Installing the LWP

Before you begin

Make a backup of your data stored on the disk of your PC, if any. You can use a usb device or your home directory. Your home directory is network storage and does not get touched during the installation.
If you have sudo rights, you should know where you’ve put your files. If you don’t have sudo rights, you can only place files in /mnt/D/ and /var/tmp or maybe in /tmp if you never restart your PC.
Some of you will have extra disks in your PC, these will not be touched during the installation. If and how these extra disks are mounted differs greatly. If you have sudo rights, you can add them to the fstab yourself after the installation. Ask us to add them if you don’t.
The installation of the LWP will require 80GB of disk space. A dual-boot installation will require at least 250GB of disk space.
After you've made your backups, restart your PC.

(re)Install the LWP

On most systems, booting from the network is configured as default. If that is not the case on your system, you can press F12 directly after you turn on your PC to boot from the network.

The ipxe menu for LWP only.

• From the menu, choose Install LWP.
  
• That's it. The rest happens automatically.
  

When it’s done the login screen will appear and you can login.

The LWP login screen.

(re)Install dual-boot UWP/LWP

If only the LWP has to be (re)installed follow the procedure for (re)Install the LWP, but the Install LWP menu-item is in the Maintenance sub-menu.

The ipxe maintenance sub menu for dual-boot.

The servicedesk can help you (re)install the UWP on your machine.

Note: Reinstalling the UWP will also require reinstalling the LWP. Reinstalling the LWP does not require reinstalling the UWP, as long as there is enough disk space for the LWP to fit.

Not enough space

LWP only

Wipe the system disk

First make sure you have not forgotten to backup any data on the disk. In the network boot menu (press F12 directly after turning on your PC) from the Maintenance sub-menu, select Parted Magic to start it.

The ipxe maintenance sub menu for dual-boot.

We are going to create a new and empty partition table for the disk. If it didn't start automatically (it should) start GParted by opening the "Partition editor" program from the desktop.

Example partitions LWP only PC.

Make sure you have your system disk selected in the top right corner; It should be selected by default. Go to Device and select Create Partition Table.

Create partition table.

Select gpt as the new partition table type, click Apply and you're done. The disk is now completely empty and ready for a fresh installation.

Dual-boot

Resize the UWP partition

If you’re familiar with resizing partitions and/or not afraid of losing anything because you make backups like you're supposed to, consider resizing the UWP NTFS partition if you have enough free space there. You can use Parted Magic for this.
In the network boot menu (press F12 directly after turning on your PC) from the Maintenance sub-menu, select Parted Magic to start it.

The ipxe maintenance sub menu for dual-boot.

Resize the NTFS partition using GParted (should start automatically, else open the "Partition editor" program from the desktop) so you have at least 80GB of free space to install the LWP in. This 80GB should include the current lwproot partition and the swap partition if they exist, because those are removed and the space reused.

Example partitions dual-boot PC.

A more detailed explanation on Parted Magic can be found here.
After resizing is done, restart your system and start the LWP installer, the installation should now continue without any problems.