Most files pertaining to RPM are kept in the /var/lib/rpm/ directory. For more information on RPM, refer to the chapter Chapter 10, Package Management with RPM. The /var/cache/yum/ directory contains files used by the Package Updater, including RPM header information for the system.
How do I know if rpm is installed on Linux?
Procedure
- To determine if the correct rpm package is installed on you system use the following command: dpkg-query -W –showformat ‘${Status}n’ rpm. …
- Run the following command, using root authority. In the example, you obtain root authority using the sudo command: sudo apt-get install rpm.
How do I know if rpm is installed?
You can use the following command to display the install date and time of all the packages installed on your system:
- rpm -qa –last. …
- rpm -qa –last | grep kernel. …
- rpm -q –last filesystem.
How do I find an rpm list?
List or Count Installed RPM Packages
- If you are on a RPM-based Linux platform (such as Redhat, CentOS, Fedora, ArchLinux, Scientific Linux, etc.), here are two ways to determine the list of packages installed. Using yum:
- yum list installed. Using rpm:
- rpm -qa. …
- yum list installed | wc -l.
- rpm -qa | wc -l.
How do I find the Linux version?
Check os version in Linux
- Open the terminal application (bash shell)
- For remote server login using the ssh: ssh user@server-name.
- Type any one of the following command to find os name and version in Linux: cat /etc/os-release. lsb_release -a. hostnamectl.
- Type the following command to find Linux kernel version: uname -r.
How do I check if something is installed in Linux?
apt list tells you if your package is installed. apt list package shows the version of a package that is or would be installed, along with the names of the repository components that provide it and the version. When the package is installed, [installed] appears prominently at the end of the line.
What is var lib RPM packages?
Resolution. The directory /var/lib/rpm is a RPM database holds information about all the RPM packages installed on the system. … 001 and similar files are lock files used by the RPM system. The other files are databases in Berkeley DB format. The most important file is Packages.
How do I restore an rpm database?
Solution
- Make a backup of /var/lib/rpm/ files. mkdir /var/lib/rpm/backup cp -a /var/lib/rpm/__db* /var/lib/rpm/backup/
- Remove the database files to avoid stale locks. /var/lib/rpm/__db rm -f /var/lib/rpm/__db.[0-9][0-9] rpm –quiet -qa.
- Rebuild the RPM database. rpm –rebuilddb yum clean all.
How do I force an rpm to install?
To install or upgrade a package, use the -U command-line option:
- rpm -U filename.rpm. For example, to install the mlocate RPM used as an example in this chapter, run the following command:
- rpm -U mlocate-0.22.2-2.i686.rpm. …
- rpm -Uhv mlocate-0.22.2-2.i686.rpm. …
- rpm –e package_name. …
- rpm –qa. …
- rpm –qa | more.
How do I copy an RPM package?
If you want to save a copy of the package as currently installed before upgrading or removing it, use rpm –repackage — it’ll save the RPMs in /var/tmp or /var/spool/repackage or elsewhere, depending on your configuration. Otherwise, there exists rpmrebuild , which does exactly what you ask for.