Fix the "Partition table entries are not in disk order" fdisk problem without deleting/re-creating partitions:

1. Run fdisk
   
   Code:

   fdisk /dev/your_disk

2. Press x for advanced options
   
   Code:

   Command (m for help): x

3. Press f to fix partition order
   
   Code:

   Expert command (m for help): f

   Your partitions will be in the order they are on your disk, so their numbers might change. That means you may need to adjust your grub menu entries, /etc/fstab, ...