[yocto] Building yocto for Odroid XU. No login after boot.

Fri Aug 8 04:41:24 PDT 2014

Problem solved. It was an error in the boot.ini (u-boot).

Changing the SERIAL_CONSOLE or kernel config params (like 
CONFIG_FHANDLE=y) did not change much. Problem was hidden in the boot 
params.

In the boot.ini I used

"setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 
0x42000000 uInitrd; bootz 0x40008000 0x42000000""

which caused the problem (although uInitrd was present).

I changed this line to

"fatload mmc 0:1 0x40008000 zImage; bootz 0x40008000"

and now I can log in (using systinitv or systemd, doesn't matter). Dunno 
why, but maybe the solution helps somebody.

Cheers,

Markus

On 07.08.2014 15:05, Gary Thomas wrote:
> On 2014-08-07 06:51, Dr. Markus Eich wrote:
>> Hi Gary,
>>
>> unfortunately, this didn't help much. I have compiled the kernel with 
>> the CONFIG_FHANDLE=y.
>> I have also set all configs given in
>>
>> http://dominion.thruhere.net/koen/cms/recommended-kernel-config-options-for-a-modern-angstrom-system 
>>
>>
>> To pinpoint the error down, I have tried the kernel build from Yocto 
>> on a LINARO distro image. I have just replaced the kernel and the 
>> modules build with yocto.
>>
>> And voila: I have a login promt. If the complete distro is build with 
>> Yocto (the whole rootfs), I cannot log in.
>>
>> Has setting the SERIAL_CONSOLE = "115200 ttymxc0"  the same effect as 
>> giving the console param for the u-boot?
>>
>> i.e. I have something like
>>
>> #setenv bootrootfs "console=tty1 console=ttySAC2,115200n8 
>> root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait rw" ?
>
> Setting SERIAL_CONSOLE tells the build system (Yocto) what device to
> use as the main console.  A login prompt will appear on this device
> after bootup.  The 'console=XXX' settings to the kernel (from U-Boot)
> tell the kernel where to send messages, especially the bootstrap 
> messages.
> These are subtly different uses but they should match.
>
> In your case, I think you should have
>   SERIAL_CONSOLE = "115200 ttySAC2"
>
>> On 06.08.2014 18:26, Gary Thomas wrote:
>>> On 2014-08-06 10:13, Dr. Markus Eich wrote:
>>>> Dear all,
>>>>
>>>> I am trying to build an image for the Odroid XU, featuring the 
>>>> Samsung Octa 5 CPU
>>>>
>>>> I managed to build everything needed (modules, kernel, u-boot, etc.)
>>>>
>>>> The recipes can be found at: 
>>>> https://github.com/MarkusEich/meta-odroid.
>>>>
>>>> The last problem (hopefully last :-) I have is that I cannot log in 
>>>> after the kernel is loaded via UART console
>>>>
>>>> Maybe init.d or systemd is not setup properly?
>>>>
>>>> I am using the console-image-minimal.bb from meta.
>>>>
>>>> Here is the last console output. It seems that the kernel is loaded 
>>>> (including modules) and the rootfs is properly mounted. There is no 
>>>> error, there is simply no login or shell.
>>>>
>>>> Any ideas why I cannot login? Its a bit poking in the dark ATM.
>>>
>>> If you are using systemd, make sure your kernel is built with 
>>> CONFIG_FHANDLE=y
>>> Without this, systemd won't start a session on a serial port.
>>>
>>> If you're using the old sysvinit, make sure your console settings
>>> are correct.  These normally live in your ${MACHINE}.conf and look
>>> something like this:
>>>   SERIAL_CONSOLE = "115200 ttymxc0"
>>>
>>> You might also want to remove 'quiet' from your kernel bootargs,
>>> at least until you get things settled a bit more.
>>>
>>>> ==
>>>>
>>>> [    5.722795] CPUFREQ of CA7  L5 : 962500 uV
>>>> [    5.726871] CPUFREQ of CA7  L6 : 950000 uV
>>>> [    5.730947] CPUFREQ of CA7  L7 : 950000 uV
>>>> [    5.735025] CPUFREQ of CA7  L8 : 950000 uV
>>>> [    5.739095] CPUFREQ of CA7  L9 : 950000 uV
>>>> [    5.743146] CPUFREQ of CA7  L10 : 950000 uV
>>>> [    5.747336] CPUFREQ of CA7  L11 : 950000 uV
>>>> [    5.751583] CPUFREQ of CA15 L0 : 1362500 uV
>>>> [    5.755663] CPUFREQ of CA15 L1 : 1362500 uV
>>>> [    5.759826] CPUFREQ of CA15 L2 : 1225000 uV
>>>> [    5.764012] CPUFREQ of CA15 L3 : 1175000 uV
>>>> [    5.768129] CPUFREQ of CA15 L4 : 1137500 uV
>>>> [    5.772313] CPUFREQ of CA15 L5 : 1112500 uV
>>>> [    5.776474] CPUFREQ of CA15 L6 : 1075000 uV
>>>> [    5.780638] CPUFREQ of CA15 L7 : 1037500 uV
>>>> [    5.784800] CPUFREQ of CA15 L8 : 1000000 uV
>>>> [    5.788962] CPUFREQ of CA15 L9 : 975000 uV
>>>> [    5.793010] CPUFREQ of CA15 L10 : 937500 uV
>>>> [    5.797201] CPUFREQ of CA15 L11 : 912500 uV
>>>> [    5.801368] CPUFREQ of CA15 L12 : 900000 uV
>>>> [    5.805526] CPUFREQ of CA15 L13 : 900000 uV
>>>> [    5.809689] CPUFREQ of CA15 L14 : 900000 uV
>>>> [    5.813822] CPUFREQ of CA15 L15 : 900000 uV
>>>> [    5.818018] CPUFREQ of CA15 L16 : 900000 uV
>>>> [    5.822173] CPUFREQ of CA15 L17 : 900000 uV
>>>> [    5.826338] CPUFREQ of CA15 L18 : 900000 uV
>>>> [    5.830583] fout_apll[900000000]
>>>> [    5.836287] S divider change for DFS of MIF block
>>>> [    5.984276] init_volt[975000], freq[800000]
>>>> [    5.987809] ALSA device list:
>>>> [    5.989956]   #0: Odroid-max98090
>>>> [    5.993533] Freeing init memory: 256K
>>>> [    5.996898] Write protecting the kernel text section c0008000 - 
>>>> c09e2000
>>>> [    6.003931] rodata_test: attempting to write to read-only section:
>>>> [    6.009728] write to read-only section trapped, success
>>>> [    6.055010] systemd-udevd[1299]: starting version 204
>>>> [    6.350360] EXT4-fs (mmcblk0p2): recovery complete
>>>> [    6.356827] EXT4-fs (mmcblk0p2): mounted filesystem with ordered 
>>>> data mode. Opts: (null)
>>>> INIT: version 2.88 booting
>>>> Starting udev
>>>> [    6.880415] udevd[1376]: starting version 182
>>>> [    7.075108] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
>>>> Starting Bootlog daemon: bootlogd.
>>>> [    7.369381] max77802_rtc_read_time: 114/7/6 16:10:3(3)
>>>> INIT: Entering runlevel: 5
>>>> Configuring network interfaces... ifconfig: SIOCGIFFLAGS: No such 
>>>> device
>>>> [    7.431705] max77802_rtc_read_time: 114/7/6 16:10:4(3)
>>>> Starting syslogd/klogd: done
>>>> Stopping Bootlog daemon: bootlogd.
>>>>
>>>> ==
>>>>
>>>>
>>>>
>>>>
>>>
>>
>

-- 
Dr.-Ing. Markus Eich

  Senior Researcher
  Marine Inspection Robotics
  Space Robotics

  Besuchsadresse der Nebengeschäftstelle:
  DFKI GmbH
  Robotics Innovation Center
  Robert-Hooke-Straße 5
  28359 Bremen, Germany

  Postadresse der Hauptgeschäftsstelle Standort Bremen:
  DFKI GmbH
  Robotics Innovation Center
  Robert-Hooke-Straße 1
  28359 Bremen, Germany

  Tel.:     +49 421 178 45-4105
  Zentrale: +49 421 178 45-0
  Fax:      +49 421 178 45-4150 (Faxe bitte namentlich kennzeichnen)
  E-Mail:   markus.eich at dfki.de

  Weitere Informationen: http://www.dfki.de/robotik
  -----------------------------------------------------------------------
  Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH
  Firmensitz: Trippstadter Straße 122, D-67663 Kaiserslautern
  Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster
  (Vorsitzender) Dr. Walter Olthoff
  Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes
  Amtsgericht Kaiserslautern, HRB 2313
  Sitz der Gesellschaft: Kaiserslautern (HRB 2313)
  USt-Id.Nr.:    DE 148646973
  Steuernummer:  19/673/0060/3
  -----------------------------------------------------------------------