Ubuntu virtual machine very slow boot time

Question

I have a VM running Ubuntu 16.04 on a Windows 7 host. It used to start up very quickly, but ever since I re-partitioned the disk to allow for more space using GParted, it takes about a minute to get to the login screen once I start the vm from virtual box. I have given a large amount of swap space.

In my Virtual Box settings under Storage > Controller: IDE the disk is currently marked 'Empty', but all my data loads just fine when it does eventually boot. If I change this .iso to the ubuntu.iso, it is then that I do not have my data available. What else can I do to diagnose the problem / does anyone know what can be done?

$ sudo blkid
 /dev/sda1: UUID="8563..." TYPE="ext4" PARTUUID="938..-01"
 /dev/sda5: UUID="6696..." TYPE="swap" PARTUUID="938..-05"

$ cat /etc/fstab
<file system><mount point> <type> <options> <dump> <pass>
 / was on /dev/sda1 during installation
 UUID="8563..."                   /         ext4   errors=remount-ro     0 1
 swap was on /dev/sda5 during installation
 UUID="0dd5..."                   none      swap   sw     0 0 

$free -h 
       total    used    free    shared    buff/cache    available
Mem:   9.8G     1.4G    3.6G    42M       4.8G          8.0G
Swap:  0B       0B      0B

$ swapon
$     

Solution

from the comments...

Edit your question to include the terminal output of sudo blkid and cat /etc/fstab and free -h and swapon.

Edit /etc/fstab to make the UUID match the one from blkid.

sudo -H gedit /etc/fstab

Change this:

UUID=0dd5...   none   swap    sw    0   0

To this:

UUID=6696...   none   swap    sw    0   0

Then:

sudo swapon -a # to turn on swap

free -h # to see memory and swap

sudo swapon # to see swap partition info

Comments

[David Anekstein]

1000 thank you's for this @heynnema. How can this be prevented when partitioning in the future?

[Boris Hamanov]

@DavidAnekstein just remember that if you delete/recreate your swap partition, that the UUID will change, and you must edit /etc/fstab.