Got a wild hair this A.M. and decided to inundate my two brain cells.
"Man yum" includes this:
update If run without any packages, update will update every
currently installed package. ...
assumed to be a shell glob and any matches are then installed.
If the --obsoletes flag is present yum will include package
obsoletes in its calculations - this makes it better for distro-
version changes, for example: upgrading from somelinux 8.0 to
somelinux 9.
Hmmm. Cell number 2 doesn't forget much. I recall several admonitions
that major upgrade should take the form of a new install. E.g. CentOS 3*
to CentOS 4*. The paragraph above *seems* to indicate that a major
upgrade might be doable? Moreover, it prompts the questions:
1) "What are the downsides, if any?"
2) "Has anybody tried it recently?"
3) "Have any results to report?"
No pressing need, just curious.
TIA
--
Bill
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