CAPM vs Minimum liability frontier assumptions

Hi, I read that to construct the minimum liability frontier, you need to know E®, variance and correlation. I also read than a CAPM assumption is that you only need to know the E®, variance and covariances. Looks to me like this equate to the same thing. Is this deduction correct? Thanks, Andrew

Isn’t CAPM the SML, which relate to E® over beta. It measures systematic risk.