[yocto] problems with Init

[Maciej Borzecki]

On Tuesday 12 of August 2014 11:54:56 Chris Enrique wrote:
> 
> Hello,
> 
> i am currently working on a BSP for yocto in order to support a custom
> PowerPC board. In the meantime, i have setup all the config to generate a
> properly running 3.14 kernel and devicetree but still have some issues with
> the rootfs that is produced by yocto. I chose cpio.gz as image format for
> the rootfs which is converted via the u-boot mkimage-tool to a compatible
> .uRamdisk image.
> 
> 
> I already tested the kernel with a rootfs image which was not generated by
> yocto and it works fine.
> 
> Unfortunately, the yocto generated image seems to have problems with Init
> (target is core-image-minimal, my bsp doesn't modify anything except adding
> support for the target board by specifying kernel config and devicetree).
> 
> 
> Here you can see the kernel log at the point where init seems to fail:
> 
> console [netcon0] enabled
> netconsole: network logging started
> rtc-rx8581 0-0051: setting system clock to 2012-04-24 09:29:17 UTC
> (1335259757) Freeing unused kernel memory: 200K (c0525000 - c0557000)
> Failed to execute /init (error -13)
> INIT: version 2.88 booting
> Starting
> hwclock: can't open '/dev/misc/rtc': No such file or directory
> Stopping syslogd/klogd: no syslogd found; none killed
> Deconfiguring network interfaces... ifdown: interface lo not configured
> ifdown: interface eth0 not configured
> done.
> Sending all processes the TERM signal...
> Sending all processes the KILL signal...
> Unmounting remote filesystems...
> Deactivating swap...
> Unmounting local filesystems...
> /etc/rc0.d/S40umountfs: line 22: can't create /dev/null: Read-only file
> system reboot: Power down
> System Halted, OK to turn off power

Have you checked that /dev is mounted and udev is running?

> 
> 
> I assume, if i am able to generate a working kernel using yocto, the rootfs
> image automatically generated by yocto for target core-image-minimal is not
> supposed to fail?

--

Maciej Borzęcki
Senior Software Engineer Open-RnD Sp. z o.o.
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