LGPLv3 section 4e:
Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version.
GPLv3 section 6 goes on to say "Install Information" only applies for a "User Product".
If I am not releasing a "User Product", can I sell a "locked down device" (e.g. tivoization)?