How to install jigdo on CentOS and RHEL
Posted February 27th, 2008 in Linux/Unix/BSD
I create CDs and DVDs for my Linux CD Mall website on a CentOS 4 machine, and create the new ISO images for Debian using jigdo. This is the first of several posts which will look at jigdo, and looks at how to install jigdo on CentOS and Red Hat Enterprise Linux, because the necessary package is not included in the default software repositories.
What is jigdo?
jigdo is a method of downloading CD and DVD images over the Internet (and other large files) and is used by Debian and Ubuntu when new releases are created. jigdo files contain a list of the files that need to be included in the new CD or DVD ISO image and you can get the files from local sources and over the Internet. This means when you want to create ISO images for updated versions of Debian, you only need to download the changed files. This saves both bandwidth and and time.
Installing jigdo on CentOS and RHEL
You need to download and install the correct RPM file from http://dag.wieers.com/rpm/packages/jigdo/ . The choices currently available are for RHEL/CentOS 1 through 5 (they're the ones labelled eg jigdo-0.7.3-1.el5.rf.i386.rpm where the text in bold indicates Enterprise Linux 5), Red Hat 9, and Fedora 1 through 3. There are also source RPMs available.
Download the file first, and then use yum from the command line so install it running either as the root user, or using the sudo command:
wget http://dag.wieers.com/rpm/packages/jigdo/jigdo-0.7.3-1.el4.rf.i386.rpm yum install jigdo-0.7.3-1.el4.rf.i386.rpm
Yum will work out any dependencies that are required and download and install those as well. In my case, I don't have any X stuff installed so it had to download a few additional packages.
The output from my install was as follows:
Setting up Install Process Setting up repositories Reading repository metadata in from local files Excluding Packages from CentOS-4 - Updates Finished Excluding Packages from CentOS-4 - Base Finished Reducing CentOS-4 - Contrib to included packages only Finished Parsing package install arguments Examining jigdo-0.7.3-1.el4.rf.i386.rpm: jigdo - 0.7.3-1.el4.rf.i386 Marking jigdo-0.7.3-1.el4.rf.i386.rpm to be installed Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package jigdo.i386 0:0.7.3-1.el4.rf set to be updated --> Running transaction check --> Processing Dependency: libgtk-x11-2.0.so.0 for package: jigdo --> Processing Dependency: libatk-1.0.so.0 for package: jigdo --> Processing Dependency: libgdk_pixbuf-2.0.so.0 for package: jigdo --> Processing Dependency: libpango-1.0.so.0 for package: jigdo --> Processing Dependency: libgdk-x11-2.0.so.0 for package: jigdo --> Processing Dependency: libpangoxft-1.0.so.0 for package: jigdo --> Processing Dependency: libpangox-1.0.so.0 for package: jigdo --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package gtk2.i386 0:2.4.13-22 set to be updated ---> Package atk.i386 0:1.8.0-2 set to be updated ---> Package pango.i386 0:1.6.0-9 set to be updated --> Running transaction check Dependencies Resolved ===================================================== Package Arch Version Repository Size ===================================================== Installing: jigdo i386 0.7.3-1.el4.rf jigdo-0.7.3-1.el4.rf.i386.rpm 1.2 M Installing for dependencies: atk i386 1.8.0-2 base 170 k gtk2 i386 2.4.13-22 base 4.3 M pango i386 1.6.0-9 base 271 k Transaction Summary ===================================================== Install 4 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 5.9 M Is this ok [y/N]: y Downloading Packages: Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: pango ######################### [1/4] Installing: atk ######################### [2/4] Installing: gtk2 ######################### [3/4] Installing: jigdo ######################### [4/4] Installed: jigdo.i386 0:0.7.3-1.el4.rf Dependency Installed: atk.i386 0:1.8.0-2 gtk2.i386 0:2.4.13-22 pango.i386 0:1.6.0-9 Complete!
As you can see it's now installed and ready to go.
V3 DSA signature: NOKEY Error
If you get the following error when you attempt to install jigdo with yum:
warning: rpmts_HdrFromFdno: V3 DSA signature: NOKEY, key ID 6b8d79e6 Public key for jigdo-0.7.3-1.el4.rf.i386.rpm is not installed
then yum doesn't want to install it because you don't have the public key for the rpm file's repository installed. Refer to yesterday's post "Public key not installed error when installing from Dag RPM Repository" for details about how to install this, and you won't get the error when you install the jigdo RPM file.
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