Cloned internal disk won't boot

[dariusp]

I am experiencing some very strange behaviour and would appreciate any assistance or advice.

I have an old MBP I have been using as my own with no issues (other than speed.) I upgraded to a new MBP (very nice) so thought I would use the old MBP to clone my wife's iMac (as it needs to go in for a screen repair.)

I have cloned my wife's iMac using SuperDuper and booted the old MBP using the external drive. I then cloned this external drive to the internal HDD of the old MBP. However I cannot now see this internal drive as a startup disk. I have tried this twice with the same effect both times.

Any obvious things I'm doing wrong?

Thanks

Darius

[dariusp]

Turns out a reboot (forced) and repair disk fixed the issue.

[dnanian]

Glad to hear it - I couldn't come up with any reason why it wouldn't be "seen", but needed to ask what, exactly, that meant.