you can do different things, up to you to choose the one you prefer.
Best one is the first option.
1. Convert the WBFS partition into FAT32 using WBFS2FAT program (no, you won't lose your games, unless they are already corrupted because WBFS partition is easily corruptible without you knowing it)
or
2. backup all your games to another HDD (or on FAT32 or NTFS partition, that way you won't have to move them, it works on FAT32 and NTFS!)
Format WBFS to FAT32 (or move/expand the existing FAT32)
Put your wii games back on the new FAT32 if you want them on the first partition
You don't need a WBFS partition format at all, it's more stable using FAT32 or NTFS for Wii games.
or
or
3. Convert the WBFS partition to be extended/Logical.
or
4. if your FAT32 is also a primary partition (not an extended/logical), you can try to "cheat" the partition order by manually editing the Master Boot Record (MBR) of your drive and switch the order the partition are defined:
You can have 4 primary partitions.
Currently:
1-WBFS : starting at sector 64
2-FAT32 Starting at sector xxxxxxx
3-NTFS Starting at sector yyyyyyyyy
4-unaffected
What you want is :
1- FAT 32 starting at sector xxxxxxxxx
2- WBFS starting at sector 64
3-NTFS starting at sector yyyyyyyyyy
4-unaffected
You only change the order the partition type are listed, not their physical position on the drive.
It should work with homebrew, but it might be reverted or fixed if you connect it to a Partition manager program.
Worst scenario, it could be marked as bad on PC and requiring a format. (you can restore the original MBR to fix it)
Just for information:
"Primary" doesn't mean it's the first one.
Don't call it "primary, second, third"
Primary is a partition state. It can be either Primary or Logical.
You can have only 4 (primary or extended) partitions defined on the MBR.
1Primary - 2Primary - 3Primary - 4Primary
If you want more partitions, you need to use an extended partition which can contain more partitions inside.
1Primary - 2Primary - 3Primary - 4Extended [1Logical - 2Logical - Etc.]
or
1Primary - 2Extended[1Logical - 2Logical - 3Logical - 4Logical - etc.]
Usually, don't put an extended one before primary partitions. Primary should always be defined first.
Operating system must be on Primary.
If you don't need more than 4 partition, always use Primary.
WBFS partition format don't work great on Logical.
Nintendont and DIOS MIOS and Sneek require a Primary partition, and it should be the First defined partition from all available.
The "Active" flag is not needed at all. It is a flag used by BIOS on computers to know which partition you want to boot if you have multiple OS (linux/windowsXP1/WindowsXP2/etc.)