crwdns2934241:0crwdne2934241:0 rab777hp

crwdns2934249:0crwdne2934249:0:

Actually try a software fix first, hold down the option key while booting and select your HD. Then change the preference for startup disk in system preferences.
But this usually happens because your HD is fried, will probably need replacing.

crwdns2915684:0crwdne2915684:0:

open