Install And Update Software Packages From Red Hat Network A Remote Repository Or From The Local File System

Install And Update Software Packages From Red Hat Network A Remote Repository Or From The Local File System

General Information
Managing software packages and repos.

Yum and Packages

Check to see if updates are available 
yum check-update

Update all packages, assume yes to all questions 
yum -y update

Search package name and summary for “apache” 
yum search apache

View package details 
yum info httpd

Install Apache Web Server 
yum install httpd

List all installed package 
yum list installed

What package created a file (or directory) 
yum provides /var/www

Uninstall package 
yum remove httpd

Clean yum cache files 
yum clean all

List repositories 
yum repolist

Yum Groups

List available groups 
yum group list

List available groups, including hidden 
yum group list hidden
  • This includes most of the Virtualization Groups

List all packages that belong to the “Security Tools” group 
yum group info "Security Tools"
Yum group info markers meanings
  • “-” = Package isn't installed, and won't be installed as part of the group (Eg. “yum group install foo -pkgA” or “yum group install foo; yum remove pkgA” … this will have pkgA marked as '-')
  • “+” = Package isn't installed, but will be the next time you run “yum upgrade” or “yum group upgrade foo”
  • “ ” = Package is installed, but wasn't installed via the group (so “group remove foo” won't remove it).
  • “=” = Package is installed, and was installed via the group.

Install the Security Tools group 
yum group install "Security Tools"
 
To undo a group install:
1) View yum history
yum history Loaded plugins: amazon-id, rhui-lb ID | Command line | Date and time | Action(s) | Altered ------------------------------------------------------------------------------- 25 | group install Security T | 2015-06-06 22:21 | Install | 3 24 | -y install httpd | 2015-06-06 21:32 | Install | 1
2) [Optional] View detailed information about ID 25 (Security Tools group install)
yum history info 25 Loaded plugins: amazon-id, rhui-lb Transaction ID : 25 Begin time : Sat Jun 6 22:21:20 2015 Begin rpmdb : 696:2cf91b5d397c109762f978831d2194caabcf22c4 End time : 22:21:21 2015 (1 seconds) End rpmdb : 699:ac6d05d5b20db2192d6b5f7f30723488222723d0 User : <user> Return-Code : Success Command Line : group install Security Tools Transaction performed with: Installed rpm-4.11.1-25.el7.x86_64 @rhui-REGION-rhel-server-releases Installed yum-3.4.3-125.el7.noarch @rhui-REGION-rhel-server-releases Installed yum-metadata-parser-1.1.4-10.el7.x86_64 @anaconda/7.0 Packages Altered: Dep-Install openscap-1.1.1-3.el7.x86_64 @rhui-REGION-rhel-server-releases Dep-Install openscap-scanner-1.1.1-3.el7.x86_64 @rhui-REGION-rhel-server-releases Install scap-security-guide-0.1.19-2.el7.noarch @rhui-REGION-rhel-server-releases history info
3) Undo the group install (removes installed packages)
yum history undo 25

RPM (Redhat Package Manager)

Use yum downloader to download RPM 
yumdownloader nano

Install package 
rpm -ivh nano-2.3.1-10.el7.x86_64.rpm
  • i - install
  • v - verbose
  • h - hash progress bar

List all installed rpm packages 
rpm -qa
  • q - query
  • a - all

List all files installed as part of package 
rpm -ql nano
  • l - list files

List all files that are part of a local RPM file that is not installed yet 
rpm -qlp nano-2.3.1-10.el7.x86_64.rpm

List documentation files for a package 
rpm -qd nano
  • d - documentation files

List configuration files for a package 
rpm -qc nano
  • c - configuration files

Remove package 
rpm -e nano
  • -e ⇒ erase

Install local rpm, auto install dependencies 
yum install nano-2.3.1-10.el7.x86_64.rpm
  • Note: yum localinstall ⇒ maintained for legacy reasons only, as yum install will behave as a local install if the target is a file.

Managing Repositories

Repo config files location
  • /etc/yum.repos.d
  • file must end in “.repo”

Show all enabled repos 
yum repolist

Show all enabled and disabled repos 
yum repolist all

Yum Config Manager

Add new repo 
yum-config-manager --add-repo=http://dl.fedoraproject.org/pub/epel/7/x86_64

Disable repo using yum-config-manager and repo id (get id from “yum repolist”) 
yum-config-manager --disable dl.fedoraproject.org_pub_epel_7_x86_64_

Remove repo 
rm -f /etc/yum.repos.d/dl.fedoraproject.org_pub_epel_7_x86_64_.repo

Repos via Config Files

Add new repo; create new file in /etc/yum.repos.d/ 
vim /etc/yum.repos.d/fedora_epel.repo
 
[EPEL7]
name=Fedora EPEL 7
baseurl=http://dl.fedoraproject.org/pub/epel/7/x86_64/
enabled=1
  • [EPEL7] ⇒ repo id
  • Fedora EPEL 7 ⇒ repo name

Disable repo by editing repo file 
vim /etc/yum.repos.d/fedora_epel.repo
 
enabled=0

Configuring A Local Repository

Setup directory and mount iso 
mkdir -p /repos/local
mount -o loop rhel-server-7.1-x86_64-dvd.iso /repos/local

Create local repo config file 
cd /etc/yum.repos.d/
vim local-repo.repo
 
[local-repo]
name=Red Hat Linux Local Repo
baseurl=file:///repos/local
enabled=1
gpgcheck=0

Configure The GPG Key

Download gpg key from repo 
cd /etc/pki/rpm-gpg
wget http://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-7

Add gpg check and key to repo config 
cd /etc/yum.repos.d
vim dl.fedoraproject.org_pub_epel_7_x86_64_.repo
 
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
 

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