So the general problem is that CentOS/RedHat discontinued packaging net-snmp-perl
However, net-snmp-perl always carries an *exact-match* dependency on other packages. So net-snmp-libs cannot be upgraded if net-snmp-perl is installed and you don't also have an upgrade for net-snmp-perl. So it requires an effort to continuously stay on top of net-snmp and build all the rpms so we are at or ahead of the updates. For Lenovo, our approach has been to remove the hard requirement on net-snmp-perl, so that all of xCAT (with the exception of switch based discovery) will work if skipping the net-snmp mess. Of course switch based discovery is popular, for those people the choices are: -Blocking updates to net-snmp*/installing net-snmp without the update repositories enabled -Waiting for xCAT repository to catch up -Building net-snmp* rpms from source to force include the perl support (https://git.centos.org/rpms/net-snmp/tree/c8) -Using confluent for switch based discovery and then feed the macs to xCAT ________________________________ From: Jean-Baptiste Denis <jbde...@pasteur.fr> Sent: Tuesday, September 8, 2020 3:02 AM To: xcat-user@lists.sourceforge.net <xcat-user@lists.sourceforge.net> Subject: [External] Re: [xcat-user] Issues with net-snmp on new CentOS 8 system and xCAT 2.16 install > Using the Continous Release repository lead to things like this… Your answer makes me think I was lucky at the time I've installed it, which is not a good situation. I'll try to go back to this problem in the next days. Jean-Baptiste On 9/8/20 1:31 AM, Vinícius Ferrão via xCAT-user wrote: > Thanks Jean, this appears to be a 4 months old bug. Woot. > > I did what you’ve said but ended up other missing packages: > [root@headnode ~]# dnf install xCAT > Last metadata expiration check: 0:06:55 ago on Mon 07 Sep 2020 08:18:32 PM > -03. > Error: > Problem: package xCAT-2.16-snap202006161607.x86_64 requires perl(CGI), but > none of the providers can be installed > - package perl-CGI-4.38-2.el8.noarch requires perl(HTML::Entities) >= 3.69, > but none of the providers can be installed > - cannot install the best candidate for the job > - package perl-HTML-Parser-3.72-14.el8.x86_64 is filtered out by modular > filtering > - package perl-CGI-4.38-2.el8.noarch is filtered out by exclude filtering > - package perl-HTML-Parser-3.72-15.module_el8.3.0+416+b5fcb464.x86_64 is > filtered out by exclude filtering > - package perl-HTML-Parser-3.72-15.module_el8.3.0+416+dee7bcef.x86_64 is > filtered out by exclude filtering > (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to > use not only best candidate packages) > > > Using the Continous Release repository lead to things like this… > > What is strange in the original issue, is that the specific requirement is > tiered as an equal version, and in CentOS 8.2 the package is available but > it’s different in the last number: > nothing provides net-snmp-agent-libs(x86-64) = 1:5.8-10.el8 needed by > net-snmp-perl-1:5.8-10.el8.x86_64 > net-snmp-agent-libs x86_64 1:5.8-14.el8_2.1 > AppStream 747 k > > So xCAT mandates for 1.5.8-10; when 1.5.8-14 is available. > > Thanks, > >> On 7 Sep 2020, at 06:14, Jean-Baptiste Denis <jbde...@pasteur.fr> wrote: >> >> You can see the discussion here: >> https://github.com/xcat2/xcat-core/issues/6715 >> >> Right now, I'm using the suggestion I made (using net-snmp-perl from >> centos8-stream/Appstream): >> https://github.com/xcat2/xcat-core/issues/6715#issuecomment-660460514 >> >> Jean-Baptiste >> >> On 9/6/20 1:50 AM, Vinícius Ferrão via xCAT-user wrote: >>> Hello, >>> I don’t know I’m probably missing something, or if things got broken with >>> xCAT 2.16; after installing CentOS 8.2, the dnf install xCAT command fails: >>> [root@cluster ~]# dnf install xCAT >>> CentOS-8 - AppStream >>> 2.0 MB/s | 5.8 MB 00:02 >>> CentOS-8 - Base >>> 2.6 MB/s | 2.2 MB 00:00 >>> CentOS-8 - Extras >>> 14 kB/s | 7.3 kB 00:00 >>> CentOS-8 - PowerTools >>> 872 kB/s | 1.9 MB 00:02 >>> OpenHPC-2 - Base >>> 731 kB/s | 2.5 MB 00:03 >>> OpenHPC-2 - Updates >>> 430 B/s | 257 B 00:00 >>> Extra Packages for Enterprise Linux Modular 8 - x86_64 >>> 43 kB/s | 117 kB 00:02 >>> Extra Packages for Enterprise Linux 8 - x86_64 >>> 96 kB/s | 7.9 MB 01:24 >>> xCAT 2 Core packages >>> 27 kB/s | 30 kB 00:01 >>> xCAT 2 depedencies >>> 94 kB/s | 104 kB 00:01 >>> ZFS on Linux for EL8 - dkms >>> 30 kB/s | 48 kB 00:01 >>> Error: >>> Problem: package xCAT-2.16-snap202006161607.x86_64 requires >>> perl(xCAT::MsgUtils), but none of the providers can be installed >>> - package xCAT-2.16-snap202006161607.x86_64 requires perl(xCAT::Utils), >>> but none of the providers can be installed >>> - package perl-xCAT-4:2.16-snap202006161607.noarch requires perl(SNMP), >>> but none of the providers can be installed >>> - cannot install the best candidate for the job >>> - nothing provides net-snmp-agent-libs(x86-64) = 1:5.8-10.el8 needed by >>> net-snmp-perl-1:5.8-10.el8.x86_64 >>> - nothing provides net-snmp-libs(x86-64) = 1:5.8-10.el8 needed by >>> net-snmp-perl-1:5.8-10.el8.x86_64 >>> - nothing provides net-snmp-agent-libs(x86-64) = 1:5.8-7.el8 needed by >>> net-snmp-perl-1:5.8-7.el8.x86_64 >>> - nothing provides net-snmp-libs(x86-64) = 1:5.8-7.el8 needed by >>> net-snmp-perl-1:5.8-7.el8.x86_64 >>> (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to >>> use not only best candidate packages) >>> xCAT appears to require specific version (=) of net-snmp* when it should be >>> major or equal (>=). >>> Those packages are available but with higher versions: >>> Installing: >>> net-snmp-agent-libs x86_64 1:5.8-14.el8_2.1 >>> AppStream 747 k >>> net-snmp-libs x86_64 1:5.8-14.el8_2.1 >>> BaseOS 821 k >>> So, it may be a bug, right? >>> Thanks, >>> _______________________________________________ >>> xCAT-user mailing list >>> xCAT-user@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/xcat-user >> >> >> >> _______________________________________________ >> xCAT-user mailing list >> xCAT-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/xcat-user > > > _______________________________________________ > xCAT-user mailing list > xCAT-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xcat-user > _______________________________________________ xCAT-user mailing list xCAT-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcat-user
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