Very important to set verbose output for Ubuntu User

I often mess up with Ubuntu System so much that I can’t manage to boot the system. I always end up with being stuck at the splash screen with no clue what is going on in the background. So, I suggest that for every ubuntu user you should turn on verbose output during the boot. This can be achieved by:

1. open /etc/default/grub, change quiet splash to empty string for `GRUB_CMDLINE_LINUX_DEFAULT`.

   # GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
   GRUB_CMDLINE_LINUX_DEFAULT=""

2.  Update to take effect:

   sudo update-grub

    

Reference:

http://askubuntu.com/questions/248/how-can-i-show-or-hide-boot-messages-when-ubuntu-starts