I'm migrating a product from jffs2 file system to ubifs. Previous jffs2 design contains 3 mtd partitions ( 2 ro and 1 rw ) . moving to ubifs - should I create : One mtd partition and 3 volumes...

what is 'erase block' in the mkfs.jffs2 utility? I couldn't find anything by googling, maybe because of my deficient search skills. Can anybody tell me what it is? Can anybody can describe what '...