Hi PCPiranha,
Thanks for this this information. I have a similar problem. My LinkStation Live (HS-DH500GL) stopped working (it powers of automatically and starts beeping within minutes after I turn it on) and I pulled out the hard drive and plugged it into a external hard drive enclosure to retrieve data from it. I got UFS Explorer but when I connect the enclosure to a windows PC through USB it does not detect the drive.
I tried to read data from this hard drive using a Ubuntu boot disk on a PowerPC Mac. Ubuntu detects the 4 partitions but was able to mount only one partition. It was unable to mount the main XFS partition which is approximately 465GB. When I try to mount this partition it gives the 'mount: /dev/sdb6: can't read superblock' error.
I also tried updating the firmware on the linkstation box to the latest one using a Windows PC but it did not work. Everything kept freezing and soon the unit would power off with a beeping sound.
Please let me know if anyone has any suggestions as to how I can recover data from this hard drive.