Expanding a drive (LUKS and normal) Normal drives Most of the times this command will work sudo growpart /dev/nvme0n1 1 If not you need to find out what [Drive] is supposed to be, examine the following commands output sudo lsblk In the following example it would be nvme0n1p1 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT nvme0n1 259:1 0 20G 0 disk ├─nvme0n1p1 259:2 0 20G 0 part / └─nvme0n1p128 259:3 0 1M 0 part Run the commands sudo growpart /dev/[Drive] 1   LUKS drives First make sure that the drive is opened and mounted. To find out what [Drive] is supposed to be, examine the following commands output sudo lsblk In the following example it would be crypt-sdf NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT nvme0n1 259:1 0 20G 0 disk ├─nvme0n1p1 259:2 0 20G 0 part / └─nvme0n1p128 259:3 0 1M 0 part nvme1n1 259:0 0 50G 0 disk └─crypt-sdf 253:0 0 30G 0 crypt /mnt/sda Run the commands sudo cryptsetup resize [Drive] sudo resize2fs /dev/mapper/[Drive]