CubieBoard2 A20 Arch-Linux installing problems

[kalosha]

HI

This is my first post. I search over the forum but can found same problem.

This 2 day I'm trying to install Arch on my Cubie A20, but can't.
I follow general instructions http://archlinuxarm.org/platforms/armv7 ... bieboard-2

Install Ubuntu in VM, following instructions, i'm create boot SD (8gb) but this is not working at all.
Only red light is on, and monitor is showing no signal.

I have same problems on Cubian (debian) OS when there was not correct uEnv.txt

Have any idea about this problem?

[WarheadsSE]

We also don't happen to initialize the HDMI unless you configure it, so don't assume that.

Check the uEnv.txt for anything about a machid

[kalosha]

hi

yes I understand that hdmi is not configured, but there is no request for IP address, this why I think there is some other problem.

but anyway where can I found uEnv.txt documentation tutorial for testing?

Thanks

[WarheadsSE]

linux-sunxi.org

Do you have a serial connection available? That would make things so much simpler.

[kalosha]

yes I know but I have to assembly usb2serial and after I can check exactly what happen there.

but /boot/uEnv.txt is empty at all.

I'm going to add there console=tty0

[WarheadsSE]

ttyS0

tty0 assumes there is a monitor attached for an actual TTY, which there is none.

[kalosha]

ok Finally I connect to board. After many failure.

With another SD I got connections. but no display connections.

$this->bbcode_second_pass_code('', '
[root@alarm ~]# dmesg | grep hdmi
[ 0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mmcblk0p1 rootwait loglevel=8 panic=10 console=ttyS0 hdmi.audio=0 disp.screen0_output_mode=EDID:1280x720p60
')

with this configuration HDMI is not working.
what is wrong ?

[kalosha]

ok Thanks,

I solve the problem thanks for help.

problem with boot was reletaed with SD card class4, when I change it to class10 it start.

how resolve problem with HDMI is here
http://archlinuxarm.org/forum/viewtopic.php?f=33&t=7215#p39647

end finally here is hot to fix
$this->bbcode_second_pass_code('', '
[DISP] *** Lcd in danger...
[DISP] *** Lcd in danger...
[DISP] *** Lcd in danger...
[DISP] *** Lcd in danger...
')

https://groups.google.com/forum/#!topic/linux-sunxi/SDunHbWVFpU

Thanks

[tsiros]

32 GB class 10 uSD card, followed the instructions on http://archlinuxarm.org/platforms/armv7 ... bieboard-2 under kubuntu (using fdisk and bsdtar, not parted nor tar). Connected with ethernet, powered up, but it doesn't boot. Router doesn't assign IP. All i get is the blue led flashing like this .. .. .. .. .. ..

any ideas?

[WarheadsSE]

That's the heartbeat. It's running, just didn't get an IP address.