View Full Version : [ubuntu] Error formatting drive; One or more block devices are holding

June 25th, 2012, 04:32 PM
I'm trying to install a software raid 5 using 4 1TB Drives (I have the os on a stand alone 5th drive).

2 drives formatted to GUID with no probs, however the last two drives (which came from a windows pc in a raid 0 config) will not format. They both return the same error-

Error formatting drive
An error occurred while performing an operation on "1.0TB Hard Disk" (ATA ST31000528AS)

I have attached an image of the errors returned.

Interestingly, the drives appear as they should under the host adapter, however there are 2 2.0TB drives under "periphrasis Devices"?