On Fri, Jan 8, 2010 at 3:25 AM, Joseph L. Casale <jcasale at activenetwerx.com> wrote: > I need to do some testing with 5.3 as its suggested that 5.4 has > "some bugs in the toolchain and libc". Suggested by whom and where are the bug reports? > That being the case, I can > install with a url and repo line pointing to a mirror with 5.3 still > but how does one properly make sure during subsequent uses of yum it > doesn't attempt to use 5.4 rpms? As long as 5.3 is on the mirrors, you can "just" change your Base.repo file. But you won't get *any* security or other updates that way. > What actually happens to the 5.3 repo so that `yum update` actually > switches repo's when one is available? $releasever is "5" and centos/5/ is a link to centos/5.4/ on the mirrors. Ralph