On Sat, 5 Oct 2002, Shaw, Marco wrote:
> OK, so a -U will upgrade a package if it already exists, or basically do an install
>if no previous package was found, whereas -F will only upgrade a package if an older
>version if found on the system.
>
> Is one better/more reliable than the other on a production system?
> I would guess -F would be better for "blindly" downlaoding *all* the errata, and
>applying them with one command only if the package already exists on the system...
>
> Without going to the source code, I'm assuming up2date/RHN would use -F?
>
> Marco
Yes, -Fvh is much better if you are blindly updating from a
directory full of rpms.
up2date is much smarter than -Fvh. For example. If package
foo-1.0-4.i386.rpm is now split into two packages
bar-1.0-5.i386.rpm and baz-1.0.5.i386.rpm, -Fvh won't catch it.
up2date should properly "figure out" that scenario and "do the
right thing".
Plus, there are a number of packages that you don't want to
blindly update that up2date installs properly without much
thought on a users part: eg. kernel and glibc come to mind.
I don't think up2date ever calls rpm directly.
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