Install Ubuntu 18.04.5

Starting the installation

Mount the downloaded Ubuntu 18.04.5 .iso file
reboot your system
select a language (english is fine)

select “Install Ubuntu Server”

Configuration

Select your language

Configure the keyboard

press y

select yes if you have “ö”

press “ö”

select no for the weird e

Configure the network

select your primary network interface

enter your hostname

Set up users and passwords

enter the full name for the first user

enter the username

enter a complex password

Configure the clock

if the autoselected timezone is correct select yes, otherwise select no and chose the correct location

Partition disks

if you had a server before, select unmount partitions

select “Manual” and then set up LVs (LVM)

select your disk

partition the disk -1GB space (for /boot)

select “Primary”

select“Beginning”

set use as “physical volume for LVM” and select “Done setting up the partition”

select the “1 GB FREE SPACE”

select “Create a new partition”

continue with the 1 GB

again choose “Primary”

set “Ext4” and mount point “/boot”, you can also set the label as “/boot”

select “Configure the Logical Volume Manager”

select “Create volume group”

choose a name for your VG

and place it on your correct partition

select “Create logical volume”

select your VG

choose a name for your LV

then select the size (if you have the chance to extent your PV/VG, you should create a 10GB root and some fitting /etc /var /home mounts as well. in my case I cannot extent it so I chose to use all on /)

select your new LV

set “XFS” and the mountpoint “/”

it should look like this now, if so, write changes to disk