I am running Ubuntu 14.04 server for Kiosk application.
The problem is when kiosk is starting , kernel shows some debug messages about stuff like USB port error and such things, and those ugly messages are being displayed over our plymouth splash screen.
Is there anyway to prevent such messages from showing during startup ? I already have "quiet splash" in my grub config file.
Ubuntu – Hide kernel messages in plymouth
grub2linux-kernelUbuntu
Best Answer
If you just want to suppress those messages, rather than fix them, you can try adjusting the
kernel.printk
sysctl, as outlined in man 2 syslog.The numbers are outlined thusly in kern_levels.h.
You probably want to show CRITICAL, ALERT, and EMERGENCY messages, so setting everything to
kernel.printk = 3 3 3 3
insysctl.conf
should only give you messages that require someone to do something to get the kiosk/machine to operate properly.