Re: What to do when rpm verification fails

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>-- Start of PGP signed section.
>>On Fri, 2006-07-07 at 14:10 +0200, Andras Simon wrote:
>>> Doing an rpm -Va resulted in a lot of scary messages,
>>> S.?.....    /usr/bin/passwd
>>> being one of the most chilling. (And I thought I was very strictly
>>> firewalled, with no unnecessary services running, except for
>>> postgresql. Oh well...)
>>> 
>>> Anyway, at the very least, I'd like to reinstall the offending
>>> packages. Since there are other packages depending on them, I wonder
>>> how this can be done without too much hassle. Would
>>> 
>>> rpm -e --nodeps <package>
>>> yum install <package>
>>> 
>>> be safe?
>>> 
>>> Also, I get a lot of
>>> 
>>> prelink: /some/file/or/other : at least one of file's dependencies has
>>> changed since prelinking
>>> 
>>> warnings during rpm -Va. Is this something to be worried about? 
>>
>>this is *exactly* the sort of thing I saw the last time my system went
>>screwy. 
>>
>>The first thing you have to worry about is filesystem corruption. boot
>>from the install cd, and enter the linux rescue mode, and do not mount
>>the drives when prompted.
>>
>>fsck each of your partitions manually, possibly more than once if you
>>encounter a drive with many problems.
>>
>>Once you are able to get through that cleanly, then reboot the system
>>normally
>>
>>identifying the corrupted packages is your next step, again with 
>>    rpm -Va > rpmverify.txt 2>&1
>>
>>then step through the packages in question *carefully*
>>
>>things like glibc you don't want to first remove and then install :-)
>>
>>use ( yumdownloader <packagename> ) to grab the current package one at a
>>time, and use ( rpm -ivh --force packagename*rpm ) to re-install it in
>>place. 
>>
>>it may be a wise idea, once you have finished this process, to use
>>tune2fs to set up automatic filesystem checks at boot time periodically.
>>(I myself set up a 25 remount or 3 weeks option set on mine though
>>that's a tad on the paranoid side.. however faced with the above, you
>>might think the same way as me -- catch it early. ) 
>>
>>I used 
>>    tune2fs -c 25 -i 3w /dev/sda3
>>to make these settings on my / partition. tune2fs -l will list the
>>current settings for you. the manpage for tune2fs is particularly
>>enlightening in its description of the -c switch, and I recommend
>>reading it. 
>>
>>to catch further filesystem stuff like this, sooner, you might consider
>>running rpm -Va once a week in a cron job. 
>
>I'm not yet convinced that things are that bad. Prompted by this thread
>I just did an 'rpm -Va' on my RHEL4 system, and got piles of 
>S.5....T messages (accompanied by sporadic bursts of prelink
>activity but no error msgs - is this initiated by rpm if it thinks
>there is a problem?). I wrote a little script to 'rpm -V'
>package by package and find that:
>
>1. I seem to have some duplicate package names (this is on an x86_64
>   system which has only been 'up2date'ed once immediately after
>   installation) e.g:
>
>[root@ls1 ~]$ rpm -q tcp_wrappers
>tcp_wrappers-7.6-37.2
>tcp_wrappers-7.6-37.2
>
>2. almost all the entries with S.5... have a .T on the end,
>   and that those entries are in an rpm for which all entries
>   have a .T This suggests to me that there has been some sort
>   of package upgrade which is not being taken into account
>   during the verify.
>
>
>Looks like *something* is wrong, but quite what, I dont know.
>
>
>Cheers,
>Terry.

To add to my previous msg above, I should have looked a bit
longer before posting. It looks like all my 'rpm -Va' problems
occur in the pairs of duplicate rpm entries. rpm database mangled?

Terry.

>
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