Question

YUM Update - Broke PERL

Asked by: Fatlog

hi,

am a bit of a newb to linux so apologies!
i have a centos box and made some additions using 'yum'. all worked fine. installed mysql-server, webmin, cvs etc... and they all worked fine. the only issue i had was the repository version of PHP was 4.3.x and i needed 5.x.

after some searching i found that by enabling the 'centosplus' repository and running yum update again i could update the other various components of my server including PHP. as you are probably saying, this was a bad idea!

PERL was also updated and now various parts of Webmin are non-functional. i cant get into apache, cron, file manager etc... also i presume if i were to restart the machine apache probably wouldn't start up again.

so is this fixable? can i rollback the PERL module in some way?

this is the error i get...

Error - Perl execution failed
Can't locate File/Glob.pm in @INC (@INC contains: /usr/libexec/webmin /usr/lib/perl5/5.8.5/i386-linux-thread-multi /usr/lib/perl5/5.8.5 /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.2/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.4/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.2/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl/5.8.4 /usr/lib/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl/5.8.2 /usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl .) at ./apache-lib.pl line 336.
BEGIN failed--compilation aborted at ./apache-lib.pl line 336.
Compilation failed in require at /usr/libexec/webmin/apache/index.cgi line 6.

thanks

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Asked On
2008-08-05 at 05:21:34ID23621883
Topics

Linux Distributions

,

Linux Administration

Participating Experts
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Points
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Answers

 

by: CoyotesITPosted on 2008-08-05 at 12:10:39ID: 22164020

Take a look at using rpm with the rollback option.

I'm not sure if you will be able to do this on your system, usually this option is configured with yum/rpm in the config and is not enabled by default.

You may need to remove the package and re-install the correct version.

Take a look at these as well.
http://www.vincentverhagen.nl/2007/12/10/how-to-roll-back-packages-on-centos-5-rhel-5/
http://blog.kagesenshi.org/2008/01/rpm-package-rollback.html
http://www.linuxweblog.com/node/213

 

by: FatlogPosted on 2008-08-06 at 02:10:35ID: 22168291

had a look at it and it looks like it is expecting perl 5.5.5 and yum updated to 5.8.8. was looking into the rollback option but like you said its not enabled by default so i've already gone too far!

do you know if YUM relies on PERL? dont want to go down the route of removing PERL only to find that yum wont work anymore.

also, is it not possible to the various modules to use the new version of perl???
am a little surprised that the modules are not robust enough to dynamically pick up what version of PERL is running

thanks

 

by: FatlogPosted on 2008-08-06 at 02:21:43ID: 22168334

sorry. it is expecting PERL 5.8.5 and 5.8.8 is running

 

by: CoyotesITPosted on 2008-08-06 at 08:56:47ID: 22171717

I took a look on my system and it doesn't look like yum requires perl, here is the command I used

[root@localhost /]# rpm -qa -R yum
/usr/bin/python
config(yum) = 3.2.8-9.el5_2.1
python >= 2.4
python(abi) = 2.4
python-elementtree
python-iniparse
python-sqlite
rpm >= 0:4.4.2
rpm-python
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
urlgrabber >= 3.1.0
yum-metadata-parser >= 1.1.0

As far as picking up the version of perl, yes it is very simple, and I'm not sure what it is that is giving you the hassle, but in a script it would be as simple as tweaking the output of either of these commands...


[root@localhost /]# perl --version
This is perl, v5.8.8 built for x86_64-linux-thread-multi
Copyright 1987-2006, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

-- or --

[root@localhost /]# rpm -qa perl
perl-5.8.8-10.e15_2.3

 

by: FatlogPosted on 2008-08-06 at 09:07:36ID: 22171865

the problem seems to be that various modules within my system seem to have been compiled with a specific version of perl. so for example apache is looking for this version of perl. apache is running at the moment but if i were to restart the server apache wouldn't start as it wouldn't be able to find perl.

do you know where it is hard-coded that apache looks for a certain version?

20120131-EE-VQP-002

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