

If I select the system HD then the restart completes and operation appears normal.However, on the next restart it does the same thing, i.e., it's not clearing whatever state it thinks it's in.I bought the MacBook new and it came with High Sierra installed, so it's never had any other OS on it nor have I downloaded any installer package (that I know of. However, if I restart and hold down the Option key it gives me to option to start up from my system HD or from this thing called the installer (and it is the selected item).

If I simply "Restart" it loops through and displays this screen again. When the computer restarted, it displayed a screen that said macOS could not be installed on your computerThe path /System/Installation/Packages/OSinstall.mpkg appears to be missing or damaged.Quit the installer to restart your computer and try again. (plus system updates) - this ran for a couple of hours and required a restart to complete the installation. I just ran the App Store updates that caught me up on all the apps like Pages, etc.

Why is the OS installer trying to launch on restart? I bought a new MacBook Air 2 days ago.
