credits to
papampifullzero, do you mind putting this link in original post please, i bet it will be useful to lots of users; thanks

Thanks for mentioning me and giving the credits,
I added an easier solution to that post
for those who dont need/want the swap and dont need to expand their partition.
Option2 :
If you have 16GB USB/SSD/HDD and dont want/need swap partition.
Just open /etc/fstab with
gksudo gedit /etc/fstab
and add a # before the UUID in swap line
# swap was on /dev/sda5 during installation
#UUID=cdba7b01-5ae6-4104-9a6e-f723b8bd87ac none swap sw 0 0
reboot and have fun.
This is osnwt's suggestion see:
Wow. Thank you dbolivar!
The slow boot time has always been my only issue with nvOC. Especially when I've got a sick riser that I'm hunting for. I commented out the swap line in /etc/fstab and BAM! It was like a rocket ship booting up.
SO loving this OS now. Even more than before! Thank you again FullZero for this awesome OS.
Great!! But don't thank me for identifying this invalid entry in /etc/fstab, it was the merit of another user, as I mentioned, but I forgot his username! Nevertheless, Fullzero is aware of this, and said it will be fixed in v19.

You can do this on any nvOC or rxOC rig by entering the following in the guake terminal:
gksu gedit /etc/fstab
then commenting out this line by appending a # to the front of it changing:
UUID=cdba7b01-5ae6-4104-9a6e-f723b8bd87ac none swap sw 0 0
to:
#UUID=cdba7b01-5ae6-4104-9a6e-f723b8bd87ac none swap sw 0 0
then close the gedit and reboot.
I applied this change to the v0019_rc a long time ago when osnwt brought it to my attention:
https://bitcointalk.org/index.php?topic=1854250.msg20492062#msg20492062
Sorry if this was already fixed or is a duplicate report. Didn't read the thread for a long time.
I found that my nvOC system boots too long (around 2 minutes). The cause of that is a swap partition in /etc/fstab that does not exist on USB drive (was /dev/sda5 at install time). After commenting it out a 120 seconds swap disk mount wait time has gone.
Do NOT take credit for other members ideas / fixes.