Public bug reported: This is Pi specific. The problem is that in older releases where we use u-boot in the Ubuntu raspi images, flash-kernel uses default kernel commandline options 'quiet splash' (from /usr/share/flash- kernel/default/flash-kernel) which end up hard-coded in /boot/firmware/boot.scr, specifically this line:
setenv bootargs " ${bootargs} quiet splash" This line basically extends the kernel commandline options specified in /boot/firmware/cmdline.txt. On Pi, there should only be one place to specify kernel options and that's cmdline.txt, u-boot/flash-kernel should not modify or extend these options. We recently had a customer issue where we needed to enable kernel logging over the serial console which required modification of cmdline.txt *and* rebuilding boot.scr to drop 'quiet splash'. We should not have to touch boot.scr for this. ** Affects: flash-kernel (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2073835 Title: Default kernel commandline options on Raspberry Pi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/flash-kernel/+bug/2073835/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs