systemd didn't generate a "dev-ttySTM0.device" unit, and therefore stopped getty

[SMich.1]

Hi, 

i moved to new ecosystem v2.0 "dunfell" and added my layers of wifi,camera, openCV and python packages from old Yocto ecosystem. 

first boot serial-getty@ttySTM0 working fine. 

on second boot it died and in /var/log/messeges i got: 

Unit serial-getty@ttySTM0.service is bound to inactive unit dev-ttySTM0.device. Stopping, too

I can't understand what i did wrong in Yocto layers that making this bug. 

 did someone had this issue?

[Olivier GALLIEN]

Hi @SMich.1​ 

Did you take complete and consistent ecosystem v2.0 "dunfell" components version ?

I understand you keep openCV and python package version similar to old "thud" version, right ?

Please double check there is no compatibility problem. I would recommend to upgrade on dunfell version for all those packages.

Hope it help,

Olivier

[SMich.1]

1. i using all new components of dunfell
2. i switched to new package versions of .

i did added new distro and machine. but everything else working

[SMich.1]

what i can check in yocto layers that may help me?

[SMich.1]

I found that in file /extlinux/extlinux.conf ihave:

APPEND root=PARTUUID=491f6117-415d-4f53-88c9-6e0de54deac6 rootwait rw console=ttySTM0,115200

but still the console=ttySTM0,115200 not passed to Getty service ...

so I just did:

vi /boot/extlinux/extlinux.conf

added space after 115200

resaved the file and now the ttySTM0 passed to Getty service.

First of all the problem was not with the v2.0 "dunfell" . it something with my yocto layers config . somebody can help?