I see this bug again in Ubuntu 20.04. The error appear briefly just before GRUB show the boot menu
uname -a ouptut: Linux ThinkPad-E550 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
I see this bug again in Ubuntu 20.04. The error appear briefly just before GRUB show the boot menu
uname -a ouptut:
Linux ThinkPad-E550 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux