Use custom action with code likeInstallerResources resource = (InstallerResources) proxy.getService(InstallerResources.class);long spaceRequired = resource.getRequiredDiskSpace() But it works not precisely, especially when you have 3rd party jars inc...
You can change uninstaller log destination by editing appopiate properties for uninstaller. Click on button "Edit Properties" for your uninstaller and add some values for lax.stderr.redirect and lax.stdout.redirect properties (better to have same des...