How to check the changelog of a package on Linux

Question: When I install or upgrade a package on Linux, I want to find out what changes (e.g., new features or bug fixes) have been made in the package before or after installing it. How can I view the changelog of a (Deb/RPM) package on [Debian, Ubuntu, CentOS, Fedora]? When a program or a library […]
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How to enable ELRepo repository on CentOS or RHEL

Question: I would like to install a device driver from ELRepo on my CentOS box. How can I install and enable the ELRepo repository on [CentOS or RHEL]? While CentOS/RHEL platforms maintain several official repositories (e.g., base, updates, contrib), they are lacking in terms of software coverage and release cycles. To bridge the gap between […]
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How to list all installed packages on CentOS or RHEL

Question: I want to find out what packages are installed on my CentOS box, so that I can replicate all the installations on another computer. Is there a way to get a full list of all RPM packages that I installed since I set up my initial CentOS system? When you want to create a […]
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How to use yum to download a RPM package without installing it

Question: I want to download a RPM package from Red Hat’s standard repositories. Can I use yum command to download a RPM package without installing it? yum is the default package manager for Red Hat based systems, such as CentOS, Fedora or RHEL. Using yum, you can install or update a RPM package while resolving […]
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How to enable Nux Dextop repository on CentOS or RHEL

Question: I would like to install a RPM package which is available only in Nux Dextop repository. How can I set up Nux Dextop repository on CentOS or RHEL? Nux Dextop is a third-party RPM repository which contains many popular desktop and multimedia related packages (e.g., Ardour, Shutter, etc) for CentOS, RHEL and ScientificLinux. Currently, […]
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How to disable PackageKit on CentOS, Fedora or RHEL

Question: When I tried to install a package with yum command on [CentOS, Fedora or RHEL], I got the error saying that “Another app is currently holding the yum lock; waiting for it to exit… The other application is: PackageKit”. PackageKit seems starting automatically in the background, interfering with yum command. How can I disable […]
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