Either chose the original, out-of-the-factory configuration, which boots Ubuntu 9.04 from the internal NAND, this is a jsff2 - formatted file system and takes around 2 minutes to boot.

Or the UBIFS version, were we have configured the plug to boot a slightly trimmed-down version of Ubuntu 9.04 from a UBIFS file system on the internal NAND.  The Ubuntu system is somewhat more up-to-date, and offers a significant decrease in the time taken to boot around 25 seconds.

The SheevaPlug is a development platform, targeted for use as a plug computer, and designed to run network-based software services. It features a Kirkwood Series processor with an embedded Marvell Sheeva 1.2 GHz CPU equipped with 512 MB of FLASH and 512 MB of DRAM.