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Oracle Linux: Behavioural Differences Between uln-yum-mirror and dnf reposync ULN/YUM Software Mirroring Methods (Doc ID 2808215.1)

Last updated on AUGUST 20, 2023

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Linux x86-64
Linux x86
Linux ARM 64-bit


Oracle Linux (OL) provides the ability for users to configure a local YUM server within their own networks to mirror channel / repository content from Unbreakable Linux Network (ULN) or Oracle YUM Server.
Oracle offers the following two methods for configuring local YUM mirror servers:

Whilst both methods perform the same function, each does so differently than the other.
This document serves to highlight differences in behaviour between uln-yum-mirror and dnf reposync methods.

This document does not apply to Oracle Linux Manager (OLM, formerly known as Spacewalk) that offers complete software life-cycle automation and management of Oracle Linux environments.


This document is intended for those responsible for maintaining local Oracle Linux software mirror systems.
The document may be used to better understand the default behaviour of a given mirroring method or to account for potential changes in behaviour when switching between mirroring methods. 


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In this Document
 1. Documentation and Installation
 2. Configuration
 3. Synch Automation
 4. Local Repository Location and Directory Structure
 5. Logging
 6. Download latest or all package versions
 7. Remove Local Packages When Removed From Source
 8. Download Source (.src) Packages
 9. Local Package Consumption

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