Why doesn't my bootcamp drive mount in 10.9.1 mavericks?

Why doesn't my bootcamp drive mount in 10.9.1 mavericks?

the drive case needs drivers and or firmware. Happens all the time esp. with many makes and vendors due to the bridge it uses, that does the SATA drive <=> to FW/USB/etc to your Mac and whether you use FW800/400 or USB2 or even eSATA (w/ a PCIe SATA controller).
If you are using native SATA and an PCIe SATA controller.... tell us! and the vendor needs to provide drivers that are not included with Lion. Lion just 'broke' support it has had with Snow Leopard.
As for RAID - a RAID created with SL will not always support Lion for booting or mount. Happened with 10.3.9 too. And SL would not install on a RAID created with Leopard. See the pattern emerging?

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