Ok, try these two commands next
will it complete the repair that way?
If not, then your going to have to boot from the mac install disk, and then reisnatll the os as follows.
Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the Erase tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Highlight the drive, select Partition Tab, then Format type... MacOS Extended Journalled, select the Security Options button, choose Zero Out Data, Erase... after completion hopefully you'll be able to install.
Take note that if we have to reinstall, your going to lose all your data and files.. So if you have a second
mac. you may want to connect the two macs by firewire. And try to start this mac in Target disk mode as follows
- Start the broken Mac while holding down the ‘T’ key until you see a Firewire or Thunderbolt icon displayed on screen, this tells us the mac is now in target disk mode.
- Then, restart the working mac, and when it boots up.. It should pick up the other macs hard drive, and allow you to explore it and copy the files. ( unless the hard drive is too damaged)
Hopefully you wont have to backup the files and then reinstall the OS.
but if the last commands I sent also fail.. Then, this is the next step that we'd have to do to repair the mac.
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