New hard drive - format and install OS X

My old hard drive crashed and I replaced it with a new one on my IMac 27" (EMC no 2374). Now I am trying to install it OS X 10.6 Snow Leopard threw a flash drive because I don't have the cd but it freezes. When pressing Option at startup I get the the choice to install Max OS X but when I press enter it freezes with the Apple logo on the screen. The keyboard (wired) dies, also the mouse.
Must I have the cd to format a new hard drive or is there any other way?

You'll need to contact Apple and order a set of Original System Discs for your model iMac for a small fee.
Not sure where you got the USB of Snow Leopard but USB sticks of Snow Leopard only came with the Air model Mac computers and that won't work on a iMac. It is Model Specific as are the discs that come with all Mac computer when Mac computers came with DVD discs or thumb drives.
You'll need them anyway to reinstall the included iLife Apps. Those aren't included with OS X.

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I install new hard drive 500gb and i still have 400gb available but my macbook run very slow getting rainbow all the time on screen

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First boot into recovery and select Disk Utility>First Aid and repair the disk.
If there is no improvement, perform a Safe Boot:
http://support.apple.com/kb/ht1
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Format is found in the Erase Tab:
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My hard drive crashed on my Imac 24" 2009, i put in a new hard drive 2TB and a SSD drive 240 GB and removed the opticdrive. What external DVD can I get to work with the IMac? The Apple super drive is not compatible.

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Installed new hard drive, formatted, mavericks won't install, says need 2GB or more memory, I have 8GB memory

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New hard drive won't install in my macbook pro 13"

Hi everyone
I have recently been having problems with my mac book where I was constantly seeing the spinning beachball. I had wiped the hard drive and was still having this problem so took my mac book to a "genius" at my local mac store who told me that the hard drive was faulty. I was out of warranty so he advised me how to change the hard drive and recommended me to install a crucial 240gb M500 SATA 6Gbps 2.5 SSD. I have now fit this into my mac book and have done internet recovery to allow me to get to Disk Utility. My computer recognises the new Hard drive but when I got to erase the disk to enable me to install the operating system it just hangs attempting to unmount the hard drive. I left it over night and nothing happened. IS there something I have done wrong or is there another way of me installing the operating system onto the new hard drive?
Many thanks in advance

Hi Clinton:
off topic: remembering your beautiful 980GB M500, i want to point to two things that I came repeatedly by:
1. the M500 has more "overprovisioning" than most other Crucial ssds ( I thought that you might want to hear that.
2. Lately I hear more and more comments by respectable manufacturers that Trim in Mac OSX should be avoided: the "enabling" softwares are a bit crippled software and there are many timing faults at the file level communications, which are counterproductive.
So I followed the recent comments of a OWC staff member:
"One way to live without TRIM on OSX is just reduce the volume on the drive and leave the unallocated space...unallocated. If you have a 240GB drive I suggest removing 40GB.
The drive will map this into the over provisioning and move the space in and out of use on the volume very quickly...almost faster than TRIM does
Also remember the drives do have garbage collection and will look after themselves if given the chance too".
So I restored the complete original IOAHCIFamily.kext ( by running a Combo Update) on all my SSDs, and with DiskUtility I dragged the bottom of the startup partition up for about 40GB and left it unallocated (no format).
I remember that you did not install Trim (?), but to be sure I send this to you.
Have fun my friend,
Lex

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New Hard drive - Can't install OS X

Hi
I have a fairly old macbook (unsure what make etc) I bought it as a restored one in 2012.
Recently I got the grey screen of death with the folder and flashing question mark. I took the macbook into apple where i was told that the harddrive was dead, the kind gentleman told me I needed to order a new one - which I did - The HDD Scorpio BLU 500GB 2.5 SATA 6Gbs 8MB.
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How is it formatted?
In order to install OS X, it must be formatted as Mac OS Extended and GUID partition mapping.

New hard drive, can't install OS

I had a new hard drive installed for my iMac and am now trying to install my OS so I can restore from a backup.
I tried verifying the HD and repairing the HD but messages I get in the disk utility are "Error: Filesystem verify or repair failed" both times.
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Solved!
Go to Solution.

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I installed a new hard drive and tried unsuccessfully to restore from Time Machine backup several times before giving up and installing a fresh OS Mavericks.
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uninstall (if you can), or delete (if you can't uninstall) everything adobe that you 'dragged', clean (Use the CC Cleaner Tool to solve installation problems | CC, CS3-CS6) and properly install adobe programs with the adobe installers.
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window using the Lightroom 3 link to see those 'Important Instructions'.

New hard drive - format and install OS X

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