boot beagleboard rev C5

GoogleGroups
1

Hi everybody and thanks in advance…

i’ve a strange issue, because my beagle works fine with Angstrom (with original kernel 2.6.32 and 3.1 customized ) but i can’t see in my terminal minicom the kernel massages and the prompt login in the end of boot.
Instead the external monitor works fine!!!
I need to control the Angstrom from minicom.
My bootargs is:

OMAP3 beagleboard.org # printenv bootargs
bootargs=console=ttyO2,115200n8 root=/dev/mmcblk0p2 rw rootwait

the consol’s messages are blocked here:

OMAP3 beagleboard.org # boot
gpio: pin 173 (gpio 173) value is 1
gpio: pin 7 (gpio 7) value is 0
SD/MMC found on device 0
reading uEnv.txt

** Unable to read “uEnv.txt” from mmc 0:1 **
Loading file “/boot/uImage” from mmc device 0:2
3203088 bytes read
Booting from mmc …

Booting kernel from Legacy Image at 80200000 …

Image Name: Angstrom/2.6.32/beagleboard
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3203024 Bytes = 3.1 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum … OK
Loading Kernel Image … OK
OK

Starting kernel …

Uncompressing Linux…

Sometime it works, but i don’t know why!!

thanks for any help.

Nicola

2

_______________________________________
From: beagleboard@googlegroups.com [beagleboard@googlegroups.com] on behalf of nicola_bb1C4 [carli.nicola67761@gmail.com]
Sent: Monday, December 17, 2012 6:21 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] boot beagleboard rev C5

Hi everybody and thanks in advance...

i've a strange issue, because my beagle works fine with Angstrom (with original kernel 2.6.32 and 3.1 customized ) but i can't see in my terminal minicom the kernel >massages and the prompt login in the end of boot.
Instead the external monitor works fine!!!

Make sure modem-manager is not running, it will attempt to initialize the serial port with Hayes AT commands which will interfere with the BeagleBone boot process.

# ps auxww | grep -i modem-manager
# kill -i (PID)
# apt-get purge modemmanager

3

Well a little history first, in v2.6.35 "ttyO2" could replace "ttyS2"
with a brand new omap serial driver.. Now days it's enabled by
default...

Regards,