On 09/18/2013 07:00 AM, Niels de Vos wrote:
I am happy to test, but indeed the Wandboard in RC2 uses extlinux.
booting it shows a uboot menu (with "U-Boot console" as only entry which
Manually loading the boot.scr and running it shows a-b-c and starts
kernel successfully. Boot log attached. Unfortunately, there seems to be
one issue that the serial output after "Starting kernel..." is messed
up. It only seems to be something binary, so maybe the console
parameters are wrong. I'll try to have a look at that an other day.
Yes, this is a known issue which requires an update to uboot-tools.
Basically, abc uses the uboot environment variable $console. Currently
uboot-tools provides that setting, which includes the right tty, but
doesn't set the speed (It should be 115200), so the kernel message
output is garbled, probably 9600 baud. Systemd seems to figure out the
right setting in the end though.
It is not clear to me what the advised/correct way to configure the
system should be. Is booting with extlinux the goal, or use a-b-c?
Either way, the uboot.imx that is compiled for the Wandboard does not
seem to have the correct autoboot options. This is probably a bug in the
configuration done by the uboot-tools package, but without knowing what
the expected/planned behaviour is, I can not patch/test or file a decent
Long term we'd like to retire abc in favor of extlinux- abc is a stopgap
for boards with a uboot which cannot support it. I suggest filing a BZ
against uboot-tools for what appears to be missing. Thanks again,
Brendan Conoboy / Red Hat, Inc. / blc(a)redhat.com