Problems reverting to Snow Leopard.

Hi guys. I have a 2010 iMac. I want to sell it and know that I must reinstall the OSX the computer came with. I could not find my install discs and therefore contacted Apple, who have sent me some new ones.
I have erased my hard drive and ensured that it was partitioned as OSX journaled with a GUID partion. I have rebooted using the OSX install disc, but I am now told that 'Mac OSX cannot be installed on this computer'. Any suggestions as to where I am going wrong?

Then what you have is a logical storage group. You will find that listed just under the drive listing area.
Select the top most entry and then the partition tab and then in the partition layout area select one partition. I'm not sure if that will work but give it a shot. If it doesn't do a google search for "Remove logical storage group mac os x" and see if there are instructions to first get the drive back to normal where the drive manufacturers name/model number is listed as the top entry.
It should look like these.

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Im having a problem reverting to snow leopard through the usual tried and true methods.

i have a mid 2010 imac that originally came with osx 10.6. since i upgraded to mountain lion two years ago, ive been unable to use pro tools 9. i have about a terabyte of sessions and recordings that i need to reopen so i want to make a partition and install snow leopard there. i made the partition and flashed a legit copy of snow leopard 10.6 to a sandisk 16gb usb drive. the bootable drive shows up fine in my current install of yosemite, as does it show up when i restart and hold option to bring up the partitions and other media connected to the usb hub and superdrive. when i click on the bootable drive it goes to the grey apple logo and hangs indefinitely. thinking it may have been the usb drive itself i got a legit copy of 10.6 on disc and tried it in my superdrive. my superdrive however, like many 5 year old superdrives, is a bit fickle and plays certains discs and spits others out immediately, the snow leopard disc being the latter. i got an external disc drive to run the disc and it also popped up in yosemite and at the reboot after holding the option key down, just like the bootable usb drive. it too hangs on the grey apple logo indefinitely. my question is this: do you think that im having with my usb controller? every method ive tried so far is going through the usb ports on the rear of the imac. since i cant boot using the internal drive and i dont have another mac to use the Target Disk mode method, this is the only thing i can come up with. ive literally been trying to reinstall snow leopard since december 2013 without any luck. ANY help would be appreciated. thanks in advance!

Can you boot normally?
CD/DVD Loading Problems
CD/DVD Drive - Troubleshooting See troubleshooting section.
CD/DVD Drive - Troubleshooting (2)

Why I reverted to Snow Leopard from Lion....

Mac Mini (Late 2009)
2GHz Processor
2G RAM
320GB Hard Drive
I've loved this computer from the moment I got it....used...on eBay...Leopard disk included, but wiped clean by seller. My second Apple purchase after the iPhone 4. I loved the way that Apple products did away with the annoying "thinking time" so familiar to PC users....they just worked (bleugh!). They didn't get sick, they didn't slow down, they made your whole computing experience less computational and more creative.
Snow Leopard, when it came out, made my second hand Mac even better, took up less space and just seemed to run extremely smoothly. As a musician, I record into CPU-intensive programs like Ableton, and yet, my ickle 2 Gig box handled the loads superbly.
Lion, on the other hand has turned out to be a major disappointment....
After the initial 'excitement' of side-swiping webpages had worn off, I began to notice that the computer was very slow, with that beachball appearing much too frequently for my tastes...I got several spinning hourglass flashbacks! I thought I had left those days behind me....Ableton started using massive amounts of CPU and doubling it's RAM consumption, to the point where the mouse would freeze, drop-down menus would appear blank, basically the whole system freezing until I closed the offending program...in this case Ableton. I was seriosuly considering upgrading my RAM, but my gut instinct was that Lion was causing it. I checked the forums, and found a few incidents of people with similar problems, saying Lion was the culprit. They were being arrogantly dismissed as fools for daring to criticise anything Apple related. I'm no expert, but I know when my computer is not working the way it should. So I searched YouTube for the method of reverting to Snow Leopard...sat up late last night completing it...but it was well worth it. I'm back on 10.6.8
I now love my Mac Mini again.....all my programs run faster, RAM and CPU usage is down, no more spinning hourglasses, I mean BEACHBALLS
My verdict:
Snow Leopard is a fantastic operating system.
Lion is not.
I don't know or care for the politics of why it is not, but a few gimmicky tricks and full-screen apps do not even begin to make up for the frustration of using a slow, buggy operating system, that developers say was rushed out and no't tested properly...I believe them!
I have heard a few people refer to possible power management problems with Lion....sounds plausible
Lion is Apple's Vista.
Cheers for reading my first post
Paul

Welcome to the crowd.
I reverted my MBP 3,1 back to Snow and the Lion black death and video artifacts are gone.
Yes, Lion certainly needs to go back into the oven for more cooking, unfortunately they release it and inflict millions with it and don't have a easy, user friendly method to revert.
Not only that they make UI changes that people just have to blindly accept, with no option to turn them off.
Things needs to change, even Windows has System Restore and some measure to revert some features back to what they were and let change be accepted gradually.
Storage drives are fat, some with as much as 750GB, there isn't a reason in the world not to provide two OS''s on one drive to ease the transition between the two. Let those who can afford to beta test with arrows in their backs do so.
Let the rest of us who just want our computers to work left alone, we don't want new features if it they don't work reliably yet.
The way it is now, when a new OS is about to be released, one has to run out and buy new hardware prematurely because the whole next year will be nothing but misery.
Really nice way to treat newcomers to the Mac experience.
Change and improvement is welcome, but it has to be gradual and reliable. Not sudden and drastic.

Before Mac OS X lion install I had over 50% free hard drive space on new MBP, but now my hard drive is full without me doing anything! How do I fix this??? Or should I just revert to Snow Leopard???

Before Mac OS X lion install I had over 50% free hard drive space on new MBP, but now my hard drive is full without me doing anything! How do I fix this??? Or should I just revert to Snow Leopard???

Sounds like the Time Machine Local Backup. Try turning Time Machine Off in System Preferences to verify.
See: OS X Lion: About Time Machine's "local snapshots" on portable Macs
But, your real problem is
I forgot to mention that I tried to use Disk Utility to Verify Disk, but it cannot. I get red errors that say the MacHD is corrupt and needs to be repaired. It says that in order to do this I need to use the Disk Utility on the install disk, but Lion doesn't have one!
Boot into Lion's Recovery (Hold ⌘R on Boot), select Disk Utility and then select Macintosh HD and click [Repair Disk]
Tony

How can I revert to Snow Leopard from Mountain Lion on a 2013 iMac?

I have a brand new 27" 2.9Ghz iMac, bought a few days ago, equipped with Mountain Lion. I'm using it for recording, and at the time, my recording software and hardware are incompatible. On Snow Leopard, however, it all runs flawlessly. I know I can't simply revert to Snow Leopard, as there is some sort of firmware that blocks these types of downgrades. Can I partition the internal hardrive and install Snow Leopard and boot from that partition? I have no real use for Mt. Lion for the time being, so I wouldn't need to boot them both simultaneously or even go back and forth. I just want Snow Leopard...any help would be much appreciated. Thanks

Welcome to the Apple Support Communities
You have different problems with a Late 2012 iMac and Snow Leopard:
1. The firmware doesn't allow you to run it.
2. Snow Leopard isn't compatible because it hasn't got the drivers for the hardware of the iMac. Furthermore, you can only run OS X 10.8.1, 10.8.2 or 10.8.3 on a Late 2012 iMac at the moment, because older versions haven't got the drivers it needs.
3. It's illegal.
As you can see, you can't run Snow Leopard natively. If this is a requirement, I suggest you to return your iMac and search a Mid 2011 iMac with Snow Leopard (there are some Mid 2011 iMacs that came with Snow Leopard, although most of them came with OS X Lion). If you don't find anything, buy a Mid 2010 iMac.
Another possibility is to buy Snow Leopard Server and install it on a virtual machine, but I doubt it's legal

How to revert to Snow Leopard from time machine on Yosemite Device.

Hello everybody,
Essentially I need to revert back to OS Snow leopard on my new macbook that has Yosemite installed (bought secondhand) as a few of my DJ programs (Rekordbox) are not co-operating with the new OS. I have the back up on a hard drive made with Time Machine, is there any way I can do this?
My old Macbook pro is still working, its just the backlight has gone out, so I have to use a torch on the back to see what I'm doing. Everything still functions correctly on my old device, and I can use the carbon clone copy if need be. Really just need my old laptop's os/files on this new device with Yosemite on it.
Thanks in advance.

Do a backup, preferably 2 seperate ones.
Revert to a Previous OS X
Revert to Snow Leopard
If you do revert, I'd use Setup Assistant to restore your data. This process takes a while, so do it when you won't need the computer for several hours, based on my experience.

Problem in update snow leopard 10.6. 2 to version 10.6.4 on Imac 27 "I7

Problem in update snow leopard 10.6. 2 to version 10.6.4 on Imac
27 "I7
When do the automatic update of version 10.6.2. to version
10.6.4 when it comes to "Apple" and the hourglass to "think" that moment appears on the screen too fast some risks.
Does anyone know how to solve this? I happen to other customers?

Hi slbruilima
The best way to bring the system up to date from 10.6.2 is to download and install the 10.6.4 Combo Update from the following link. > http://support.apple.com/kb/DL1048
Dennis

How do I uninstall OS Lion and revert to Snow Leopard

Hi all, I need to use Microsoft Office Mac Version in my work. And OS X Lion don't support that. I am desparate to know how do I unistall the OS X Lion, and revert to Snow Leopard so that I can resume working on my MacBook Pro. Please help.....

MS Office for mac 2004 is indeed incompatible I believe but 2008 onwards isn't. You should consider upgrading your MS Office to be compatible. Apple is not responsible for making 3rd party software compatible with its OS, its the 3rd party developers who updates their softwares and drivers.
You can certainly revert back to Lion BUT it depends what type of machine do you have?Did you purchase Lion as an upgrade?is your machine Lion preinstalled?

I bought a macbook pro on november 2011 wich had Lion OS installed on it. Playback plug-in in Mainstage 2.1.3 does not play files from the beginning (it leaves out like 50 mSecs or so). Is there a way to revert to Snow Leopard OS?

I bought a macbook pro on november 2011 wich had Lion OS installed on it. Playback plug-in in Mainstage 2.1.3 does not play files from the beginning (it leaves out like 50 mSecs or so). Is there a way to revert to Snow Leopard OS?

BrettGoudy wrote:
...Is there any way I can install a partition that runs snow leopard on my early 2011 MB pro with what I have (new SSD, New RAM, Current version Lion running, no external drive, lack of original snow leopard disks [I lost them ] and the general 10.6.3 snow leopard boot disks)...
As the last post suggests, call Apple and order a replacement original disc for about $17. They will ask you the model and serial numbers.
Your retail version of Snow Leopard OS 10.6.3 will not work on that Mac as it requires a minimum of OS X 10.6.7 to boot and operate.
Another alternative is to again borrow another Mac to install your retail Snow Leopard into an external HD or partition, upgrade it to 10.6.8 and then clone it back to a partition on your MBP.

I have problem installing my snow leopard

I have problem installing my snow leopard. it says that installing will continue after restart of my computer. But after it has restared, no installation happened. also it keeps ejecting the cd. What am i going to do? I've tried so many times.

as of now, my OS is 10.5.8. I wanted to upgarde it to 10.6 so that i can install the latest itunes.
But, i cant install my snow leopard. it keeps happening and happening again.
My laptop keeps ejecting the dvd. Sometimes i was able to open the dvd and click install. But after I reached "46 minutes remaining", the window will show that the installation will continue after restarting. and when its restarted, the installation did not continue. and im still with 10.5.8.
What should i do?

Getting problem while installing Snow Leopard (10.6.3) on my Mac Mini. The following issue is showing : "mac os x snow leopard cannot be installed on this computer" And My Mac Configuration details: Model Name: Mac Mini Model Identifier: Macmini2,1

Getting problem while installing Snow Leopard (10.6.3) on my Mac Mini. The following issue is showing :
"mac os x snow leopard cannot be installed on this computer"
And My Mac Configuration details: Model Name: Mac Mini Model Identifier: Macmini2,1
Intel Core 2 Duo
1.83Ghz
l2Cache: 2mb
Memory : 2GB
Bus Speed: 667MHz
Please help me......
Thanks

Actually i have Mac OS X 10.5.4 DVD, I need to upgrade it to Snow Loepard(OS X 10.6)...
Please suggest me what to do???
Thanks

How do I revert to Snow Leopard from Mountain Lion? I do not have the setup disk that came with my MacBook but I do have the Snow Leopard software.

I upgraded to Mountain Lion and very much regret this move. I cannot use Parallels or Bootcamp for Windows XP which I need for some of my 'older' accessories. How do I revert from Mountain Lion back to Snow Leopard? I have the Snow Leopard software but I do not have the original setup software disk that came with the MacBook (leant to a friend and never seen again).

If you do revert to Snow Leopard, be aware of this "feature" I used with my 2009 MacBook Pro:
When it had the original OS (Leopard, I believe) I set up Bootcamp with Windows XP. I also installed Parallels and use the Bootcamp partition for Windows XP within Parallels.
I then upgraded to Snow Leopard and all was fine.
I then upgraded to Lion and still my Bootcamp partition works for Windows XP and also for Parallels.
I have not upgraded to Mountain Lion so I cannot speak to whether or not the Bootcamp paritition of Windows XP will continue to work. If you do and it works, LET US KNOW!

How does one un-install Lion and revert to Snow Leopard?

Anyone know how to un-install Lion and revert to Snow Leopard?

Downgrade Lion to Snow Leopard
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard. I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.

Will i have problem upgrading from Snow Leopard 10.6.8 to Maverick ?

will i have problem upgrading from Snow Leopard 10.6.8 to Maverick ?

Impossible to know. But I would make a backup before doing so, just in case. I would also do the following:
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
If you wish to save yourself a lot time should you need to reinstall Mavericks at some point in the future then see the following:
Make Your Own Mavericks, Mountain/Lion Installer
After downloading the installer you must first save the Install Mac OS X application. After the installer downloads DO NOT click on the Install button. Go to your Applications folder and make a copy of the installer. Move the copy into your Downloads folder. Now you can click on the Install button. You must do this because the installer deletes itself automatically when it finishes installing.
   2. Get a USB flash drive that is at least 8 GBs. Prep this flash drive as follows:
Open Disk Utility in your Utilities folder.
After DU loads select your flash drive (this is the entry with the mfgr.'s ID and size) from the leftside list. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
Select the volume you just created (this is the sub-entry under the drive entry) from the left side list.
Click on the Erase tab in the DU main window.
Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
Click on the Erase button. The format process can take up to an hour depending upon the flash drive size.
Make your own Mavericks flash drive installer using the Mavericks tool:
You can also create a Mavericks flash drive installer via the Terminal. Mavericks has its own built-in installer maker you use via the Terminal:
You will need a freshly partitioned and formatted USB flash drive with at least 8GBs. Leave the name of the flash drive at the system default, "Untitled." Do not change this name. Open the Terminal in the Utilities folder. Copy this entire command line after the prompt in the Terminal's window:
     sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume
     /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction
Press RETURN. Enter your admin password when prompted. It will not be echoed to the screen so be careful to enter it correctly. Press RETURN, again.
Wait for the process to complete which will take quite some time. When completed it would be wise to test the installer by checking that it boots the computer and is then ready for installation.

My MacBook (10.5.8) is very slow and has significant problems loading will Snow Leopard (10.6.3) help or make my computer slower?

My MacBook (10.5.8) is very slow and has significant problems loading will Snow Leopard (10.6.3) help or make my computer slower?
Also why does my Macbook make so much noise (The noise concerns me because it is so loud it sounds like the laptop will break down or something at any point)?

It depends on your Macbook model how to open the bottom case.
Anyway you need to open up the buttom case or keyboard panel to access the CPU fan like following.
https://www.youtube.com/watch?v=3hHA4DDEvZA
http://www.ifixit.com/Guide/MacBook+Core+2+Duo+Lower+Case+Replacement/537
If you think you can't do that by yourself, you'd better bring it to Apple Store Genius Bar or Authorized Servce Shop to tell them about the problem.

Problems reverting to Snow Leopard.

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