We have upgraded 6 RH9 servers to CentOS 3.4 without issue by just using "linux upgradeany" all went very smooth and without issue, However on one of our attempts a server running RH9 has the following error when attempting to upgrade, "invalid compressed format (err=2)" Have not seen this before .. Anyone have any ideas? .. This is a older IBM Netfinity 5000 server but as stated RH9 loaded on it without issue ?? BRW