Hold down c to boot from disc?

[Bathplug]

I'm trying to installion from disc. How long should the white apple screeb stay on for? And how long do I c?

Thanks

 

[MaskedCarrot]

I'm trying to installion from disc. How long should the white apple screeb stay on for? And how long do I c?

Thanks

Try holding down the OPTION key.

 

[Bathplug]

Thanks. The disk icon appeared.

 

[eh270]

I think one thing worth mentioning is that after Lion has been installed, holding CMD-R will boot into "Recovery mode"