Mac Lion Os X 10.7 - Installesd.dmg Download Fix -

If you need Lion for a legacy Mac or software, the path is to retrieve it from Apple directly via Internet Recovery or your Apple ID purchase history. If you never bought Lion and Apple no longer offers it, you may need to consider that Lion is no longer supported (no security updates since 2014) and should not be connected to the internet.

A Mac running a compatible OS (like High Sierra or older) to use Disk Utility. Plug in your USB drive and open Disk Utility . mac lion os x 10.7 - installesd.dmg download