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Top Forums UNIX for Advanced & Expert Users Upgrading legacy packages with patch Post 303043799 by Neo on Friday 7th of February 2020 04:23:05 AM
Old 02-07-2020
Normally if we are making upgrades to mission critical applications in 100s of servers in a large organization with a risk management team we should notify them if if we plan any upgrades which may cause an outage.

You should test in a test bed, make a plan, identify the risks and notify your risk management team.

Upgrading the core "mission critical" application on 200-300 web servers requires planning and team work.

What happens if you make a mistake and bring down the application(s)? Do you want your organization to be caught off guard when customers are calling in, angry their service is down?

You have described a major infrastructure upgrade. You certainly do not want to upgrade with YUM over a manually installed configuration until you have completed tested this idea in a test bed, insure you have backups of each application and database before hand, etc. In other words, you need a plan in coordination with your IT risk management team, customer service, etc.

This is how we work as IT professionals.
 

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yumdownloader(1)														  yumdownloader(1)

NAME
yumdownloader - download RPM packages from Yum repositories SYNOPSIS
yumdownloader [options] package1 [package2...] DESCRIPTION
yumdownloader is a program for downloading RPMs from Yum repositories. GENERAL OPTIONS
-h, --help Help; display a help message and then quit. --destdir DIR Specify a destination directory for the download. Defaults to the current directory. --urls Instead of downloading RPMs, list the URLs that would be downloaded. --resolve When downloading RPMs, resolve dependencies and also download the required packages. --source Instead of downloading the binary RPMs, download the source RPMs. --archlist=ARCH1[,ARCH2...] Limit the query to packages of given architecture(s). Valid values are all architectures known to rpm/yum such as 'i386' and 'src' for source RPMS. Note that repoquery will now change yum's "arch" to the first value in the archlist. So "--archlist=i386,i686" will change yum's canonical arch to i386, but allow packages of i386 and i686. ADDITIONAL OPTIONS
Yumdownloader inherits all other options from yum. See the yum(8) man page for more information EXAMPLES
Download the kernel RPM to /var/tmp: yumdownloader --destdir /var/tmp kernel List the URL for the kernel and kernel-smp RPMs: yumdownloader --urls kernel kernel-smp FILES
As yumdownloader uses YUM libraries for retrieving all the information, it relies on YUM configuration for its default values like which repositories to use. Consult YUM documentation for details: /etc/yum.conf /etc/yum/repos.d/ /var/cache/yum/ SEE ALSO
yum.conf (5) http://yum.baseurl.org/ AUTHORS
See the Authors file included with this program. BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs. Gijs Hollestelle 28 November 2005 yumdownloader(1)
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