crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

Try opening from the recovery partition by holding down the Option key on start up and selecting it.  Then rune Disk Utilities.  That fail do the same but run the reinstall from the repair partition.

crwdns2915684:0crwdne2915684:0:

open