should cause kernel messages to be sent to the same device(s) to which "ABCDEJK" was sent. --