Help understanding partitions on Ubuntu

Question

After having issues installing Ubuntu on a computer i believe that i have created several partitions rather than simply one Ubuntu OS. What I need is for there to be only one instance of Ubuntu on this computer with all of the available memory.

The output of sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL

NAME FSTYPE SIZE MOUNTPOINT LABEL sda 465,8G
├─sda1 vfat 512M /boot/efi
├─sda2 ext4 461,5G /
└─sda3 swap 3,8G [SWAP]
sr0 624M

output from gparted

I am hoping there is a way to simply merge the partitions without losing anything, but at worst I could try reinstalling Ubuntu again if needed, though some advice on how to not do this again would probably be needed.

Thanks in advance

Answer 1

You're confusing disk partitions and physical memory. Your disk partitions look fine, although your swap partition may be a little small, for the limited physical memory that you have installed.

The problem that you're having is that you've requested that the guest OS use more of physical memory than what's available. You either need to reduce the 4096GB RAM for the guest OS, or install more physical memory.

Cheers, Al