Chapter 13 Downloading and Installing Software

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Chapter 13Downloading and Installing Software

• system-config-packages Adds and Removes Software
  Packages
• rpm Red Hat Package Manager
• Querying Packages and Files
• Installing, Upgrading, and Removing Packages
• Installing a Linux Kernel Binary
• Installing Non-rpm Software
• The /opt and /usr/local Directories
• GNU Configure and Build System
• Keeping Software Up-to-Date
• Fedora, Red Hat Enterprise Linux, Red Hat
  Network, and up2date Red Hat Network (RHEL)
• Keeping the System Up-to-Date
• yum Updates and Installs Packages
• Apt An Alternative to yum
• BitTorrent

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system-config-packages

• Adds and Removes Software Packages

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rpm Red Hat Package Manager

• Used with Red Hat and other Linux vendors
• End with .rpm extension
• Complete installation packages
• Checks dependencies
• Many thousands are available for download
• from Red Hat
• And many other vendors
• Designed for i386, i586, i686, alpha, athlon,
• sparc, and ppc.

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Querying Packages and Files
rpm q logrotate /etd/cron.daily/logrotate
rpm -ql Query for a list of files rpm -qi
logrotate Query for rpm package with lots of
detail Version 3.7 Release 4.1 Install
Date Tue Mar 28 93400 2005 Group System
Environment Base Size 46526 etc,
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Installing, Upgrading, and Removing Packages

• To Update, verbose, hash marks
• rpm -Uvh samba-3.0.0-15.i386.rpm
• Warning samba-3.0.0-15.i386.rpm V3 DSA
  signature NOKEY
• Preparing...
  100
• 1samba
  100
• rpm -e to delete, uninstall, or erase a
  package
• rpm ivh to INSTALL, verbose, hash marks

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Installing a Linux Kernel Binary

• Run rpm with the i (not the U) it is a new
  kernel not an upgrade
• Make sure the new kernel works before you remove
  the old kernel
• Remove the old kernel by removing the files that
  contain the release number from the /boot and
  from grub.conf and lilo.conf
• Relax! We wont do this until chapter 15.

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Installing Non-rpm Software

• The /opt and user/local/directories
• Linux and Solaris may put optional packages in
  the /opt/bin or /opt/package/bin directory
• Normal location is /usr/local or /usr/local/bin
• Used to build source code into executable on any
  Unix/Linux system

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GNU Configure and Build System

• Download tar ball, extract, compile, Install!
• tar xvzf nguchess
• x extract vverbose zuncompress or unzip
  ffile
• ./configure
• ./make
• ./make install
• Or
• ./configure make make install

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Keeping Software Up-to-Date

• Bugs
• Unwanted and unintended program property,
  especially one that causes the program to
  malfunction.
• Errata
• These are security, bugfix, and new feture
  updates.
• Use up2date to keep track of these.

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Fedora, Red Hat Enterprise Linux, Red Hat
Network, and up2date Red Hat Network (RHEL)
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Finding software

• To find your software
• whereis inks
• links (Not found on your system!)
• To use up2date to find your software
• up2date --whatprovides links
• http//fedora.redhat.com ..
• elinks-0.9.1-1
• To obtain a copy of the software
• up2date elinks
• http//fedora.redhat.com/download......
• ----------------------------------------------
• elinks 0.9.1 1 i386
• Testing package set
• 
  

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Keeping the System Up-to-Date

• Updates and Installs Packages
• yum
• yum update
• yum install tcsh
• yum remove tcsh
• Apt alternative to yum

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yum
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Apt

• An Alternative to yum
• Resolves issues of dependencies
• Stores locally a list of packages to find them
  faster
• Must download and install
• synaptic the Apt GUI
• apt-get install synaptic

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BitTorrent

• Provides p2p file transfers like ftp
• Doesnt require user authentication
• Downloads and uploads at same time
• Install from torrent.julug.duke.edu/btrpms
• Download a .torrent file
• Terms
• Tracker allows client communications
• Peer is a client
• Seed is a completed download so you can now
  provide the torrent for someone else

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wget

• Download Files Noninteractively
• Example
• wget b http//sample.com/bigfile.tar.gz
• The b downloads in background
• Another option c, continues an interrupted
  download

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Any Questions?