[CentOS] Nightly yum update did an "upgrade"

Sat Oct 4 15:28:28 UTC 2008
Lutz Griesbach <lutz.griesbach at coremedia.com>

On Fri, 2008-10-03 at 23:23 +0100, Karanbir Singh wrote:
> Vandaman wrote:
> >>From the notes on the "bug" you would have to have 4.5/os/$basearch/
> > instead of $releasever/os/$basearch/ to get the "bug".
> 
> And you assume that since he is seeing similar effects, he must also
> have done the exact same thing ?
> 
> > Also yum update
> > or upgrade should not break anything unless you have packages from
> > elsewhere and murked about with the configs. 
> 
Forget that bug, it was a totally differnet machine and i don't want
this mixed up here, may be it was my fault, it doesn't matter.


> > I have looked on the last month's list and not seen :-
> > 
> > - people whose machines took weeks to autoupdate.
> > - people whose production machines were broken by 4.6 to 4.7
> > 
> > Clearly Lutz's situation is unique and he has not told us the whole story.
> 

You don't wanna hear the whole story, i can tell you... :)

>From my point of view, i wouldn't let do a productive machine such 
an update unattended, that's why i switched it off (as i already said,
i didn't know, it was turned on). Neither yum nor I can presume the 
impact. Not that i blame yum for it, i don't expect it can foresee
all complexities of any installed software.


i'd like to monitor every update in a downtime window (for productive
machines!), just to be save i don't run into trouble, when the box 
is needed. I also wouldn't do any "dist-upgrade" in debian or install
service Packs on windows  (forgive me _that_ analogy...) 
without watching it. 


For my own curiosity, i'd like to know the reason, why it took 
almost 3 weeks before the updates hit the machine. The Base Repository
gets its mirrorlist from "mirrorlist.centos.org". I can post it, if you
want. What might be interesting is the fact, that there is also the 
"dag" repository (http://dag.wieers.com) enabled, where the nagios-nrpe
package comes from. 

For the dhcrelay issue: The update brought dhcp.x86_64 7:3.0.1-62.EL4
and in the messages i have an entry with succeeded TERM signal

Oct  2 04:14:02 trainer dhcrelay: dhcrelay -TERM succeeded

shouldn't it get -HUP Signal or completely restarted? 


Regards

Lutz