Issues While Attempting to Clean Install Yosemite onto 2010 iMac 27"

Having a number of issues trying to clean install Yosemite onto a 2010 iMac 27.
The original 1TB HDD was about to die so I upgraded the hard drive to a Crucial SSD, via an Apple Authorized shop
Memory was also upgraded to 16GB (from the original 4GB)
The install process won't finish, as I get a disk error message from the computer
Since there's no fan control cable attached to the HDD anymore, the fan is on constantly (but I know this is a known / common issue so I will be fixing it via an app like HDD Fan Control)
The installation process keeps starting over
What is causing this installation issue? How can I fix and move forward?
Thanks in advance for help anyone can provide.

I've also tried an alternate method of installing - installing Yosemite onto an external hard drive then cloning this drive onto the SSD installed on the iMac. The computer keeps rebooting. This is the message that pops up. Growing increasingly frustrated. Is this a hardware issue related to the new SSD?

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Clean Install Yosemite onto new SSD (Also, what is TRIM?)

Hi,
I've been researching how to replace the Hard Drive on my Late 2011 13inch Macbook Pro (MacBookPro8,1 / 2.4 GHz / Intel Core i5 / SATA III) with a new SSD (maybe a Samsung 840 EVO) and clean install Yosemite onto it. I've found a few ways to do this on the support forums and the macrumors forum, but I want to confirm if I can do it this way:
1. Plug new SSD into the Macbook via a USB cable
2. Download Yosemite onto current Macbook Hard Drive. When I'm prompted to install, chose the new SSD from the list. Complete Installation.
3. Remove old Hard Drive from Macbook and plug new SSD in it's place (and not in the optical bay).
Would this work? I have another external hard drive with all of my documents, pictures and music on which I'm just going to manually remove over, and have no problem doing. I can also download the iLife programs directly from the App Store so I wouldn't be missing out on those either (I do have the iLife '09 discs too). I've also read about creating a bootable USB using DiskMaker X, but I feel the route I outlined would be easier.
Am I missing anything? I do have the EFI Firmware v2.7, so the problems the 2011 MacBooks were having with SATA shouldn't be an issue during this. Also, during my research, I found a references to something called TRIM. Can someone explain TRIM to me?
Thanks,
Steve

Thanks for the response and confirming I can clean install Yosemite onto a new SSD using the process I listed in my initial post.
I have a 13'' MacBook Pro with Yosemite already installed onto it so my graphics card should be set. After almost a month of using it, I haven't noticed any issues on that end.
I guess this TRIM thing is a totally separate subject from this thread. I read Apple is no longer supporting third-party SSD for TRIM support. If you turn it on, but keep a security feature on, you risk your computer not booting correctly. It looks like the only way to have TRIM enabled on a SSD using Yosemite is to have an Apple supplied SSD, or an SSD that can trick Yosemite into thinking it's Apple supplied (like the Angelbird Wrk for Mac SSD).
I've also done a good amount of research that TRIM is only necessary if you're saving a lot of items to the hard drive in one sitting (like photoshop). I primarily use my Mac for Pages (which saves my documents into the cloud now), iTunes and Safari. I guess this would fit me into the "casual user' criteria? I've also read that if you don't use TRIM, your SSD uses "Garbage Collection" (which actually sounds terrible) to keep the SSD informed on what data can be overwritten since it's been deleted by the user. I read that most modern SSD hard drives have a pretty decent Garbage Collection function, so if you leave your computer idle, keep "Put the hard disk(s) to sleep when possible" unchecked, the SSD will run Garbage Collection on it's own and that should be sufficient enough to keep the SSD in good working order.

When about to install Yosemite onto my Imac it tells me I wont be able to access old Word and Excel files.Is there a solution to this ?

When about to install Yosemite onto my Imac it tells me I wont be able to access old Word and Excel files.Is there a solution to this ?

Use Office 2008 or 2011, LibreOffice, or similar software to access them.
(118700)

I want to install Yosemite onto an external hard drive, and keep Snow Leopard installed on the internal hard drive. I want to be able to boot from either system, depending upon circumstance (at least until Yosemite is stable). Is this possible?

iMac, Model Identifier iMac12,1 with 121.5" screen, 2.8 GHz Intel Core i7 processor, 8 GB 1333 MHz DDR3 memory, 1 TB internal hard drive, running Snow Leopard 10.6.8 from internal drive.
I want to install Yosemite onto a 1 TB external hard drive (OWC) , and keep Snow Leopard installed on the internal hard drive. I want to be able to boot from either system, depending upon circumstance (at least until Yosemite is stable). Is this possible?

It is possible. I'll let you read some articles that cover the setup:
Starting from an external USB storage device (Intel-based Macs) - Apple Support
or
http://osxdaily.com/2013/06/22/boot-mac-external-drive/

Instructions to clean install Yosemite to a fusion drive

Hi everyone this is Chris. I have recently purchased a new i mac 27 inch with a 1tb fusion drive. When i tried clean installing yosemite to the fusion drive i noticed that only the 1tb mechanical hard drive appeared. The 128gb ssd portion was missing and yes i checked in diskutil list but it is non existent. Also i noticed that logical volume partition was missing in disk utility so it looks like the yosemite install didnt also set up the ssd as i thought it would. I am attaching a screen shot of disk utility and diskutil list for reference. Could some one please help me with step by step instructions from booting the usb installer till the final installation. I am a new mac user and as such have little experience with the way the os and systems work. The reason i tried to clean install is because i like having control over everything running on my computer and i like to keep a clean system from the beginning. I am willing to learn just how mac osx functions so please help me learn how all these various software works on the i mac so i can use it as much as i did my old windows pc. Any help would be appreciated and thanks in advance.
Disk Utility screenshot 1
Disk Utility screenshot 2
Terminal window

I concur with Kappy, you do not have a Fusion Drive in that Mac.
You said; "The reason i tried to clean install is because i like having control over everything running on my computer and i like to keep a clean system from the beginning."
Personally I disagree with your reasoning for a so called "clean" install. Unlike Windows, if you install OS X just doing an upgrade, it does not have to same habit as the Windows installer which can load a PC with tons of crap.
My suggestion is to find out why your 128 GB SSD is not appearing rather then worrying about any "clean" installs.

How to get iPhoto and iTunes to a clean installed Yosemite from Time Machine

I wiped the Hard Drive and clean installed to OS X Yosemite. For Some reason, some of my Time Machine back ups disappeared or got deleted and it wasn't even full. I had back ups from 2011 and now it only starts from 2013 of June.
Next....when I try to restore my other apps(like iPhoto and my iTunes) I doesn't give that warp space effect in the background. It gives me the window layer effect but I just see the same mountain background on the desktop as the default Yosemite(unless thats how its suppose to look like that?) I can't restore using Time Machine because the little lines at the right are red (see screen shot) and it won't let me restore, and if i go back by using the arrows, if freezes. So,
I don't know how to install the old iTunes and iPhoto on my existing clean installed Yosemite from my Time Machine.
Can someone help me?

@ LarryHN Thank you ver much for you help I understand now that you just can't copy over the old library(got it)
I had the latest version of iPhoto before I cleaned installed.
The link you gave me was most informative and I want to thank you. But still problems arrive.
This came up and I don't know which one to pick

Clean install yosemite, couldn´t install aperture afterwards

clean install yosemite, couldn´t install aperture afterwards

Hi, 2teddy3.
Thank you for visiting Apple Support Communities.
I would need more information regarding any errors received and clarification on exactly what is happening to provide a better answer. However, here is a troubleshooting article that may help. .
Troubleshooting the Mac App Store
http://support.apple.com/kb/TS3624
Cheers,
Jason H

How to clean install Yosemite

How to clean install Yosemite on imac 10.9.5

Why?
Doing an erase and install of OS X is usually just a waste of time.
I recommend that you just upgrade and test it first.

HT201475 clean install yosemite

Hello, I am looking for instructions on how to clean install Yosemite as the reviews on the apple store all say there are problems simply downloading the upgrade. I have 10.8.5 and need to know how to reformat disk and do a clean install. I have a time machine.
Thanks,

I had no problems with the Upgrade. People who have problems with just upgrading usually have system modifications installed that don't work with Yosemite.
If you install anything with an installer, you need to check for updates prior to upgrading your OS. If there aren't any updates available, you need to be prepared to uninstall that system mod if you run into problems.
Depending on how much junk you install on your Mac, erasing and installing might just be the best solution over updating the system mods.
To erase and install, you will need to boot into Recovery and erase the hard drive using Disk Utility. Then, Quit DU and reinstall the OS.
That will install Mavericks (10.8.5).
Note that things like iPhoto, iMovie, etc. are not part of the OS. You will need to either re-download them from the App Store or install from the DVDs that came with your Mac.
When the Setup Assistant runs during first boot, choose to Migrate from your Time Machine backup. https://support.apple.com/en-us/HT204350

Can you clean install Yosemite?

My iMac is becoming a bit sluggish so I would like to take the opportunity for a clean install with Yosemite. Can I clean install Yosemite as you could with Mavericks by using ctrl -R, erasing the hard drive, reformatting and then using internet recovery?
Late 2012 iMac
Currently on latest OSX Mavericks - OS X 10.9.5 (13F34)

Rather than an unnecessary clean install answer some questions about the slowness to see if we can determine what is causing the problem. What exactly is slowing down, booting, a application or applications, which ones, etd.?
Download and run Etrecheck. Copy and paste the results into your reply. It's a diagnostic tool that was developed by one of the most respected users here in the ASC to help identify the more obvious culprits.

Clean install Yosemite stuck at terms and conditions on MacBook Pro

Hello,
I'm clean installing Yosemite on my MacBook Pro, which I downloaded from the app store and booted from the recovery partition
The install has gone fine, but it is now stuck at the 'Terms and Conditions' window - it looks like it's trying to load the terms and conditions, but all I have is the spinning disk and 'agree' and 'back' are greyed out
It's been that way for over twenty minutes
Anyone got any ideas? Is it safe to hard-reset and see if it clears it next time?
Thanks,
Wes

Try the enter key.

Im trying to download the new itunes so i can use my iphone 5 , however , the new itunes requires Mac OS X 10.6.8 or later and i cant seem to install that onto my imac even after searching for the new update (my imac is currently on 10.5.8.

.Im trying to download the new itunes so i can use my iphone 5 , however , the new itunes requires Mac OS X 10.6.8 or later and i cant seem to install that onto my imac even after searching for the new update (my imac is currently on 10.5.8.

You have already seen that you cannot load the new iTunes into your 10.5.8, so as Neil says, you need Snow Leopard (current cost £14). And you'll probably need to update the disc you buy via the combo update, though that is free.
As far as the new iTunes is concerned, there's been a certain amount of grumbling so you may want to study the forums before you update. The main problem has been with album artwork which does not transfer easily.

Since I have installed Lion onto my iMac it's impossible to to copy any video file from the mac to an external support (ups-stick, Timecapsule). What's happened? What can I do?

Since I have installed Lion onto my iMac it's impossible to to copy any video file from the mac to an external support (ups-stick, Timecapsule). What's happened? What can I do?

If you just did upgrade Lion, give it some time. I recall having similar problems and some articles mention heavy background work after install - such as re-indexing for Spotlight etc. I couldn't even copy from folder to folder or e.g. iphoto to folder on the same disk. Went away after a day or two though.
I do however still have a problem with AFP access to one of the lion machines - kills it's network adaptors rather quickly. No luck solving this so far :|

Can I un-install Yosemite from my iMac and re-install Mountain Lion?

Can I un-install Yosemite from my iMac and re-install Mountain Lion?

Sorry to barge in like this but is it because you found it to have it's own way of doing stuff without your control? As i was thinking of doing the same thing because i found Mountain Lion much more user friendly.I know you came for an answer just was searching and came accross your question.
Hope you find the answer. good luck.

I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

Boot from the original Install disc that came with the computer and then format the drive Mac OS Extended (Journaled) using the GUID partition. Then you can re-install OS X. If you no longer have the original media call AppleCare with the serial number of the machine (look on the bottom of the stand) and for a nominal fee they will ship you replacement media.
The chances are very good you will have fan problems if you used an off-the-shelf HD, beginning in 2009 Apple began using HD's from vendors that incorporated heat sensors into the HD. If you did not buy the same type of HD your computer will think the HD is overheating causing the fans to run at full speed.

Issues While Attempting to Clean Install Yosemite onto 2010 iMac 27"

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