I bought a new hard drive for my 2011 MacBook Pro and did the following steps:
- Backup using Time Machine
- Replaced the hard drive
- Put in a Snow Leopard DVD (10.6 from ~2009)
- Booted holding down the c key
I can hear the DVD spinn for a while but I never get past the Apple logo in the boot, no error message.
Why isn't it working?