Hi there, Is there any way with Yocto to turn down the log level of what’s outputted to the console? Trying to edit configs or do small tests can get frustrating quickly when you have dmesg suddenly deciding to drop a log message or two on your display

I don’t set it in a recipe, I set it in the machine. But that is CMDLINE_SERIAL. Kinda hard to help if you don’t show me your layer or the error message + log. The only references to CMDLINE are those, so it shouldn’t break because of mender… meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb:…

Do cat /proc/cmdline and see if console=tty… shows up. Also you should disable the serial terminal services: systemctl disable getty@ttyDevice Regards to yocto, it depends what hardware platform you are using. cmdline.txt is used on raspberry pi to send kernel arguments. If you have that, check i…

What i’m trying to do is turn the log level down to stop the flooding of messages in the console (apologies if that wasn’t made clear enough in the initial post), but I haven’t been able to find a way to do that in Yocto at the moment. I initially tried making a bbappend to the generator of the cmdl…

just do loglevel=x in cmdline.txt. CMDLINE_SERIAL=“loglevel=x” loglevel= All Kernel Messages with a loglevel smaller than the console loglevel will be printed to the console. It can also be changed with klogd or other programs. The …

cmdline.txt Has no way of modifying it through meta-raspberrypi, i’m looking for a way to do it in a recipe of my own

[image] emilm: CMDLINE_SERIAL Yes it does. I mean CMDLINE , sorry You use this in your distro / machine config. Check meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb for reference.

Yep, that’s what I tried initially, but that would end up stopping mender from generating its images and artifact files for some reason. Looking at meta-mender-raspberrypi it seems they have their own bbappend file for it doing rootfs allocation. Could it be cancelling each other out?

Depends what distro you are on. meta-mender from kirkstone does not mess with cmdline but dunfell does. mendersoftware/meta-mender/blob/dunfell/meta-mender-raspberrypi/recipes-kernel/linux/linux-raspberrypi-mender.inc CMDLINE_remove = "root=/dev/mmcblk0p2" CMDLINE_append = " root=\$…

Apologies: I’m using the Kirkstone branch of Yocto & meta-mender ( which also does modify the CMDLINE ) I’m using the default poky distro as the base I made a bbappend file for meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb in my own layer, which appends " loglevel=1 " to the full cmdline.txt…

Ok, thing is that it looks like stock for me with kirkstone, so how does your cmdline.txt look like?

It’s near enough thes tock cmdline.txt that gets generated , has /dev/mmcblk0p2 as the initial rootfs, doesn’t mention a console argument, has the rootfs type, etc. Don’t have it with me right now but that’s basically what it was. Add loglevel=1 to the end of that when I tried the .bbappend method, …

Stop dmesg outputting to tty display after logging in (turn down loglevel)

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Stop dmesg outputting to tty display after logging in (turn down loglevel)

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