You can install WebSphere® Application Server Liberty Core by using Installation Manager, by extracting downloaded archive files, or by using the WebSphere Application Server Developer Tools for Eclipse. With all methods, you can also download and install assets from the Liberty Repository.
About this task
- Installation Manager provides managed installations, allows for in-place updates, and is the same tool that is used to install many other IBM® products.
- Archive files are lightweight, easily customizable, and are better suited for cloud deployments.
The following table compares the available installation methods for WebSphere Application Server Liberty Core.
|Installation method||Installation Manager||Archive|
|Install directly to any fix pack level.||Yes||Yes|
|Apply fix packs in place.||Yes||No|
|Apply interim fixes in place.||Yes||Yes|
|Automated rollback of fix packs and interim fixes||Yes||No|
|Upgrade product editions.||Yes||Yes|
|Pluggable Java™ SDK provided||Yes||No, if you want to download an IBM SDK for use with archive installs, see IBM Java SDKs for WebSphere Liberty.|
|Integrated with developer tools||No||Yes|
|Add features in place.||Yes||Yes|
|Liberty Repository integration||Yes||Yes|
|z/OS® packaging provided||Yes||No|
|Minification supported||Yes, but the output of the minify command is a new image that can be serviced only with archive procedures.||Yes, the output of the minify command is a new image.|
Install Liberty using
Installing or updating to Liberty fix pack 126.96.36.199 or later requires IBM Installation Manager Version 1.8.5 or later.
Through version 188.8.131.52, the minimum acceptable version of IBM Installation Manager is 1.8.5.
As of version 184.108.40.206, the minimum acceptable version of IBM Installation Manager is 1.9.0.
Install Liberty using the
downloaded files and archives.
You can install Liberty from a self-extracting Java archive file or a ZIP archive file.
- Install Liberty developer tools and optionally the Liberty server.