Boot hangs

mattizz

melanrz replied at 2015-10-29 08:57
simply as hell,burn img,no copied nothing on BOOT!!!!! Just rename script.binopipc720 to script.bin  ...

I have and I have posted log from the serial monitor. By boot I think that we both mean FAT partition, not in extf4 internal filesystem. Without renaming this script we wouldn't even get to this point.

liderbug

2452619264 Oct 24 11:08 OrangePI-PC_Ubuntu_Vivid_Mate.img
dd bs=1M if=/home/chuck/Downloads/OrangePI-PC_Ubuntu_Vivid_Mate.img  of=/dev/sdf oflag=direct
sync
[unplug][plug]
cd /run/media/chuck/BOOT
cp script.bin.OPI-PC_720p60 script.bin
cd
sync
umount /dev/sdf1 ; umount /dev/sdf2 ;
install in board, power up and about 15 seconds later ..." Starting Copy rules generated while the root was ro..."
and there she sets ... forever.

An aside:  Note to web staff - my browser timed out 3 times before I got this page to load.  

nz1

I think you have to copy the right uIMage file as well.
But also get the latest updates from script kernal.tar.gz as this will have the latest bug fixes and enhancements.

mattizz

I have copied uImage and scripts.bin, if I hadn't I wouldn't even boot the board. Liderbug have you somehow managed to overcome this issue?

EDIT:
now something different happened: I tried to boot with wireless keyboard and it failed even sooner than before, then i removed the usb dongle and rebooted. Here is a log:

http://pastebin.com/7s2GwC3m

as you can see it went into a some kind of loop with

1. [  522.630008] INFO: rcu_sched detected stalls on CPUs/tasks:
   
2. [  522.638872]         1: (1 GPs behind) idle=a41/140000000000000/0
   
3. [  522.640001]         2: (1 GPs behind) idle=cdd/140000000000000/0
   
4. [  522.640001]         (detected by 3, t=50042 jiffies)
   
5. [  522.640001] INFO: Stall ended before state dump start
   

Copy code

now I'm completely lost every time something different happens.

eu750

I have a log of what happens when booting, in the serial console the last messages are:
[   11.483256] *******************Try sdio*******************
[   11.526475] [mmc]: sdc1 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[   11.562615] [mmc]: sdc1 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[   11.562741] [mmc]: sdc1 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[   11.562877] [mmc]: sdc1 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 4 timing SD-HS(SDR25) dt B
[   11.563610] mmc1: new high speed SDIO card at address 0001
[   11.627925] bFWReady == _FALSE call reset 8051...
[   11.660409] bFWReady == _FALSE call reset 8051...
[   11.692280] bFWReady == _FALSE call reset 8051...
[   11.725573] RTL871X: rtw_ndev_init(wlan0)
[   11.736533] RTL871X: rtw_ndev_init(wlan1)
[   11.747687] *******************sdio init ok*******************
[   12.562460] systemd-udevd[186]: starting version 215

mattizz

Ok guys, I have managed to pinpoint the issue: it's the power supply. Even though I have used 5V 2A psu I think it's quality wasn't the best. When I used different power supply it worked. I don't know why orange pi is so picky about power supply, but I'm happy that I know what's going on.

eu750

mattizz replied at 2015-11-2 02:23
Ok guys, I have managed to pinpoint the issue: it's the power supply. Even though I have used 5V 2A  ...

Yes, I confirm: with a 10A power supply it boots like a charm!

liderbug

So a 38 gram OPi board and a 78,000 gram power supply...

So we're on our way ...

          OK, so what is a hairy smoking golfball?
          The idea of a hairy smoking golfballl was proposed long ago by IBM engineers who were trying to predict the future of computer development. Looking back at the development of computers from that point in time, it was noticed that the size of the CPU was getting smaller while the computing "horsepower" of the machines was increasing. By inventing processes that would allow the device to become smaller, many of the problems of early designs caused by the laws of physics involving transmission of electrical current through conductors in large computers were being overcome. As a result,engineering aimed at reducing the size of components in order to take advantage of the better performance of smaller devices.
         
The theory of the hairy smoking golfball is as follows:

First, the engineers decided that the ideal size of the CPU would be about the size of a golfball. The diameter of a golf ball is such that a computer built to that size would have conductors that were very short, which in turn would allow faster speed and more circuits in a smaller space.

Second, they considered that the golfball would be hairy because of the many hundreds of wires connecting the device to the outside world, such as for power and I/O devices.

Third, they observed that the device would be smoking because it would be disappating a very large amount of heat in a very small space.

It turns out that the engineers of long ago were right. Consider the current Intel Pentium 4 processor. The die at the center of the device is much smaller than a golfball. The device has hundreds of pins provided to attach it to its socket and through this to the power and I/O devices involved. And, one of the major problems of Pentium devices is the heat they create. Most PC's today have a cooling fan mounted right on the processor.

liderbug

OK, my 5v 10a power supply arrived. - I burned OrangePI_Jessie_Xfce.img and it booted.  I only have 1 USB port that works - I have to keep swapping keyboard/mouse.  Although maybe not a problem as I will only be doing ssh and vnc.  

What is the normal current draw of a OPi-PC?

Thanks
bug

nz1

I'm not sure how much current they draw but I did notice that when I bought my orangepi PC combo from aliexpress it came with a 3watt power supply which I thought was a little strange as they specify only 2amps to power the board. I'm not complaining though as I am powering a cpu fan and possibly in the future an external SSD drive through a USB port.