How Yum Works?

-

How YUM works?

Yum is default package used in Linux based operating system. By default it uses SQLite database to retrieve information of available dependency of packages.





Yum use Createrpo Package to create repository of the available packages to remove dependency and createrepo create table of packages dependency in the SQLite database.

So when yum create a query to install a package

  • First yum search the configuration file listed in path (/etc/yum.repos.d) what repositories are available in the system.
  • Yum update the all repositories available in the configuration file to search the package available.
  • When yum find the package, it resolve the dependency listed in the SQLite database.
Yum used list of command to install, update, delete and upgrade to resolve dependencies.
  • check-update - Check for available package updates
  • distribution-synchronization - Synchronize installed packages to the latest available versions.
  • version - Display a version for the machine and/or available repos.
  • resolvedep - Determine which package provides the given dependency.
  • list-arches - Display aggregate data on the arch attribute of a group of packages.
  • list-archive-sizes - Display aggregate data on the archive size attribute of a group of packages.
  • list-baseurls - Display aggregate data on the URL attribute of a group of packages.
  • list-buildhosts - Display aggregate data on the build host attribute of a group of packages.
  • list-committers - Display aggregate data on the committer attribute of a group of packages.
  • list-groups - Display aggregate group data, for matching members.
  • list-installed-sizes - Display aggregate data on the installed size attribute of a group of packages.
  • list-licenses - Display aggregate data on the license attribute of a group of packages.
  • list-package-sizes - Display aggregate data on the package size attribute of a group of packages.
  • list-packagres -Display aggregate data on the packager attribute of a group of packages.
  • list-rpm-groups - Display aggregate data on the group attribute of a group of packages.
  • list-vendors - Display aggregate data on the vendor attribute of a group of packages. 


Comments

Post a Comment

Popular posts from this blog

Managing Vm's with Virish

-
Virsh is a command line interface tool for managing guests and hypervisor. Virsh is a program which uses libvirt to manage KVM Virtual Machines. Virsh Life Cycle to Manage VM's Connect to Hypervisor virsh connect<machine name> $ virsh --connect qemu:///system Create a Virtual Machine from Virsh Create a new instance from virsh console we need an xml file where the template of virtual machines is created. In template we define the requirements of the machine. VM can be created from XML Configuration file. To create a guest with  run the following:- virsh create configuration_file.xml suspending a VM virsh suspend [domain-id, domain-name or domain-uuid] Resuming a VM virsh resume [domain-id, domain-name or domain-uuid] Restoring a VM virsh restore [filename] Saving a VM virsh save [domain-id, domain-name or domain-uuid] Rebooting a VM virsh reboot [domain-id, domain-name or domain-uuid] command
Read more

Steps to install Ubuntu

-
Steps-->> Video Help You have to install and download VMware Workstation. Then after installing it follow these steps.... Click on the Create New Virtual Machine. Choose Custom Option, and Click on Next. In the Next step you have to see whether your system meets the minimum requirements or not, if it does, then click on Next. Next Step is to choose the Option for the OS you want to install whether through an ISO image or with the help of CD/DVD. After choosing this you have to give a username and password for the OS you are installing it is mainly the admin password. After that you have to choose the folder to where the OS you want to put in. After that you have to assign the RAM to the OS, and after that you should assign the network type if you want to connect to the web on that OS. After that you have to assign the space to the OS, how much you want to give. At last you just have to Power on the Virtual Machine you have created, and its all done.
Read more