Ubuntu 16.04 LTS booting time longer than usual

Question

My device is taking longer than usual to start up and the logo is not appearing.

The systemd-analyze blame output http://pastebin.com/M8gV7Hn8

Answer 1

Optimize Startup

You can optimize your system startup process by looking at the lines that are executed on startup. Pick out applications that you might not need or don't want to use.

Also, if the system is hanging up on a process use this described feature to identify which process is taking a long time, then address or fix the offending process.

An example of system hanging

I had lived with a long startup process for a while. I turned off the splash and noticed that during some maintenance my swap partition UUID had changed (an /etc/fstab entry). In this case I edited out the swap assignment to that process. When it cured the delay, I replaced the UUID with a current active partition to cure the delay and have swap.

Locate the problem line

To see the lines that are executing, edit your Grub /etc/default/grub and remove the quiet splash from the GRUB-CMDLINE_LINUX_DEFAULT configuration. The line to change is highlighted in bold text.

Change from:

# If you change this file, run 'update-grub' afterwards to update               
# /boot/grub/grub.cfg.                                                          
# For full documentation of the options in this file, see:                      
#   info -f grub -n 'Simple configuration'                                      
GRUB_DEFAULT="saved"
#GRUB_HIDDEN_TIMEOUT="0"                                                        
GRUB_HIDDEN_TIMEOUT_QUIET="true"
GRUB_TIMEOUT="15"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

Change to:

# If you change this file, run 'update-grub' afterwards to update               
# /boot/grub/grub.cfg.                                                          
# For full documentation of the options in this file, see:                      
#   info -f grub -n 'Simple configuration'                                      

GRUB_DEFAULT="saved"
#GRUB_HIDDEN_TIMEOUT="0"                                                        
GRUB_HIDDEN_TIMEOUT_QUIET="true"
GRUB_TIMEOUT="15"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX=""

Then execute:

$ sudo update-grub

Now reboot.

You might find you're running a service or services you can do without. Or you may find you'd prefer to contend with the time it takes in loading a service over removing it.

After you have identified and fixed the problem causing the delay you can return the default screen by adding the quit and splash modes to your grub.