To view the currently running kernel, use the uname command. Use yum list kernel to list all installed and available kernels.

TheĬonfiguration files hold a list of packages to always install even if the administrator requests an Using yum update kernel will actually install the new kernel.

If the new kernel fails to boot, the old kernel is still available. Since a new kernel can only be tested by booting to that kernel, the package is specifically designed so that multiple versions may be installed at once. With no PACKAGENAME specified, it installs all relevant updates. Generally the process tries to preserve configuration files in place, but in some cases, they may be renamed if the packager thinks the old one will not work after the update. Yum update PACKAGENAME obtains and installs a newer version of the specified package, including any dependencies. Yum install PACKAGENAME obtains and installs a software package, including any dependencies. Installing and removing software with yum To find packages that provide the /var/www/html directory, use: Yum provides PATHNAME displays packages that match the path name specified (which often include wildcard characters). To get information on the Apache HTTP Server: Yum info PACKAGENAME* returns detailed information about a package, including the disk space needed for installation. To search for packages that have 'web server' in their name, summary, and description fields, use search all: Yum search KEYWORD lists packages by keywords found in the name and summary fields only. Yum list displays installed and available packages. You can get a history of transactions performed and work with multiple Red Hat and third-party software repositories. The yum command allows you to install, update, remove, and get information about software packages and their dependencies. Yum is designed to be a better system for managing RPM-based software installation and updates. Package repositories or resolve dependencies from multiple sources automatically. The low-level rpm command can be used to install packages, but it is not designed to work with INSTALLING AND UPDATING SOFTWARE PACKAGES WITH YUMĪfter completing this section, you should be able to find, install, and update software packages,

Yum local install