[yocto] Initramfs and systemd problems

[Jukka Rissanen]

Hi Ross,

On 12.02.2013 11:35, Ross Burton wrote:
> On Tuesday, 12 February 2013 at 09:14, Jukka Rissanen wrote:
>> I am building a small network appliance for tethering purposes.
>> I do not need graphics so I removed X support, also added
>> systemd from meta-ivi and upgraded connman into latest
>> 1.11 version, and also did some minor tweaks here and there.
>>
>> In beagleboard, my setup works just fine.
>> In Intel NUC device, the system refuses to boot properly.
>> The reason is the init-live.sh (http://init-live.sh) script in initramfs image,
>> it expects the USB stick to be present in /media/xxx directory.
>>
>> Because the base system uses systemd, the initramfs is
>> also using systemd but there is some things missing and
>> system will not automount the USB stick into /media.
>>
>> Is there any possibility to avoid using systemd in initramfs
>> i.e., use the udev package only, or is the only option to
>> tweak systemd setup in initramfs? Or any other suggestion
>> how to fix this?
>
>
> I'd noticed that systemd's udev is failing to live-boot too in oe-core master (which now has integrated systemd).
>
> I don't think its possible to build a second udev for the initramfs, and this is clearly a bug so we should figure out why it doesn't work.  Do you have any hints in your debugging as to what is broken?
>
> Ross

At least the systemd version in initramfs is missing

/etc/udev/rules.d/automount.rules
/etc/udev/scripts/mount.sh

that seem to be related to this issue.

Also the initializations found in /etc/init.d/udev
in the standard poky are missing in systemd version
(not sure if these are needed).


Cheers,
Jukka