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Re: [EP-tech] Migrating to Redhat Linux 8.6
- To: <eprints-tech@ecs.soton.ac.uk>, Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
- Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
- From: David R Newman <drn@ecs.soton.ac.uk>
- Date: Sun, 24 Sep 2023 09:16:16 +0100
Hi Maher,
My original experience when installing the Perl module XML::LibXSLT on RHEL 8 was that you need to install the CPAN version rather than the packaged (RPM using yum or dnf) version. However, this was a much earlier version of RHEL 8 (actually it was Rocky Linux 8). The issue with XML::LibXSLT is that it uses the shared object file /usr/lib64/libxslt.so (which symlinks to a file with a filename that includes the current version) and it seems that certain versions of both this shared object and XML::LibXSLT need to be installed to work with Apache running in MPM event mode to avoid it segfaulting. Therefore, the instruction to use MPM prefork mode, which is included as advice under the Issues with RHEL / CentOS / Rocky Linux 9 [1] is also the best solution if you have similar problems on RHEL 8.
If you want to run in MPM event mode you can but you will need to not install XML::LibXSLT either as a package or using CPAN. Looking at some Rocky Linux 8 servers you can still have the libxslt RPM still installed it is just the loading of XML::LibXSLT into Apache that cause the segfault. The result of not installing XML::LibXSLT is that some XSLT based import plugins will not be available:
Atom XML
OpenXML Bibliography
It is also used on some of the OAI-PMH pages (e.g. /cgi/oai2?verb=ListRecords&metadataPrefix=oai_dc). However, here I think this is only to visualize XML within a webpage rather than OAI-PMH export harvesting functionality that may be used by third-party applications. Therefore, you have a choice to leave MPM event enabled for Apache and lose this functionality or enable MPM prefork instead (using the instructions you described) and allow XML::LibXSLT to be installed (best to do this using yum/dnf) so you have this functionality available.
I will look into updating the instructions on the wiki [2] to better explain the situation for RHEL 8. If I have time, I will do some investigation to see if there is anyway to have XML::LibXSLT installed and still run Apache in MPM event mode. However, I think you and others have already done exhaustive testing of this.
Regards
David Newman
[1] https://wiki.eprints.org/w/Installing_EPrints_on_RHEL/Fedora/CentOS#Compatibility_issues_with_XML::LibXSLT_2
[2] https://wiki.eprints.org/w/Installing_EPrints_on_RHEL/Fedora/CentOS#Compatibility_issues_with_XML::LibXSLT
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I just read again the following note mentioned in the documentation and realized that even if perl-XML-LibXSLT is installed using CPAN it also generates an httpd segmentation fault. So does this mean that we can go ahead and install perl-XML-LibXSLT using dnf and just apply the below fix to resolve the segmentation error?
Kindly confirm.
Compatibility issues with XML::LibXSLT
Installing XML::LibXSLT either through the perl-XML-LibXSLT or through CPAN causes httpd to generate a segmentation fault when you try to start it. The most straightfoarward solution to this is to run httpd in mpm-prefork rather than mpm-event mode. This can be acheived by editing /etc/httpd/conf.modules.d/00-mpm.conf and commenting out the following line:
LoadModule mpm_event_module modules/mod_mpm_event.soand uncommenting the mpm-prefork line:
LoadModule mpm_prefork_module modules/mod_mpm_prefork.soThanksMaher
-------- Original message --------From: Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>Date: 9/22/23 1:53 PM (GMT+03:00)Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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[root@sftp-gsadmissions-1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux release 8.6 (Ootpa)
[root@sftp-gsadmissions-1 ~]# hostnamectl
Static hostname: sftp-gsadmissions-1.test.kfupm.edu.sa
Icon name: computer-vm
Chassis: vm
Machine ID: 8830aac9e8e648238e78e56f6edae34b
Boot ID: b23e23a3c01443b1a774e86138f6df66
Virtualization: vmware
Operating System: Red Hat Enterprise Linux 8.6 (Ootpa)
CPE OS Name: cpe:/o:redhat:enterprise_linux:8::baseos
Kernel: Linux 4.18.0-372.9.1.el8.x86_64
Architecture: x86-64
Thanks
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Andrew Mehta
Sent: Friday, September 22, 2023 12:45 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
Or did I speak too soon? A quick google, and I learn hostnamectl may give more info, and works on any RedHat above version 7, =). From: Andrew Mehta <A. J. Mehta@ soton. ac. uk> Sent: 22 September 2023 10: 42 To: eprints-tech@ ecs. soton. ac. uk
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Or did I speak too soon?
A quick google, and I learn
hostnamectlmay give more info, and works on any RedHat above version 7, =).
From: Andrew Mehta <A.J.Mehta@soton.ac.uk>
Sent: 22 September 2023 10:42
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
Should you be able to run:
cat /etc/redhat-releaseI can be informed of the specific version of your RedHat =).
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 22 September 2023 10:10
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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Thank you very much for your support and looking forward to your update.
-------- Original message --------
From: Andrew Mehta <A.J.Mehta@soton.ac.uk>
Date: 9/22/23 11:06 AM (GMT+03:00)
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
I believe in doing things properly, so I'll spin up a VM with Redhat 8. 6 at some point today (or more likely this evening as it's looking like a busy day) and try and replicate what you're experiencing here. You had no problem with the dnf
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I believe in doing things properly, so I'll spin up a VM with Redhat 8.6 at some point today (or more likely this evening as it's looking like a busy day) and try and replicate what you're experiencing here.
You had no problem with the dnf perl bindings installation,
and only with the cpan installs,
from what I gather.
John's mentioning of version numbers reminds me - you can use cpan or cpanm to install specific versions of modules too.
If there's a known version that works well with your RedHat 8.6, you could ask cpan or cpanm to specifically install that version.
This is assuming I'm not confusing Perl Module versions with underlying lxslt versions.
I once had a problem running Alien::ImageMagick on an older version of CentOS, and found it was attempting to install a version of ImageMagick not compatible with my OS, so I just jumped into the part of the cpan module that specified what version of ImageMagick to install, changed it to a last known working version, and that solved the problem, giving me a uniquely patched version of the cpan module to install to solve my particular issue.
Of course in this case, the error we're facing is it not being found. Which means there's a risk it could be there and working and just not being located.
Obviously I'm only speculating and could be completely wrong.
I'll replace hypothetical guessing with experience and results from trial and error,
when I get the VM going later today.
Of course, the problem could be something unique to your setup Maher, that I may not be able to initially replicate with a VM, and might be able to replicate with further communication with you. For now, I'll give it a go later today, and see what I find, then I'll post back here and share any findings.
Feel free to experiment with other potential solutions in the meantime.
Or take a break if it's driving you potty ;-).
Yours,
Andrew.
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 22 September 2023 03:47
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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Internal
Tried this command
./cpanm -l local https://github.com/shlomif/perl-XML-LibXSLT.git@master
But received the same error:
cpanm (App::cpanminus) 1.7047 on perl 5.026003 built for x86_64-linux-thread-multi
Work directory is /root/.cpanm/work/1695350723.167984
You have make /bin/make
You have LWP 6.34
You have /bin/tar: tar (GNU tar) 1.30
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by John Gilmore and Jay Fenlason.
You have /bin/unzip
Cloning https://github.com/shlomif/perl-XML-LibXSLT.git
Cloning into '/tmp/JDue8C3Kpl'...
Already on 'master'
Your branch is up to date with 'origin/master'.
-> OK
--> Working on https://github.com/shlomif/perl-XML-LibXSLT.git@master
Entering /tmp/JDue8C3Kpl
Configuring /tmp/JDue8C3Kpl
Running Makefile.PL
running pkg-config libxslt... ok
looking for -lxslt... no
libxslt not found
Try setting LIBS and INC values on the command line
Or get libxslt and libxml2 from
If you install via RPMs, make sure you also install the -devel
RPMs, as this is where the headers (.h files) are.
-> N/A
-> FAIL Configure failed for https://github.com/shlomif/perl-XML-LibXSLT.git@master. See /root/.cpanm/work/1695350723.167984/build.log for details.
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Friday, September 22, 2023 5:36 AM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Internal We received the following error: [root@ sftp-gsadmissions-1 bin]# ./cpanm git: //github. com/shlomif/perl-XML-LibXSLT. git@ master
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Internal
We received the following error:
[root@sftp-gsadmissions-1 bin]# ./cpanm git://github.com/shlomif/perl-XML-LibXSLT.git@master
Cloning git://github.com/shlomif/perl-XML-LibXSLT.git ... FAIL
! Failed cloning git repository git://github.com/shlomif/perl-XML-LibXSLT.git
! Couldn't find module or a distribution git://github.com/shlomif/perl-XML-LibXSLT.git@master
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of John Salter
Sent: Friday, September 22, 2023 1:09 AM
To: eprints-tech@ecs.soton.ac.uk
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. I meant you should try to download/install from GitHub, rather than via dnf or the CPAN archive. Newer
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I meant you should try to download/install from GitHub, rather than via dnf or the CPAN archive.
Newer versions of cpanm apparently allow you to do this (I've never tried this before!):
Does that help at all?
I personally haven't tried running EPrints on RHEL8. Others might be able to answer that question.
Cheers,
John
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 21 September 2023 19:59
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton.
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Do you mean to download the xml-libxslt 1.96.6 and try to manually install it by running the makefile.pl ....?
Would appreciate if you have clear steps to try to resolve this issue.
Do you know if eprints has been successfully tested to run on redhat 8.6 or not?
-------- Original message --------
From: John Salter <J.Salter@leeds.ac.uk>
Date: 9/21/23 9:28 PM (GMT+03:00)
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. There are quite a few changes from 1. 96. 6 (which I think is what RHEL provides from their repo) and
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There are quite a few changes from 1.96.6 (which I think is what RHEL provides from their repo) and 2.001001 (CPAN version).
Maybe try cloning the git repo for it, and following their instructions (I can't remember what the process is off the top of my head!).
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 21 September 2023 19:15
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton.
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Internal
We modified the Makefile.pl file as mentioned in the link, but running the perl Makefile.PL did not work as shown below:
[root@sftp-gsadmissions-1 XML-LibXSLT-2.002001]# perl Makefile.PL
running pkg-config libxslt... ok
looking for -lxslt... no
libxslt not found
Try setting LIBS and INC values on the command line
Or get libxslt and libxml2 from
If you install via RPMs, make sure you also install the -devel
RPMs, as this is where the headers (.h files) are.
[root@sftp-gsadmissions-1 XML-LibXSLT-2.002001]# ^C
[root@sftp-gsadmissions-1 XML-LibXSLT-2.002001]# make
make: *** No targets specified and no makefile found. Stop.
Are there any other modification required to be made in the Makefile.PL file? As it is still complaining that libxslt not found??
Thanks,
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 8:11 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Internal Where do I get the Makefile. pl file to modify it? After modifying it should I still use CPANM
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Internal
Where do I get the Makefile.pl file to modify it?
After modifying it should I still use CPANM to install?
Please send the steps f possible.
Thanks,
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of John Salter
Sent: Thursday, September 21, 2023 6:44 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Whatever the problem is, it’s not obvious! This might be related: https: //github. com/shlomif/perl-XML-LibXSLT/issues/6
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Whatever the problem is, it’s not obvious!
This might be related:
https://github.com/shlomif/perl-XML-LibXSLT/issues/6
Does this update to the Makefile.pl help:
https://github.com/shlomif/perl-XML-LibXSLT/commit/45edf81581d6ef4e9a269feda31c5f57633ac0d9
It doesn’t look like the above commit has made it to a release version yet – but I’m not sure why that would cause the CPAN route to fail, unless the CPAN and DNF are different version numbers…
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 3:42 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton.
CAUTION: This e-mail originated outside the University of Southampton.
Internal
We are not sure if installing the perl-XML-LibXSLT using dnf will cause any segmentation faults with our Apache httpd webserver or not. We are just following the recommendation in the documentation to install using CPAN.
Following is the cpanm –V output:
# ./cpanm -V
cpanm (App::cpanminus) version 1.7047 (./cpanm)
perl version 5.026003 (/usr/bin/perl)
%Config:
archname=x86_64-linux-thread-multi
installsitelib=/usr/local/share/perl5
installsitebin=/usr/local/bin
installman1dir=/usr/share/man/man1
installman3dir=/usr/share/man/man3
sitearchexp=/usr/local/lib64/perl5
sitelibexp=/usr/local/share/perl5
vendorarch=/usr/lib64/perl5/vendor_perl
vendorlibexp=/usr/share/perl5/vendor_perl
archlibexp=/usr/lib64/perl5
privlibexp=/usr/share/perl5
%ENV:
@INC:
FatPacked::94715887577112=HASH(0x5624c2d56818)
/usr/local/lib64/perl5
/usr/local/share/perl5
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5
This is the content of the file “XML-LibXSLT-2.002001-0.yml”
---
distribution: !!perl/hash:CPAN::Distribution
CALLED_FOR: XML::LibXSLT
CHECKSUM_STATUS: OK
ID: S/SH/SHLOMIF/XML-LibXSLT-2.002001.tar.gz
RO:
CPAN_COMMENT: ~
CPAN_USERID: SHLOMIF
archived: tar
build_dir: /root/.local/share/.cpan/build/XML-LibXSLT-2.002001-0
incommandcolor: 1
localfile: /root/.local/share/.cpan/sources/authors/id/S/SH/SHLOMIF/XML-LibXSLT-2.002001.tar.gz
mandatory: 1
negative_prefs_cache: 1
prefs: {}
reqtype: c
unwrapped: !!perl/hash:CPAN::Distrostatus
COMMANDID: 1
FAILED: ''
TEXT: YES
TIME: 1695294479
writemakefile: !!perl/hash:CPAN::Distrostatus
COMMANDID: 1
FAILED: 1
TEXT: "NO -- No 'Makefile' created\n"
TIME: 1695294480
perl:
$^X: /usr/bin/perl
mtime_$^X: 1673971108
mtime_dll: 0
sitearchexp: /usr/local/lib64/perl5
time: 1695294480
Thank you for your support.
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Andrew Mehta
Sent: Thursday, September 21, 2023 5:31 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
Is it a problem for your EPrints migration if perl-XML-LibXSLT is working fine for you? The CPAN install idea is only if you sometimes find the perl-XML-LibXSLT package causes segmentation faults with the Apache httpd webserver. You mention
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Is it a problem for your EPrints migration if
perl-XML-LibXSLT
is working fine for you?
The CPAN install idea is only if you sometimes find the perl-XML-LibXSLT package causes segmentation faults with the Apache httpd webserver.
You mention you are using cpanm.
Is the following command...cpanm -V
...showing the correct installation locations?
Is any further info in build logs in your user's home directory's ".cpanm" folder?
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 21 September 2023 15:20
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton.
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Internal
Sorry the libxslt is a folder (not a file) and is located here:
/usr/include/libxslt
We also have the following libxslt files here:
/usr/lib64/libxslt.so.1.1.32
/usr/lib64/libxslt-plugins
/usr/lib64/libxslt.so.1
/usr/lib64/pkgconfig/libxslt.pc
/usr/lib64/libxslt.so
/usr/share/licenses/libxslt
The error appearing when trying to install using CPAN is this:
looking for -lxslt... no
libxslt not found
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 5:01 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Internal We installed from RPM dnf install perl-XML-LibXSLT which was successful and resolved any
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Internal
We installed from RPM dnf install perl-XML-LibXSLT which was successful and resolved any dependencies.
Then we did a dnf remove perl-XML-LibXSLT and then a cpanm (Yes we are using cpanm) XML::LibXSLT but received the same error and the installation failed.
Could the issue be from the location of the libxslt file?
# which libxslt
/usr/bin/which: no libxslt in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
The libxslt file is located here:
/usr/include/libxslt
Thanks
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of John Salter
Sent: Thursday, September 21, 2023 4:49 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Apologies, that previous ‘which’ wasn’t too helpful :\ If you try installing from RPM: >dnf install
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Apologies, that previous ‘which’ wasn’t too helpful :\
If you try installing from RPM:>dnf install perl-XML-LibXSLT
Does it work (and resolve dependencies)?
If so, you could then remove the RPM version:
>dnf remove perl-XML-LibXSLT --noautoremove
and then try installing the CPAN version again.
Another thing you could try is using ‘cpanm’ – an alternative to CPAN.
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 2:37 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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Internal
I’m using the root user for running the below command and for trying to install the CPAN module, this is the output:
# which libxslt
/usr/bin/which: no libxslt in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of John Salter
Sent: Thursday, September 21, 2023 4:33 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. If you run: > which libxslt As the same user you are trying to install the CPAN module with, does
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If you run:
> which libxsltAs the same user you are trying to install the CPAN module with, does it return anything?
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 2:20 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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Hi Martin
The packages libxslt-devel libxslt libxml2-devel libxml2 are only installed using dnf and are not installed again on the system using CPAN. As for the XML::LibXSLT it is recommended in the documentation to install it using CPAN and not as an rpm using dnf.
Any ideas?
Thanks,
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Martin Brändle
Sent: Thursday, September 21, 2023 3:56 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: Re: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Hi, if you have the rpms installed, you don’t need the CPAN package (you should remove it) – otherwise
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Hi,
if you have the rpms installed, you don’t need the CPAN package (you should remove it) – otherwise you may run into conflicts.
Kind regards,
Martin
--
Dr. Martin Brändle
Zentrale Informatik
Universität Zürich
Stampfenbachstr. 73
CH-8006 Zürich
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> on behalf of Maher Abdellatif Ahmad Qahwash <qahwash@kfupm.edu.sa>
Sent: 21 September 2023 15:20
To: eprints-tech@ecs.soton.ac.uk <eprints-tech@ecs.soton.ac.uk>
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
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Internal
Sorry the libxslt is a folder (not a file) and is located here:
/usr/include/libxslt
We also have the following libxslt files here:
/usr/lib64/libxslt.so.1.1.32
/usr/lib64/libxslt-plugins
/usr/lib64/libxslt.so.1
/usr/lib64/pkgconfig/libxslt.pc
/usr/lib64/libxslt.so
/usr/share/licenses/libxslt
The error appearing when trying to install using CPAN is this:
looking for -lxslt... no
libxslt not found
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of Maher Abdellatif Ahmad Qahwash
Sent: Thursday, September 21, 2023 5:01 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Internal We installed from RPM dnf install perl-XML-LibXSLT which was successful and resolved any
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Internal
We installed from RPM dnf install perl-XML-LibXSLT which was successful and resolved any dependencies.
Then we did a dnf remove perl-XML-LibXSLT and then a cpanm (Yes we are using cpanm) XML::LibXSLT but received the same error and the installation failed.
Could the issue be from the location of the libxslt file?
# which libxslt
/usr/bin/which: no libxslt in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
The libxslt file is located here:
/usr/include/libxslt
Thanks
Maher
From: eprints-tech-request@ecs.soton.ac.uk <eprints-tech-request@ecs.soton.ac.uk> On Behalf Of John Salter
Sent: Thursday, September 21, 2023 4:49 PM
To: eprints-tech@ecs.soton.ac.uk
Subject: RE: [EP-tech] Migrating to Redhat Linux 8.6
CAUTION: This e-mail originated outside the University of Southampton. CAUTION: This e-mail originated outside the University of Southampton. Apologies, that previous ‘which’ wasn’t too helpful :\ If you try installing from RPM: >dnf install
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Apologies, that previous ‘which’ wasn’t too helpful :\
If you try installing from RPM:>dnf install perl-XML-LibXSLT
Does it work (and resolve dependencies)?
If so, you could then remove the RPM version:
>dnf remove perl-XML-LibXSLT --noautoremove
and then try installing the CPAN version again.
Another thing you could try is using ‘cpanm’ – an alternative to CPAN.
...
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