Hi,
Please have a look at /proc/partitions - do the SATA drives show up there?
A copy of the /proc/partitions, and the output of lspci (to see what SATA controller you have) and your boot messages would be helpful.
Dave
** Changed in: gparted (Ubuntu)
Status: Unconfirmed => Needs Info
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No drives detected
https://launchpad.net/bugs/69871