Issue:
How do I know which Update I am using from Red Hat Network for Red Hat Enterprise Linux 3?
Resolution:
Red Hat will release bulk updates in a bundle that we call an Update. You will commonly hear these referred to as “Update [Number]” or “U[Number]” where [Number] is the Update Release number. This does not necessarily correspond to a business cycle quarter. The Update can be determined, in part, by which kernel is in the Update. When Red Hat releases a new Update, we will also release a new set of ISO images so that installations can be performed from the packaged errata and other updates. It is important to note that the most significant change in an Update is the kernel because this is the time when release notes are updated and kernel drivers (modules) can be effected.
The current Updates for Red Hat Enterprise Linux 3 can be associated with the corresponding kernels:
Update 1 -or- U1 - kernel 2.4.21-9.EL Update 2 -or- U2 - kernel 2.4.21-15.EL Update 3 -or- U3 - kernel 2.4.21-20.EL Update 4 -or- U4 - kernel 2.4.21-27.EL Update 5 -or- U5 - kernel-2.4.21-32.EL Update 6 -or- U6 - kernel-2.4.21-37.EL Update 7 -or- U7 - kernel-2.4.21-40.EL Update 8 -or- U8 - kernel-2.4.21-47.EL
http://kbase.redhat.com/faq/FAQ_58_4679.shtm
