Applies to SUSE Linux Enterprise Server 15 SP5

13 Prepare a disk for cloning with the system cleanup tool #

The clone-master-clean-up tool that ships with SUSE Linux Enterprise Server makes it possible to remove data from the disk that you do not want to include in a clone. This chapter describes how to use the tool.

13.1 Cleaning up unique system identifiers #

Warning: Do not use the tool on a production system

As the cleanup tool removes essential system configuration data, it is not recommended to use it on a system that is used in production. Run the tool on the cloned image instead.

The clone-master-clean-up tool removes the following data:

swap files
Zypper repositories
SSH host and client keys
temporary directories, like /tmp/*
Postfix data
HANA firewall script
systemd journal

To install clone-master-clean-up, run the following command:
```
> sudo zypper install clone-master-clean-up
```
Configure the tool by editing the /etc/sysconfig/clone-master-clean-up file. Here, you can specify which specific data the tool should remove.
Run the script to perform a cleanup:
```
> sudo clone-master-clean-up
```