When formatting a hard disk with the Linksys web interface, 3 partitions are created on the disk.
/dev/sda1 fileshare partition, maximum diskspace that is left after sda2 & sda3 /dev/sda2 configuration partition/system file partition, approx. 100 megabytes. /dev/sda3 swap partition, 55 megabytes.
(sda is the device containing root, sdb is any second device)
(Modified from /CustomSizedPartitions )