> # this was a mistake... That's not an unfixable mistake: sda3 is at the end of the partition table, so if it's deleted, sda2 can be safely resized offline. F

> # this was a mistake... That's not an unfixable mistake: sda3 is at the end of the partition table, so if it's deleted, sda2 can be safely resized offline. For example, parted /dev/sda rm 3 parted /dev/sda "resizepart 2 -0" resize2fs /dev/sda2 # for ext2/3/4 And then you can create a swap file or volume on sda2, so long as it isn't on btrfs.