02-09-2017
Install everything i need in lab (the OS and packages).
You want to maintain a list of what you did.
Do everything from repositories, local repositories best.
Install everything you need using yum or yum localinstall.
Once you have completed the OS install and all the packages, create a kickstart file from it.
Using kickstart you can define disk layout, hostname, network configuration, packages to install (from list you took) and post install stuff (wget something or whatever ).
Play with it until you achieve perfect install, then just PXE a new environment using that kickstart file with minute changes over numerous protocols (http, tftp etc.) and local repositories.
If you upgrade or patch, remember to review and test the installation using kickstart file.
So it's not actually a clone, but a fresh system with everything you require.
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LEARN ABOUT CENTOS
yum-utils
yum-utils(1) yum-utils(1)
NAME
yum-utils - tools for manipulating repositories and extended package management
SYNOPSIS
debuginfo-install - install debuginfo packages and their dependencies
find-repos-of-install - report which repository the package was installed from
needs-restarting - report process ids that started running before they or some component they use were updated
package-cleanup - manage package cleanup, duplicates, orphaned packages and outstanding dependency problems
repo-graph - outputs a full package dependency list in dot format
repo-rss - generates an RSS feed from one or more repositories
repoclosure - reads metadata of repositories, checks dependencies and displays list of unresolved dependencies
repodiff - takes two or more repositories, returns a list of added, removed or changed packages
repomanage - manages a directory of rpm packages, returns a list of newest or oldest packages in a directory
repoquery - query yum repositories and get additional information on the them
reposync - synchronize a remote yum repository to a local directory using yum to retrieve packages
repotrack - track packages and its dependencies and downloads them
show-changed-rco - list of changes to a package Requires, Conflicts and Obsoletes data from installed to a specified rpm file
show-installed - gives a compact description of packages installed and makes use of comps groups in repositories
verifytree - verify that a local yum repository is consistent
yum-builddep - installs missing dependencies to build a specified package
yum-complete-transaction - finds incomplete or aborted yum transactions and attempts to complete them
yum-config-manager - toggle yum repositories, add new repositories and set main yum configuration options
yum-debug-dump - creates gzipped file containing information for debugging problems
yum-debug-restore - replays any transactions captured in gzipped file in yum shell
yum-groups-manager - create and edit yum's group metadata
yum-installed - print a compact package list making use of comps groups
yumdb - query or alter the yum database
yumdownloader - downloads packages from yum repositories including source RPMs
DESCRIPTION
yum-utils is a collection of tools and programs for managing yum repositories, installing debug packages, source packages, extended infor-
mation from repositories and administration.
NOTES
See respective tools for additional help for commands without a manual page
SEE ALSO
debuginfo-install(1), package-cleanup(1), repodiff(1), repoquery(1), reposync(1), repo-rss(1), show-changed-rco(1), show-installed(1), yum-
downloader(1), yum-builddep(1), yum-debug-dump(1), yum-groups-manager(1), yumdb(8), yum-complete-transaction(8)
AUTHOR
Shawn Starr <shawn.starr@rogers.com>
yum-utils August 2011 yum-utils(1)