Bug 13892

Summary:	Cannot access the terminal via serial port on BeagleBone Black
Product:	[Runtime] System Startup	Reporter:	delete
Component:	system-startup	Assignee:	delete
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	normal
Priority:	Medium+	CC:	kevin.tian, randy.macleod, tvgamblin
Version:	3.1.2
Target Milestone:	3.2 M2
Hardware:	BeagleBone
OS:	arm
Whiteboard:	backport 3.1
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	Don't know

Description delete 2020-05-04 06:09:43 UTC

Since a few days, I've been trying to access my BeagleBone Black via serial on the poky image-core-full-cmdline (without any modification)
The image is flashed on a microSD card which is inserted in the BeagleBone Black.

I followed the following steps to create and flash the image:
- git clone -b dunfell git://git.yoctoproject.org/poky
- cd poky
- MACHINE="beaglebone-yocto" bitbake core-image-full-cmdline
- sudo dd if=tmp/deploy/images/beaglebone-yocto/core-image-full-cmdline-beaglebone-yocto.wic of=/dev/sdc bs=4096

Unfortunately, I'm stuck on a line that repeats itself every five minutes:

INIT: Id "AMA0" respawning too fast: disabled for 5 minutes

Here is the complete log: https://pastebin.com/Hc3aqE1p

Thank you for your help

Comment 1 delete 2020-05-04 06:13:09 UTC

Additionally, here are the contents of the extlinux.conf (original) file, located in the boot partition at /extlinux :

default Yocto
label Yocto
   kernel /zImage
   fdtdir /
append root=PARTUUID=01139ec5-02 rootwait console=ttyS0,115200

Comment 2 delete 2020-05-04 07:21:45 UTC

I don't have this problem with the core-image-minimal

Comment 3 Kevin Hao 2020-05-13 00:55:00 UTC

I can't reproduce this on my side, we have set the SERIAL_CONSOLES_CHECK for this machine, so it should delete the nonexistent tty devices from the /etc/inittab in the first boot. Could you paste your /etc/inittab?

Comment 4 Kevin Hao 2020-06-21 18:29:56 UTC

Guillaume Bonnet, could you provide more details about how to reproduce this issue?

Comment 5 Randy MacLeod 2020-07-09 08:54:32 UTC

Ping.

Comment 6 delete 2020-07-19 07:15:46 UTC

Can't provide needed information