Yum disaster! DELETED mysql!

[Nat Gross]

On 11/8/05, Les Mikesell <lesmikesell at gmail.com> wrote:
> On Tue, 2005-11-08 at 12:10, Nat Gross wrote:
> > On 11/7/05, Kenneth Porter <shiva at sewingwitch.com> wrote:
> >         --On Monday, November 07, 2005 2:27 PM -0600 Thomas Cameron
> >         <thomas.cameron at camerontech.com> wrote:
> >
> >         > Very possibly.  The thing is, if Amarok uses MySQL, I am
> >         betting big
> >         > that according to the FC distro comps.xml file, Amarok uses
> >         MySQL 3.x.
> >         > When you updated, yum just did its best to get you up to
> >         date according
> >         > the comps.xml file.
> >
> >         Does yum downgrade packages? I've installed RPMs with a higher
> >         version than
> >         what's available from my configured repos (typically packages
> >         I've built
> >         myself), and haven't seen yum try to replace them with
> >         down-level packages.
> >
> >         I'm suspecting that there's something fishy about the version
> >         information
> >         in the installed package that caused yum to think the repo
> >         package was a
> >         higher version. Was it installed from tarball, bypassing RPM,
> >         perhaps?
> >
> > The installed pkg, mysql 4.1x was done from an RPM, but without yum.
> > You do bring out an important point. -y would not be that dangerous if
> > YUM behaved. Yum *was* the culprit!
>
> Well, no.  yum understands dependencies within the same
> distribution with RPMs created with the same conventions
> for version numbering.   Someone else is the culpit for
> installing things yum it doesn't know about.  If you had
> installed mysql and the client libraries that go with that
> version with yum it would not have removed it, but it
> probably also wouldn't have attempted to install something
> that required a downrev version from what you had.
>
> By the way, what does /var/log/yum.log say about the event?
> Did it try to erase the 4.x version or not even see it?
>
The mysql 4.x was downloaded from mysql.com as an rpm and the rpm
command line was used to install it.
I do not have access now to the log file or to that server - it's
being upgraded to FC4 as we speak (um, type). [and taking longer than
expected due to defective cd.]
Did it try to erase the 4.x version? You bet. It not only *tried*. It
succeeded. It reported on the console, "mysql deleted".

-nat