Detailed boot sequence
Any Linux distribution has long come with great splashscreens , and those that don’t boot with a desktop environment, usually omit the boot details.
If we want to re-enable verbose boot , we have to touch GRUB. In the file /etc/default/grub , change the line /etc/default/grub , change the line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
with
GRUB_CMDLINE_LINUX_DEFAULT=""
and then update the configuration to make the change effective:
sudo update-grub
The next restart will show the service detail during startup: