Update to CentOS6 or try reformatting them to multiple ext3 (under 2TB) partitions. On 08/12/2013 09:59 AM, james wrote: > We have a 3TB external USB drive that I am trying to attach to some CentOS5 > servers. I have tried an older Dell PE1950 and a newer R310 but neither one > seems to be able to read the drive. It works no problem on windows > servers/workstations and I was able to format with NTFS. >