How to resize a LUKS root partition?

How do I increase the size of the partition in which Manjaro KDE 22 is installed?

It is a LUKS installation but there is some unallocated space after the partition on which LUKS enabled Manjaro is installed.

Do I simply increase the size of the (Luks) manjaro partition? KDE Partition manager is allowing it but I haven’t done it yet.


The KDE Partition Manager is capable of resizing LUKS partitions. This is, in theory, completely safe. However, due to the nature of messing with partitions and LUKS especially, I recommend taking a backup beforehand, and running the operation from a live USB.