Is Bootable Backup of Snow Leopard Useless After Mountain Lion Install?.

An Apple tech support rep told me that after installing Mountain Lion, users will be prompted to update their Mac's firmware. The new firmware is supposed to make Mountain Lion run smoothly. Once you update the firmware, "there's no going back," according to that rep. You will not be able to boot back into Snow Leopard from another drive. I am not sure whether Lion was included in his comments, since I am running Snow Leopard and we were discussing my specific situation.
Today, I read that there is a firmware update for the 2011 MacBook Air to enable a feature called, PowerNap. I did not see any information about another firmware update.
Has anyone else heard this warning re: not being able to boot back into Snow Leoaprd (or Lion) after installing Mountain Lion?

The recent firmware updates are not for your model. They are for laptops that can support Power Nap. The Mountain Lion upgrade does not upgrade your firmware. Furthermore, if you need to run Snow Leopard then there's no reason for you to upgrade to Mountain Lion.

Similar Messages

  • Complications migrating from Snow Leopard Server to Mountain Lion Server.

    I'm migrating from Snow Leopard Server to Mountain Lion Server. The article "OS X Server: Upgrade and migration" (http://support.apple.com/kb/HT5381) says
    "Make sure that any DNS or DHCP servers on which your server depends remain running during the upgrade"
    This advice is reinforced by the details of the article "OS X Server: Steps to take before upgrading or migrating the Open Directory database" (http://support.apple.com/kb/HT5300).
    As the server I'm migrating from provides these services it will need to be running during the migration process. This would seem to limit my options to doing the migration from a Time Machine backup (or, making a seperate clone of the server's drive and connecting it externally to the new box)
    My main concern is the seemingly inevitable clash that is going to occur on the network as the new server takes on the roles of the old one - while it is still running.
    What are my options here ?
    This is my second attempt as on my first try I did the migration from the TM backup with the network down - and none of my local network users or their home directories were migrated, although the settings for the mount points were, but there were no actual directories where they pointed to!
    Clear directions on how to procede would be VERY MUCH appreciated
    Thank you.

    Moving from Snow Leopard to Mountain Lion means first installing the client (non-Server) version of Mountain Lion and then install Server.app this means that for at least part of the process you will not be running DNS, DHCP or Open Directory.
    If you are going to end up using the same DNS name and IP address after the change then an approach you could follow would be as follows.
    Destroy any Open Directory replicas
    Archive your Open Directory Master (to make a backup)
    Note down your DNS records in case they get messed up
    Export via Workgroup Manager your users, and groups (you might not need this but better safe than sorry), make sure you do not include the diradmin account
    Keep a full back of the server (you should always have backups)
    Note down your DHCP server settings in case they get messed up
    Note down any other service settings
    Install Mountain Lion
    Install Server.app
    Install Workgroup Manager (extra free download)
    Run Server.app
    Make sure settings for services are as much as possible the same as before
    If your lucky that may be all you need to do, otherwise...
    Restore Open Directory archive, if your lucky that will be all you need to do, otherwise...
    Make new Open Directory Master
    Run Workgroup Manager
    Import users and groups you previously exported
    You will then have to set passwords for each user as these are not preserved via Workgroup Manager export
    When I did this, I was also being forced to change all my IP addresses so I had no choice but to use Workgroup Manager to export and import accounts.

  • Problem  High running Temperature  Specification iMac 27 inch  Mac OS X  Includes Software Snow Leopard upgraded to Mountain Lion  OS X 10.8.03 (1278) 251 GB Flash Drive 2 TB  Sata disk Processor 3.4 Ghz Intel Core I7 Memory 16 GB 1333 MHz DDR3  Graphics

    Problem
    High running Temperature
    Specification
    iMac 27 inch
    Mac OS X  Includes Software Snow Leopard upgraded to Mountain Lion  OS X 10.8.03 (1278)
    251 GB Flash Drive
    2 TB  Sata disk
    Processor 3.4 Ghz Intel Core I7
    Memory 16 GB 1333 MHz DDR3
    Graphics AMD Radeon HD 6970 2048 MB
    Video: Software Final Cut Pro X  10.0.8
    I use the imac mainly for editing Video which when doing so it has reached temperatures of near to 60° C which causes the program to become unstable and needs to be cooled down to operate correctly.
    An Apple technician (by phone) advised me to download an smcfancontrol.  This allows each individual fan to increase speed and also advises the current temperature at °C.  The smcfancontrol has been downloaded but this has not resolved the problem.  By increasing the speed of the fan more heat is generated and creates additional noise. 
    I have since taken the iMac to an Apple Store for examination as suggested by APPLECARE when the fans were found to be working correctly.  An Apple Store technician carried out a test, but not whilst working under the pressure of FINAL CUT PRO when the iMac generates a high temperature.
    The Temperature Specification  for this model is
    Operating Temperature 20 °c to 35°C
    Storage Temp.47°c
    Clearly the temperature my iMac  is operating at is excessive and could cause the computer to break down prematurely.  Has anyone experienced this problem.
    Frank Howell

    When was the last time you cleaned/vacuumed out all of your iMac's vents, slots and ports.
    You need to do this with the iMac powered down, disconnected from power and everything disconnected.
    Lay your iMac, screen down, on a soft surface, like a heavy towel. Use a small electronics vac, or portable or full size vac with hose and a crevice tool attachment and carefully and slowly vacuum every vent, slot and port on your iMac.
    Then reconnect everything up, power up and download and install iStat Pro. Start working, then report the temps of your iMac after this has been done.
    When using SMCFan Control, it is important not to run the fans at too high an RPM. This doesn't generate heat on its own, but will suck in more dust, lint and dirt into your iMac, and that will be the cause of additonal increases in heat.
    I run my fans in the range of 1400-1600 RPMs. You can go as high as 1800 RPMs but it is important to keep the RPM range below either 1800 or below 2000 RPMs.
    I, also, run a very small desktop fan pointed toward the upper back of my iMac to keep temps down even further.

  • HT1758 Are all Intel 24" iMacs w/Snow Leopard OK for Mountain Lion?  My serial number doesn't match any of the one in the iMac ID list; they all start with "MA" or "MB", mine starts with a "W." Purchased direct from Apple August 2007.

    Are all Intel 24" iMacs w/Snow Leopard OK for Mountain Lion?  My serial number doesn't match any of the one in the iMac ID list; they all start with "MA" or "MB" and mine starts with a "W." Purchased direct from Apple August 2007.

    Macs that can be upgraded to OS X Mountain Lion
    iMac (Mid 2007 or newer)
    MacBook (Late 2008 Aluminum, or Early 2009 or newer)
    MacBook Pro (Mid/Late 2007 or newer)
    MacBook Air (Late 2008 or newer)
    Mac mini (Early 2009 or newer)
    Mac Pro (Early 2008 or newer)
    Xserve (Early 2009)
    Open System Profiler and report what you find displayed for the Model Identifier.

  • Cannot Upgrade OSX Snow Leopard To OSX Mountain Lion

    Cannot Upgrade OSX Snow Leopard To OSX Mountain Lion I Have Tried twice but it just doesent upgrade what do i do please reply fast

    Your Mac must be one of the following models:
    iMac (Mid 2007 or newer)
    MacBook (Late 2008 Aluminum, or Early 2009 or newer)
    MacBook Pro (Mid/Late 2007 or newer)
    MacBook Air (Late 2008 or newer)
    Mac mini (Early 2009 or newer)
    Mac Pro (Early 2008 or newer)
    Xserve (Early 2009)
    If you are running Lion, you can find out if your current Mac qualifies by clicking the Apple icon at the top left of your screen, choosing About This Mac, then clicking More Info.
    http://www.apple.com/osx/how-to-upgrade/

  • Problem with mail after mountain lion install

    Mail has become sluggish to locking up after Mountain Lion install.  I get the color wheel each time I start typing in an address to send an email.  I also get the wheel when i am typing an address or name in any web page in Safari.  Is this a Mail Problem or an Address Book problem?

    It sounds like your computer needs to be cleaned up. Have your repaired permissions or cleared caches since you got the computer. Often times when upgrading operating systems permissions get screwed up and it causes issues.  Go to disk utility in your "other" folder in applications.  Select disk utility, then on the left hand side choose Mac HD then click REPAIR permissions in the center section. Wait for it to finish, restart your computer, then test.

  • After mountain lion install mac very slow

    After Mountain Lion install, my MacBookPro mid-2009 version is extremely slow. What could be causing it to slow down ?

    There are a bunch of threads about this. Use the search function and see what others are finding out.

  • After Mountain Lion install, my MacBook Pro's fan is running non-stop.

    After Mountain Lion install, my MacBook Pro's fan is running non-stop and you can hear the insides working extra hard. Is this normal? It's very loud and annoying?

    http://support.apple.com/kb/HT3964?viewlocale=en_US

  • Why can't i access the app store after Mountain Lion install?

    Why can't i access the app store after Mountain Lion install?

    Hi There,
    What happens when you try to access it?   You've not given a lot of information for people to help you.

  • I Restored My Imac, But I Can't Install Moutain Lion As It Says I Haven't Purchased Lion. This Is Because I Went From Snow Leopard Straight To Mountain Lion. PLEASE HELP

    So my mac is pretty much useless becuase i can't install mountain lion after a restore of my mac.
    I have an imac late 2008 which i bought second hand. It only had Leopard OS X. So I bought the Snow Leopard OS X discs and installed them. I then bought Mounain Lion Straight from the app store and downloaded that.
    However I recently decided to restore it for extra space. So i restored it fine and then attempted to reinstall Mountain Lion. Then a message popped up saying that 'This Apple ID has not purchased Lion' meaning that i can't now install Mountain Lion.
    I then inserted the Snow Leopard disc and then it would not give me the option to install it on my hard drive and there was a little yellow caution sign on the picture of the hard drive.
    I am stumped for ideas now and REALLY NEED SOME HELP
    Thanks,
    Fin

    If you installed Leopard that is why you can't install Mt Lion. The system Must be running Snow Leopard 10.6.8 to upgrade to Lion or Mt Lion.
    If you only erased the Macintosh HD partition then you left the Mt Lion Recovery HD partition in tact on that system. At startup hold down the Command+r keys to boot to the Recovery HD Partition. From there erase the Macintosh HD partition and then select Reinstall Mac OS X. It should then download Mt Lion and ask you for the Apple ID that was used to purchase Mt Lion.
    The Reason Snow Leopard might not be installing is because of the Recovery HD partition. To get rid of that you must First Re-Partition the drive As One Partition. Then install Leopard then SL (Or Snow Leopard from the start) and then update it to 10.6.8. Once that is done you should be able to log on to the Mac App Store and Re-Download Mt Lion.

  • Trackpad issues after mountain lion install

    Since my Mountain Lion install, the trackpad on my 15" MBP will track, but won't select anything.  Hot corners aren't working, the dock won't appear, etc.  Anyone have any suggestions?

    Got similar issues, no notifications and no switching between full screen apps (4fingerswipe). Some swipe features work, no secondary click in bottsom corners...Trackpad operational under Mountain Lion a total nuisance compared to Snow Leopard...PLease Apple, show some respect again to your faithfull customers and show some response!

  • After Mountain Lion install, my iMac powers off instead of just going to sleep. Help? Thanks.

    After I installed Mountain Lion on my 2009 iMac, it will power off after I don't use it a while. It used to just go to sleep, I'd shake the mouse, and it would come back up. Now it powers off and I have to power it back up every time. 
    My Macbook has NOT had this problem since Mountain Lion install. It is fine.

    Do these resets to clear errant commands:
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    The 5 second timing is important to a successful reset.
    PRAM RESET
    Zap the PRAM
    Shut down the computer.
    Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    Turn on the computer.
    Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
    Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    Release the keys.

  • How do I restore my operating system from Snow Leopard back to Mountain Lion on line after erasing my hard drive?

    I had to erase my hard drive.  I loaded Snow Leopard with the disk I got with my computer, but I purchased Mountain Lion several months ago and don't have support any longer.  How do I get back to the Mountain Lion operating system, on line?

    Upgrading to Snow Leopard
    You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
    After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mavericks if your computer meets the requirements.
         Snow Leopard General Requirements
           1. Mac computer with an Intel processor
           2. 1GB of memory
           3. 5GB of available disk space
           4. DVD drive for installation
           5. Some features require a compatible Internet service provider;
               fees may apply.
           6. Some features require Apple’s iCloud services; fees and
               terms apply.
    You must perform the last step - updating to 10.6.8. Until then you have no access to the App Store. When you can sign into the App Store using the same Apple ID with which your purchased Mountain Lion, click on the Purchases icon in the toolbar. Locate your Mountain Lion purchase line then click on the Install button on the right to re-download.

  • Error configuring services from Snow Leopard Server to Mountain Lion Server

    I am trying to upgrade a Snow Leopard Server Mac Mini to Mountain Lion Server.
    We have two Mac Mini servers at our office (production and backup) so I migrated the everything from our production server to the backup using the migration assistant when setting up the backup computer.
    I now have the backup at home trying to upgrade it to Mountain Lion Server.  I have downloaded and installed Mountain Lion as well as the Server App version 2.2.  I basically followed the simple directions found in the Apple documentation.
    I started the server app and it got to the part where it said "Upgrading services".  After running for a few minutes, I get a window that states "An error occurred while configuring your server."  It also sayd "The following actions failed or were not attempted:" with a red dot next to "Upgrading services".  The other three items:  "Authenticating to local directory", "Reading directory configuration" and "Authenticating to local directory services" have gray dots so I'm sure they were not even attempted.
    Our Snow Leopard server is setup for SMB file sharing, LDAP services, FTP, Web, DNS, DHCP.
    Can someone point me to where I can figure out what exactly is failing?  Are there specific log files I need to look into?
    Thanks

    Have EXACTLY the same issue - also tried reinstalling mountain lion server fresh and still had the same problem...

  • Time Machine backup history present but inaccessible after Mountain Lion clean install

    Hi all,
    A few days ago, I took the Mountain Lion plunge and after performing all the preliminary data copying to external hard drives as well as on last Time Machine backup to my dedicated Time Machine external hard drive, I booted from my ML recovery USB thumb drive, reformatted the internal HD, and proceeded to perform a clean install of OS X 10.8.
    The ML install and initial setup completed without a hitch, and I had no difficulty in reconnecting to my existing Time Machine EHD and performing an initial backup of the freshly upgraded Mountain Lion system. It took several minutes in the "preparing backup" phase; but once it got through that, it backed up my entire system (which was basically nothing more than the new OS and iLife at this point) within an hour or so.  Time Machine has since worked reliably in performing the automatic backups every hour.
    But here's the problem:  My backup history went back all the way to March 2011 before the ML upgrade, and it still (sorta kinda) does now.  However, although I can see all of the backup history tick marks when I enter TM, the ONLY SELECTABLE backups are from the point where ML was installed and onward.  The previous Lion and Snow Leopard backups are visible; just not selectable.  I also verified that the physical backup folders are still present on my TM EHD dating all the way back to last March.  I ran a verify and repair operation on the TM volume, and it came back clean.  I have disconnected and reconnected the TM EHD to TM and of course rebooted, but no joy.  TM did not force me to "start over" with a new backup as some posters have complained of. And it seems to be working fine otherwise.
    Has anyone else had a similar experience after upgrading to ML?  Any thoughts on how I might reconnect to my TM backup history?
    Thanks in advance for your thoughts.

    How did you put your data back after the erase?
    I didn't, or rather I haven't yet.  Basically, all I have done so far is:
    Reformat Lion HD and install ML clean from USB thumb drive
    Run through initial virgin boot setup, e.g. enter my Apple ID and desired user account info
    Change a few preferences (the "use right side of mouse for secondary click" setting first and foremost!)
    Configured Time Machine to use pre-existing Time Machine Backups EHD and let it do initial backup (which it simply added on to the existing backup history as I had hoped)
    Drag-and-drop copied my saved iTunes library (~50 GB) from my ext. FW drive to my new Home Music folder and confirmed that iTunes was working and able to sync with my iPhone and iPad
    Installed the iLife suite from my Bundled Applications DVD and then updated those apps via the App Store
    Obviously the iTunes folder is an exception to "I haven't yet", but basically, the Lion's share (pun intended) of my previous data has not yet been copied back from the temporary storage on the EHD.
    The reason you can't see the backups of the old home folder from the new one is simply that they have different names.
    Yes, I know that now.  Everything was fine all along.  I just didn't realize that TM [quite sensibly] grays out any backup history finder windows and right-hand-side tick marks that contain no backup of the folder currently in focus.  Since the folder I had in focus was one that didn't exist before I installed Mountain Lion, there was nothing to access except for the most recent post-upgrade backups.
    Thanks much for your help.

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