[FALSE ALARM] Re: yum update and f12

Paul Allen Newell pnewell at cs.cmu.edu
Tue Jul 20 23:16:13 UTC 2010

On 7/20/2010 3:36 PM, Paul Allen Newell wrote:
> comments inline and at tail
> On 7/20/2010 2:04 PM, Michael Schwendt wrote:
>> On Tue, 20 Jul 2010 13:45:11 -0700, Paul wrote:
>>> I also wanted to check about what
>>> exactly "clean metadata" was going to do [...]
>> It is safe to run. The command deletes the local repository metadata 
>> cache
>> and forces Yum to re-download the repository metadata next time you run
>> it.  It is no silver bullet, but may help in odd cases.
> Thanks for confirm, I will try.
>>> [root at chalupa ~]# yum -v repolist
>>> Not loading "blacklist" plugin, as it is disabled
>>> Loading "presto" plugin
>>> Loading "refresh-packagekit" plugin
>>> Not loading "whiteout" plugin, as it is disabled
>> When you run "yum update", watch out for more plugins. From time to time
>> there are users who are hit by non-default plugins which exclude 
>> thousands
>> of packages due to misconfiguration or bugs.
> Michael:
> Can you elaborate a bit? I am rhinking that you might be focusing your 
> comments on the "blacklist" and "whiteout" comments (???) and I have 
> been operating under the assumption that, short of 
> Nvidia/Nouveau/blacklist, there isn't anything in these messages that 
> I need to worry about. I've seen presto and packagelist and have 
> always assumed they are part of yum and therefore safe.
> I do plan to "man yum" to get a list of "what it has" before cleaning 
> and then xdiff what it has afterward to see what changed.
> Thanks,
> Paul
Of course, when I go back to the machine to do the "yum clean metadata", 
I notice that after 2+ hours of being online, it "suddenly" has a notice 
that there are 521 updates that I need. Fired off "yum update" and it is 
taking its sweet time doing lots and lots of updates ... as I would have 
expected after not doing such since 14feb10.

Patience clearly was not exercised on my part ...

But it is good to know about "yum clean metadata" for the future ... and 
I am still curious about your warning on "watch out for more plugins"

Thanks for bearing with,

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