Package Management

Yellow Dog Update Manager (YUM)

It’s a repository and stored some rpm

Repository info stored in /etc/yum.repos.d/rhel.debuginfo.repo

Yum configuration file

# less /etc/yum.conf

Install a new package called foo

# yum install foo

 To update all packages

# yum update

To update a single package called foo

# yum update foo

To remove a package called foo

# yum remove foo

To list all installed packages

# yum list installed

Display information on a package called foo

# yum info foo

To display list of packages for which updates are available

# yum list updates

or

# yum check-update

To find any packages matching a string in  the  description,  summary, packager and package name fields of an rpm

# yum search foo

Create private repository

createrepo –v /package/directory

repomd.xml – contain timestamp and checksum for other 3files

primary.xml.gz – contains list of rpm and dependency in repo

filelists.xml.gz – contains list of files in rpm

other.xml.gz – additional info

comps.xml – info about package group

Configuring repository

/etc/yum.reps.d

[repo-name]

name=description

baseurl=http://server.com/path

enabled=1

gpgcheck=1