The reason of this problem is that in 5.8 the default amount of nr_uarts has been changed from 4 to 32. This is causing ttyS0 to be remapped to ttyS4, breaking the user-space.
The solution is to set back the number of UARTS to 4. I tried to boot the kernel adding 8250.nr_uarts=4 to the kernel boot parameters in GRUB and /dev/console is now working correctly. I'll send a fix for this to restore the previous behavior by default in the kernel and avoid breaking the user-space. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896604 Title: Groovy kernel (5.8.0-1004-aws) creates broken /dev/console on i3.metal instances To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1896604/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
