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Can't install MAC OS X Lion - Macintosh HD "This disk cannot be used to start up your computer."

I downloaded OS X Lion this morning and when I went to install it I got a "Screen - Select the disk where you want to install OS X." -- Had two disk my Macintosh HD and my Time Machine (both are 1TB). The top and most important is the Macintosh HD (999.86GB - 739.75GB available states "This disk cannot be used to start up your computer". What do I need to do to install OS X Lion?

20" intel-based iMac, Mac OS X (10.5.7)

Posted on Jul 20, 2011 8:48 AM

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174 replies

Jan 28, 2012 2:30 PM in response to Dancepal1948

Hi,

I installed Mac OS X Lion 10.7 just last week. now the update of the latest version is 10.7.2, I tried to install this update but it appear to install first the 10.7.1. here's my problem, I download the update 10.7.1, but on the process of selecting destination it appears "Mac OS X server update can't be installed on this disk. This Volume does not meet the requirements for this update."

any help from anyone, would be much more appreciated.

Mar 2, 2012 1:00 PM in response to Dancepal1948

Hi i found these 2 things that maby can help:


1. Go to Disk Utility and open it

/Applications/Utilities/

2. Select the main disk. Not the disk where OS X Snow Leopard is installed on

3. Go to Partition

4. Make the Machingtosh HD Partition 1 GB Smaller (or 128 MB)

5. Click Apply

6. Start the OS X Lion instalation again.


i found this on the Apple support page for more info go to:

http://support.apple.com/kb/TS3926


or you can do this


ds store



Create a Backup Lion Bootable 10.7 Disk

Purchaseand download Lion from the Mac App Store on any Lion compatible Macrunning Snow Leopard.

  1. Right click on “Mac OS X Lion” installer and choose the option to “Show Package Contents.”
  2. Inside the Contents folder that appears you will find a SharedSupport folder and inside the SharedSupport folder you will find the “InstallESD.dmg.” This is the Lion boot disc image we have all been waiting for.
  3. Copy “InstallESD.dmg” to another folder like the Desktop.
  4. Launch Disk Utility and click the burn button.
  5. Select the copied “InstallESD.dmg” as the image to burn, insert a standard sized 4.7 GB DVD, and wait for your new Lion Boot Disc to come out toasty hot.

With this disc you can boot any Lion compatible Mac, and install10.7 just like you installed previous version of Mac OS X. You caneven use Disk Utility's Restore function to image your Lion boot discimage onto a external drive suitable for performing a clean installon a optical-drive-less MacBook Air, or Mac mini server.



If your using Mac's in a mission critical type environment or have third party hardware or software you must rely upon working correctly. It's advised to wait until all the bugs, driver updates, third party software updates and other issues are resolved before upgrading. This might take several months. Then if you do so, do one machine at a time and carefully test everything before full deployment.

It's also highly advised to backup all one's data either manually to a external powered drive in addition to TimeMachine and Hold option bootable Carbon Copy Clones etc.


Jul 23, 2012 11:11 PM in response to andrew167

Why do folks keep suggesting this when it is not possible? Even tried disk utilies fire from another Mac.

This does not work. In disk utilities, selecting the drive, not the volume, and partition, it will not let you make any changes. Any other bright ideas? (Fresh reinstall of 10.6.8, all updates done, never backed up. Repaired permissions, repaired disk from install disk, tried installing from DVD and target disk from another Mac.) No other partitions.

Can't install MAC OS X Lion - Macintosh HD "This disk cannot be used to start up your computer."

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