On 10/18/2011 9:15 PM, Barry Brimer wrote: >>> Hello Group, >>> >>> I am installed some application running on top of Centos 5.2 OS and these >>> applications are running fine. However, we are thinking of upgrading our >>> 5.2 Centos to 5.7 (hot upgrade). That is we want to upgrade from 5.2 Centos >>> to 5.7 Centos and not disturb the applications. >>> >>> Is it possible? Could someone please help. >> It is rare for a 'yum update' to disturb already working applications. >> It is possible of course, but the point of 'enterprise' distributions >> is that a lot of care is taken to not break things (i.e. make changes >> that aren't backwards compatible) within a major release version. >> >> Not sure if it is necessary but there were some quirks in the updates >> along the way that might make it a good idea to: >> >> yum update glibc\* rpm\* yum\* python\* >> before doing a full 'yum update'. > I might suggest a yum clean all before the above command. I've seen a 5.0 > yum update to a 5.6 without issue, but there was very little on the > server. Actually, I generally do something like this when there is a new version of yum: yum clean all yum update glibc\* rpm\* yum\* python\* yum clean all yum update This lets the new yum version recreate everything so there are less likely to be any issues. -- Bowie