If the drive itself is dead, you may have to send it to someone like DriveSavers for recovery (which is expensive). If it's just a cable/connector problem, repairing it and getting your data back is pretty straightforward. There are several common ways people can verify file system integrity in OS X, including booting to Safe Mode, using Disk Utility, or running the 'fsck. If you want to try, there are guides at if not, find a repair shop to do it for you. Safe Boot or Disk Utility vs 'fsck' in OS X. Recent Apple laptops are not very easy to work on, so you may not want to risk doing this yourself. To startup your computer with Mac OS X Server 1.2, you use System Disk Utility 2.6.2 to select your Mac OS X Server 1.2 hard disk, then you restart your computer. In any of these cases, the only chance you have to get data off is will involve opening up the computer, checking cables and connections, and maybe removing the HD. The disk itself may be dead, or a cable torn, or a connector knocked loose. Since I don't see any sign of your internal drive, even at the /dev entry level, I'm pretty sure you have a hardware problem that nothing like DiskWarrior will be able to help with. The rest are all virtual disks of one sort or another - /dev/disk1 ("Mac OS Base System") is a disk image mounted from the USB disk, and the rest are RAM disks used by the Recovery system. The Disk Utility interface is the same one you’ll see on your Mac OS X desktop, but run it from here and it’ll be able to repair problems with your system drive. ![]() Select the drive or partition you need to repair and click the First Aid button. ![]() ![]() dev/disk0 (the USB installer disk) is the only physical disk visible here. In OS X Recovery, click the Disk Utility shortcut to launch the Disk Utility here.
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