Parted can not grow the cluster size of FAT file systems (yet). This places restrictions on resizing and copying partitions. This is often quite bizarre, because Parted can convert file systems between FAT16 and FAT32, which have different restrictions on what the cluster size can be.
For example, lets say have a 100Mb partition with a cluster size 4k. This partition can't be resized to 400Mb, because the cluster size would need to be changed to 16k. However, it can be resized to 600Mb if you use FAT32. The reverse is true for 600Mb FAT32 file systems.
Note: when you copy or resize a file system, Parted will ask you if you want to convert between FAT16 and FAT32 (if it is possible). Therefore, if you just want to convert a partition to FAT32 (without resizing), you can just resize the partition to the same size.
Go to the first, previous, next, last section, table of contents.