How to re-size root partition without loosing any data if the root partition is immediately followed by swap partition

Ser Olmy · 09-25-2019, 11:49 AM

Your root partition is /dev/sda3, and your swap partition is /dev/sda2. In other words, your root partition is not immediately followed by a swap partition, so deleting /dev/sda2 will not free up space that could be used to extend /dev/sda3.

mrmazda · 09-25-2019, 12:06 PM

sda2 can be deleted, sda3 moved to the start of freed space, then sda3 can be extended to use the freespace following.

To keep the names and partitions in logical order, sda2 could be deleted and recreated to a small size, e.g. 8MB, sda3 moved to start of freed space, then sda3 extended to use the freespace following.

With either approach, bootloader should be updated after the reconfiguration, and fstab's swap entry.