If you have to install big packages in CQ5 it can be cumbersome. Uploading 2GB even locally take some time and the browsers uses memory. Here’s a nice workaround/solution.
cp ~/my-big-package.zip /path/to/cq/crx-quickstart/install
(create the install directory if not there)
monitoring the error.log you’ll see that OsgiInstallerImpl is monitoring that directory and will install the package.
I prefer to delete the package once the installation is completed but it’s not mdandatory.
If you’re installing a big set of DAM remember to disable the DAM workflows from the workflow launcher.
As installing packages is resource intensive, if you’re doing it on a live instance it’s better to plan and disconnect it for not causing disruption.