downgrade from ML to Lion (new macbook pro)

Discussion in 'OS X Mountain Lion (10.8)' started by pedram, Aug 18, 2012.

  1. pedram macrumors newbie

    Joined:
    Aug 18, 2012
    #1
    hello guys

    i just purchased a new MacBook Pro i7 13-inch Mid 2012

    it came with lion (i didnt purchase it from mac store)

    it gave me about 7:30 hours on a single charge

    now after the ML upgrade i only get 5 hours if im lucky

    i know they will fix it soon ... but until then i wanna go back to lion

    how can i downgrade

    and from where i can download the lion installer


    thanks
     
  2. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #2
    you cant downgrade at best you would have to do a clean install of lion, and you wont be able to download lion anywhere legit anymore
     
  3. robgendreau macrumors 68040

    Joined:
    Jul 13, 2008
    #3
    Things like Mail and iPhoto and others do not happily adjust to a downgrade.

    But you could easily restore everything from the backup you made before you upgraded, right?
     
  4. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #4
    sadly i didnt make a backup

    ok lets say i got a copy of lion from a friend
    will it works on my device

    and if it did

    does the clean install delete all the partitions or just the partition which the system is on

    thanks a lot for the replies
     
  5. njean777 macrumors 6502

    Joined:
    Oct 17, 2009
    #5
    Yes he can, I believe if he starts internet recovery by pressing cmd + r while it boots he can still download Lion. At least my MBPr let me when I went back to Lion.
     
  6. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #6
    i just tried .

    gave me the option to re install ML which i already have

    how long usually does apple need to fix the battery issue on macbook pro?
    (im new to mac so bare with me plz)

    if weeks i think i can wait

    i get only 5.5 hours of light web surfing and few downloads
    (brightness on medium - keyboard backlit on the lowest setting)

    i used to get 7.5 hours to 8 hours on lion
     
  7. midtownhd macrumors member

    Joined:
    Jun 25, 2012
    #7
    I was able to downgrade back to Lion using the Internet Recovery. I own the current Air, and when I first installed ML I used a USB key after the download, instead of upgrading straight from the Mac App Store.

    I think the best bet would be to visit a local Apple Store and ask them for help.
    Regarding fixing it with updates, Apple just seeded the beta version of 10.8.1 recently. So that might fix it, but it would take a while to release it.

    ML was also degrading the battery in my Air, so hopefully you can downgrade to Lion as soon as possible.
     
  8. Badrottie Suspended

    Badrottie

    Joined:
    May 8, 2011
    Location:
    Los Angeles
  9. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #9
    will im always on the go so i need every hour of it

    and i live in kuwait

    we have apple resellers . no apple store

    they wont do ***** unless you give them bigolion dollars(im exaggerating )
     
  10. NutsNGum macrumors 68030

    NutsNGum

    Joined:
    Jul 30, 2010
    Location:
    Glasgow, Scotland
    #10
    No kidding!?
     
  11. pedram thread starter macrumors newbie

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    Aug 18, 2012
    #11
    im not :D
     
  12. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #12
    ask monte burns for his trillion dollar bill
     
  13. njean777 macrumors 6502

    Joined:
    Oct 17, 2009
    #13
    Try reformatting the whole drive. That includes the recovery partition and then reboot into Internet recovery. It may let you do it then.
     
  14. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #14
    ok i did what u said and erased the mac hd hdd
    it downloaded ml again

    actually now after the clean install i feel the battery is a lil better

    tell me if these numbers are ok
    because im new to mac and i dont know if these numbers are normal

    web browsing using chrome.. about 6 hours (no flash-wifi on-bluetooth off-ir off- disolay 50%- backlit on the lowest)

    typing in word document.. about 8 hours (the same as above)

    web browsing + half hour video skype + half hour youtube + 1.5 hours happy wheels :D + missing around.. 5 hours (the same as above) (from 100% to 10%)


    is this normal to mac ?
     
  15. njean777 macrumors 6502

    Joined:
    Oct 17, 2009
    #15
    Sounds about right to me, that is the time I got on my 2011 MBP when I had Lion on it. Flash really takes a toll on the battery.
     
  16. Comeagain? macrumors 68020

    Comeagain?

    Joined:
    Feb 17, 2011
    Location:
    Spokane, WA
    #16
    Wait a second...reformat the entire drive, including the recovery partition...then boot into the recovery partition? :eek: How does that work?
     
  17. mannyo1221 macrumors member

    Joined:
    Sep 21, 2011
    Location:
    Blandford, UK.
    #17
    Flash is a real battery killer, I can watch the battery indicator go down whilst on websites with flash or playing a flash game. This behaviour was the same with Lion and Mountain Lion.

    During normal use, ie. Word, Excel, iPhoto the battery life is a million times better.

    Am I right in saying that, with both the recovery and main HDD partitions deleted the newer macs will then access the internet for the full recovery process. including downloading the required recovery tools from scratch, and that older macs require the recovery partition since the EFI does not incorporate internet recovery.
     
  18. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #18
    You don't boot into a recovery partition. If the hdd is blank the mac will download its os from the mothership (apple)
     
  19. cosmicjoke macrumors 6502

    Joined:
    Oct 3, 2011
    Location:
    Portland, OR
    #19
    But did you erase the entire drive? The recovery partition is locked so you won't be able to do it from disk utility... What you need to do is delete the recovery partition from terminal... Here's a little guide I pulled up http://osxdaily.com/2011/06/30/deleting-the-mac-os-x-10-7-lion-recovery-hd-partition/

    If you did that, and then booted w/ Command-R it would boot from the internet recovery and d/l the version of OS X that it shipped with...

    Anyways, your battery life is pretty much par for course so I'd just live w/ it...
     
  20. sf-top macrumors newbie

    Joined:
    Apr 20, 2012
    #20
    Well, I have lion installer, downloaded from AppStore. The only problem is that its size is 3,5 Gb, and I don't have any space on web of more than 2,5 Gb.
    If you do - I could upload it for you.
     
  21. Icy1007 macrumors 6502a

    Icy1007

    Joined:
    Feb 26, 2011
    Location:
    Cleveland, OH
    #21
    10.8.1 supposedly fixes the battery issues for a lot of people.
     
  22. flick-geek macrumors newbie

    Joined:
    Aug 24, 2012
    #22
    Lion partition on Mountain Lion Possible?

    Hi There,

    I buying a new MBP 15" soon. It will obviously come with Mountain Lion installed. Is it possible to partition the HD and install Lion on the partition?

    I know you can't downgrade from ML if that OS came with the Mac, but can I at least have Lion on a separate partition?

    Thoughts would help.

    Dave
     
  23. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #23
    thank you very much
    i have the lion installer but did no good for me
    thanks again for your reply

    lets hope so
     
  24. anonymous4a macrumors 6502

    Joined:
    Aug 6, 2012
    #24
    hey pedram, did you ever downgrade to Lion ? I'm also trying to do the same thing, was wondering if you've had any progress and what steps you did
     
  25. pedram thread starter macrumors newbie

    Joined:
    Aug 18, 2012
    #25
    i tried everything i read but no success

    even the internet recovery installed ML for me

    now after 10.8.1 update im actually happy with the results
    (not as good as lion but still close)

    the only thing i haven't tried it to format the whole hdd and use internet recovery to install the os which the mac came with when u bought it
    (i thinks this will work)
     

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