New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

HELP-My new iMac won't re-install OSX +


Post Reply New Thread Subscribe

 
Thread Tools
pedropete

 
Member Since: Sep 11, 2010
Location: Moved to Spain in 2000 after enforced early retirement and a bad divorce
Posts: 154
pedropete can only hope to improve
Mac Specs: iMac24,iMac27,iMac21.5-i3,iPhone4-32gb,iTouch3.32gb,iPad1,Apple TV,iPodClassic160gbx2

pedropete is offline
I have had a new iMac 21 with i3 and 500gb hard drive for 3 months, but recently had a few minor problems.
I did an Onyx scan which told me that the disk was in need of repair, so I had backed-up all my files and data and applications to an external hard drive just in case.
I then used the Migration Assistant just to do a double check but gave up on it when it spent aeons trying to calculate the size of my music, film and photo files to transfer!
Then - without doing anything, although I intended to do a clean install with the original supplied OSX and Apps. disks - the machine switched to a small window asking for my password - which it then refused to accept - even though I know it was correct etc
I have left it switched off for about 5 days and tried again this morning with the same result.
Anyone got any ideas what is wrong - and how I can successfully re-install OSX from the disk ??
As I bought a new iMac27 with i5 a month later, I may have mistakenly inserted that Install disk which is a later version being 2011 instead of the iMac 21's 2010 version - so when I held down key C I am allowed to start the installation process, but then get a message saying -'It is not possible to upgrade this version of OSX .'

Live each day as it comes - it may be your last !?
QUOTE Thanks
Chilbear

 
Chilbear's Avatar
 
Member Since: Jun 14, 2007
Location: Toronto
Posts: 574
Chilbear is on a distinguished road
Mac Specs: 2xiMac24 w Parallels 6 (1x White, 1x Aluminum), iPhone 3GS with iOS5

Chilbear is offline
Do you have the original OS disk (s) that came with your 21 iMac? If yes then insert Disk 1 and use it to start up from. Then Repair the HD using Disk First Aid but do not reinstall the OS - yet. If the repair of the HD goes as expected you will be good to go. If you get HD errors that cannot be repaired then try formatting and reinstalling the OS. Worst case is the HD is damaged and if under warranty will be repaired.
QUOTE Thanks
pedropete

 
Member Since: Sep 11, 2010
Location: Moved to Spain in 2000 after enforced early retirement and a bad divorce
Posts: 154
pedropete can only hope to improve
Mac Specs: iMac24,iMac27,iMac21.5-i3,iPhone4-32gb,iTouch3.32gb,iPad1,Apple TV,iPodClassic160gbx2

pedropete is offline
By 'Disk 1' I assume you mean the OSX Disk ?
If so - it only loads if I press down ' C '- and then the above non-starter procedure happens !

Any one else - PLEASE ?!?

Live each day as it comes - it may be your last !?
QUOTE Thanks
pedropete

 
Member Since: Sep 11, 2010
Location: Moved to Spain in 2000 after enforced early retirement and a bad divorce
Posts: 154
pedropete can only hope to improve
Mac Specs: iMac24,iMac27,iMac21.5-i3,iPhone4-32gb,iTouch3.32gb,iPad1,Apple TV,iPodClassic160gbx2

pedropete is offline
Only one reply - experts ?!

Live each day as it comes - it may be your last !?
QUOTE Thanks
pedropete

 
Member Since: Sep 11, 2010
Location: Moved to Spain in 2000 after enforced early retirement and a bad divorce
Posts: 154
pedropete can only hope to improve
Mac Specs: iMac24,iMac27,iMac21.5-i3,iPhone4-32gb,iTouch3.32gb,iPad1,Apple TV,iPodClassic160gbx2

pedropete is offline
I am absolutely staggered at the lack of response to this problem !

Live each day as it comes - it may be your last !?
QUOTE Thanks
DeanP

 
Member Since: Jul 16, 2011
Location: Auckland, NZ
Posts: 80
DeanP is on a distinguished road

DeanP is offline
1. Boot up your 21.5" iMac
2. Insert the OS X disk (the one that came with your 21.5" iMac)
3. Restart your iMac
4. Hold down the C key immediately, and keep it pressed until your iMac boots from the DVD.

Do Step 4 again - instead, hold down the Option Key.
QUOTE Thanks

Post Reply New Thread Subscribe


« New iMac HDD noise? | Upgrade my mac mini processor »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
1999 Imac 333Mhz OS install Issues oltamak Apple Desktops 7 07-18-2011 09:19 PM
iMac i5 27" formated now cant install OSX please help Mali_mrav OS X - Operating System 5 06-26-2011 08:57 AM
Problems About Install Programs To My IMac !!! BTumnontigoon Apple Desktops 1 09-11-2010 02:22 PM
iMac G4 can't read Tiger install DVD, can read other DVD's though? lee_3033 Apple Desktops 4 12-27-2009 04:28 PM
Wiping OSX and clean instal - however install disks don't work andybowie OS X - Operating System 6 11-01-2009 05:36 PM

All times are GMT -4. The time now is 10:41 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?