On Wed, 21 Feb 2007, Roland McGrath wrote:
Primarily, I have to update manually and often have to exclude some broken
deps.
This would be greatly aided if yum had a "smallest usable transaction"
mode. That is, instead of always doing one giant upgrade that barfs if
there are dependency problems, it would take each update available and suck
in only its necessary deps as if you'd done "yum upgrade foobar" on the
individual package, finish that, and then do the next transaction. When
some packages have dependency problems, they get punted but not everything
else unrelated. So instead of either "wait for a day when yum upgrade works"
or "mess around manually a lot", every day has an "easily upgrade what
upgrades easily" option.
For all the bizarre decisions apt-rpm can occasionally do in depsolving,
this kind of thing it does rather well. Depending on various details and
the used method, it'll either hold back from updating a package or remove
if there's no other way to solve the issue. Additionally with
--fix-missing it's much more forgiving about partially out-of-sync mirrors
than yum is.
I have a feeling I've said this before but I find it somewhat funny that
yum refuses to work with broken repository but doesn't care about
broken dependencies on the installed system whereas apt refuses to work
with broken dependencies on the installed system, yet is fairly forgiving
about badness in repository. Usually using one or the other will get you
around the problem, depending on the situation :)
- Panu -
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