Added the kernel parameters to grub:
$ grep 'debug initcall_debug earlycon=efifb' /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash debug initcall_debug
earlycon=efifb"
$ sudo update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/99_breeze-grub.cfg'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found theme: /boot/grub/themes/breeze/theme.txt
Found linux image: /boot/vmlinuz-5.4.0-48-generic
Found initrd image: /boot/initrd.img-5.4.0-48-generic
Found linux image: /boot/vmlinuz-5.4.0-47-generic
Found initrd image: /boot/initrd.img-5.4.0-47-generic
Found linux image: /boot/vmlinuz-5.4.0-45-generic
Found initrd image: /boot/initrd.img-5.4.0-45-generic
Found linux image: /boot/vmlinuz-5.4.0-42-generic
Found initrd image: /boot/initrd.img-5.4.0-42-generic
Found linux image: /boot/vmlinuz-5.4.0-40-generic
Found initrd image: /boot/initrd.img-5.4.0-40-generic
Found linux image: /boot/vmlinuz-5.3.0-51-generic
Found initrd image: /boot/initrd.img-5.3.0-51-generic
Adding boot menu entry for UEFI Firmware Settings
done
I've rebooted without choosing the kernel, so "5.4.0-48" was chosen.
Attached file is what could be seen when the booting hanged.
** Attachment added: "Screen, when booting hangs. With kernel parameters "debug
initcall_debug earlycon=efifb""
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1888779/+attachment/5419084/+files/linux-5.4.0-48-kernel-debug-output-1.jpg
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1888779
Title:
Can't boot with Linux 5.4.0.*
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1888779/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
