mac stuck at apple logo on installation
I was in installing MacO Sierra but when I select "boot from usb "
It stuck on a black screen with white apple logo
If you are trying to install from a USB stick, it appears the stick wasn't created properly.
You can make a bootable USB stick to install using these free programs which will do all the work for you.
Bootable USB Flash Drive – Diskmaker X Disk Creator oruse Apple’s method Create a bootable installer for OS