G'day
@sah0724 
1. Is this a different laptop to the one you were using for Ubuntu here?
https://www.linux.org/threads/installed-ssh-on-debian-how-to-remote-login.21850/
On that one, you had, not Debian, but Ubuntu, installed.
You also need to start learning the names, it is Lubuntu, not Lunbuntu, and Ubuntu, not Unbuntu - one "n" in each.
2. Is there a Windows on this laptop (and if so, which one - 7, 8, 10), or is it solely for Lubuntu?
With your first Post, you are trying to use two different methods for two different systems to build partitions, and it will not work, but I'll get back to that in a moment.
You are likely using a 32 GB USB stick (flash drive), which only shows as 30GB (manufacturer idiosyncrasies I won't go into here).
You will likely have downloaded a Lubuntu .iso and burned it to a stick using perhaps Rufus, Etcher, Unetbootin or other means.
(Which one).
That method will have taken your lubuntu .iso
(probably about 1.6GB in size, is that right?), and despite that size, it has dedicated the whole of your 32GB stick to that one .iso, leaving no additional space.
That is normal.
Then, in your attempt to install, if you are following the installer correctly, it will present to you an option of installing the Linux bootloader to a particular drive or partition.
This would normally default to perhaps /dev/sda if you have no Windows, or perhaps /dev/sda2 if you have Windows in /dev/sda1. /dev/sdb may come into the picture if you have more than one drive in the laptop, eg an SSD drive and a SATA drive.
You are likely trying to tell it to install to your USB stick, which will be /dev/sdb or /dev/sdc depending on the circumstances I described above (with or without Windows)..
And of course, it can't because there is no space available on the USB drive.
3. Does that sound possible?
You need to identify where you want to install it to correctly.
So you are going to have to tell us more about where you are trying to install it to, and the configuration of the computer.
4. What is the brand name and model of your computer? And how old is it?
For example mine is a Dell Inspiron 17 5000 Series with 16 GB of RAM, purchased new last July.
REGARDING YOUR FIRST POST
Boot - 3 gigs
Swap 1- gig
Extended - everything else 26 gigs
The method you are describing is used to install on a computer that is
BIOS-MBR
And you could not even do it with the above if you did not have a Logical Partition set up under the Extended Partition.
BIOS is also known as CSM (Compatibility Support Mode) or Legacy.
MBR is for Master Boot Record.
I also was asked to build a boot/efi partition
Asked by whom? The installer or where?
If you have to build boot/uefi it is because you are not on BIOS - MBR, and more likely on UEFI, perhaps UEFI - GPT.
See how many of the above questions you can answer, and we will try to help further.
@poorguy - Tom, can you save me time and tell me does Lubuntu use the standard (Ubuntu) Ubiquity Installer, or is it something different with the LXDE-side?
Cheers Mate
Cheers All
(Wizard disappears in a puff of smoke, off to partake of his favourite brew)
