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Hi , i have just erased my Macintosh HD from Disk Utility to reformat my computer ( or to reinstall Mac OS X again), after reformatting the Macintosh HD , i proceed to insert the Mac OS X Installation Disk 1 , after rebooting the computer as asked and entering my language , my Mac sent me a message saying that "Mac OS X cannot be installed in this computer "
How do i resolve this problem?
iMac, Mac OS X (10.7.1)
Did your iMac come with Lion installed on it, and are you trying to install Snow Leopard? Lion doesn't use installation disks, hence the question. If yes, have you tried booting into Lion recovery mode (hold command and R keys when you reboot)? That should allow you to reload Lion over the internet.
iMac specs please.
When booted from the install disc, locate in Applications, Utilities, Disk Utility app.
When launched, in the right hand pane choose the erase tab. Then format using the partition tab the number of partitons, format OS X extended format, journaled, GUID partition scheme.
Did you do this?
Yes , my iMac is installed with Lion , and i am trying to install Mac Os x , 10.5.2 ( i believe , that is what the disk said) , and for some reason , i can't get into Recovery mode.
yes , i have done the partition tab thingy. And for the iMac specs , all that i can give you is that it is an intel based iMac dual core with 4GB ram . and it's version is 10.7.2 (OS X Lion)
You cannot install an operating system earlier than the Mac came pre-installed with, so if it came with Lion that's as far back as you can go.
If you've erased the drive and you can't boot into the Recovery HD it's probably erased that as well.
Do you have a Time Machine back-up so that you can restore to a state before doing the erase - hope so?
Well sadly , i forgot to backup my computer assuming that nothing will go wrong , well that was a mistake i shouldn't have done , now that i can't boot into any of the drivers , is there anything else that i could do to fix my mac ?
I have thought of installing Mac OS X Lion into another external hard disk and using that to startup my Mac and then fixing my Mac from there on . Is it possible?
If you have the Lion Installer file you should be able to create an installer/boot disk on a USB stick and re-install from that.
Thanks to everyone who have helped me through this . I hope that everything will run smoothly now 😀
Good luck.
Ermh , another question , with the problem i am facing now (stated in top post) , how can i install Mac OS X Lion from a thumb-drive? Could someone please guide me through this problem . Thanks
If you make the USB stick as described in the link above it should be a bootable drive. Once you've created the USB stick with Lion on it put it in the Mac you are trying to re-install the OS on. Restart holding the 'option' key and you should be presented with the choice to select the USB stick as the boot disk, From there it should be plain sailing.
I am not sure how that works with a download only OS, but this would work with a physical install discs.
If you had a OS X 10.6 Snow Leopard disc you could install that on the external drive, then update to Lion on the external drive and use an app like Carbon Copy Cloner or Super Duper to clone your OS X Lion back to your internal drive.
Your solution should work, Paul
;)
Once again , thank you all guys !
Well , i guess i have just encountered another problem.
the LionDiskMaker is only for Mac , my Mac is busted now and i only have my windows laptop left , is there anyway i can make the LionDisk from my laptop? (Windows)
PS:Sorry to bother you all from time to time
Mac os x cannot be installed on this computer
