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

Thu Aug 7 05:51:38 PDT 2014

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" ?

Cheers,

Markus

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

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