1.3.4. Creating a Yum Repository

1.3.4. Creating a Yum Repository

To set up a Yum repository, follow these steps:

Procedure 1.1. Setting Up a Yum repository

Install the createrepo package:
```
~]# yum install createrepo
```
Copy all of the packages into one directory, such as /mnt/local_repo/.
Run the createrepo --database command on that directory:
```
~]# createrepo --database /mnt/local_repo
```
Important
Because RPM packages for Red Hat Enterprise Linux 6 are compressed using the XZ lossless data compression format, and may also be signed using alternative (and stronger) hash algorithms such as SHA-256, it is not possible to run createrepo on Red Hat Enterprise Linux 5 to create the package metadata for Red Hat Enterprise Linux 6 packages. The createrepo command relies on rpm to open and inspect the packages, and rpm on Red Hat Enterprise Linux 5 is not able to open the improved Red Hat Enterprise Linux 6 RPM package format.

This will create the necessary metadata for your Yum repository, as well as the sqlite database for speeding up yum operations.