Boot up Leopard in 64-bit?

Ok, I'm hearing so much as to how to boot up the next version of Mac OS X in 64-bit. Is there anyway to boot up Leopard in 64-bit mode?

Hi,
"No"
Is the simplest and shortest answer I can offer you. If you have an intel Mac, you will be running.... mostly.... in 64 bit mode any way.
Regards.
Ian.

Similar Messages

  • Unable to boot snow leopard on 32 bit mode

    I'm using Macbook pro with Mac Os X 10.6.2. And it has no problem to boot under 64 bit mode, but fails under the 32 bit mode. Is there any suggestion? Thanks.

    Since most 3rd party drivers are not ready for a 64bit kernel, it is possible that when booting the 64bit kernel, a 3rd party driver, that is not compatible with 32 bit Snow Leopard, is not being loaded.

  • Mac Pro Classic, Snow Leopard, and 64 bit kernel

    Hello, and thanks in advance for your thoughts and your help. A question was brought up on the macrumors forums about the shortcomings of the 2006 mac pro. Basically someone said that he would not get a used 2006 mac pro because "it can't boot into Leopard in 64-bit." I asked him what he meant and he said that he didn't think it was "true" 64 bit because in his system info it says "64 bit kernel and extensions - no". I poked around a little bit and found a good article:
    http://www.appleinsider.com/articles/08/10/28/roadto_mac_os_x_snow_leopard_64_bit_to_thekernel.html
    detailing that Leopard runs on a 32 bit kernel, mainly because every extension must be 64 bit in order to run on a 64 bit kernel, and that Leopard can run 64 bit applications even though it runs on a 32 bit kernel. The article states that Snow Leopard will be the first operating system on a 64 bit kernel.
    Now, my question. Since my Mac Pro runs on 32 bit EFI instead of the new EFI 64, will I be able to have a similar 64 bit Snow Leopard experience? Will my EFI on my antique mac pro really limit the 64 bit Snow Leopard experience? Will my aluminum macbook be able to "do" more with snow leopard than my mac pro? and lastly, I am currently running the Radeon 4870 in my mac pro, since the guys at ATI snuck the 32 bit EFI onto the card as well as the 64 bit EFI, somehow. I wonder what's going to happen with all this when Snow Leopard drops.

    I think part of the confusion is that the original Mac Pro does not enable 64 bit under Boot Camp. If you look at:
    http://www.everymac.com/systems/apple/mac_pro/stats/mac-pro-quad-2.66-specs.html
    The original Mac Pro is 64 bit in every way. Regular Leopard is not in the Finder. So there is still a chance you may get 64 bit processing on Snow Leopard even with the original Mac Pro.
    From the above link:
    Each of two Xeon 5150 "Woodcrest" Dual-Core processors have two independent processor "cores" with 4 MB of level 2 cache per processor. It also features a 128-bit SSE vector engine, 64-bit data paths and registers. Also offered, via custom configuration, were two 2 GHz Dual Core Xeon 5130 processors for US$300 less, two 3 GHz Dual Core Xeon 5160 processors for US$800 more, and starting April 4, 2007, two 3 GHz Quad Core Xeon X5365 (Clovertown) processors for US$1500 more.
    I would not rely on AppleInsider as a resource. It is a rumor site.

  • Can not run Snow Leopard in 64 bit

    Hi there,
    I recently bought the Snow Leopard OS for my iMac 2007/2008 model.
    Here are the specks on my iMac:
    Model Name: iMac
    Model Identifier: iMac7,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2,4 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache: 4 MB
    Memory: 4 GB
    Bus Speed: 800 MHz
    Boot ROM Version: IM71.007A.B03
    SMC Version (system): 1.20f4
    My question is, how is it that I can not run Snow Leopard in 64 bit – it is an Core2Duo which to my understanding is also an 64 bit processor.
    To add to my confusion I’m running the Windows 7 64 bit version on the same iMac via VMware-fusion.
    Had some help on this issue before, where this mac-person found an small program on the internet that is suppose to analyse and change some settings so it runs 64 bit - but my model was not supported by some odd reason.
    Is here anyone that can reply on my question??
    Thanks
    Arni

    Welcome to Apple Discussions.
    I have to admit I'm a little confused. I don't believe your iMac is a Core 2 Duo. The only Core 2 Duo in 2007 was the mid 2007 24" 2.8 GHz processor, all other 2007 iMacs are 32 bit. I would recommend going to this site to see what the specifications are for your machine, simply type in the SN and it will let you know.
    http://www.appleserialnumberinfo.com/Desktop/index.php
    Regards,
    Roger

  • Booting Snow Leopard as 64bit kernel

    For all those wishing to boot Snow Leopard as 64bit, here's the how/why and a piece of free software that will do it for you
    Info:
    http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html
    Download:
    http://dl.getdropbox.com/u/992591/SMS/32-%20or%2064-bit%20Kernel%20Startup%20Mod e%20Selector.zip
    It's free but ask's for you to donate if you use it.
    I am not affiliated with the developer in any way. I just use it
    Bobs

    Hi Peeps
    Just a quick note to say I didn't start this thread to have people argue over the benefits of 64bit, I started it to answer how to make Snow Leopard boot into 64bit. I think that at the moment the benefits are slim to none but it is nice to experience. To clarify, I have been running Snow Leopard since the week it came out and after a few days with it I decided to run it as it was designed at 64bit. I do not use this OS for music, it is strictly my "domestic" OS, email/surfing/gaming etc. I have been enjoying since the switch a rock stable and slick OS. Most of the applications I use daily are indeed 64bit already and have also proved stable too. When my music drivers and plug-ins are indeed 64bit I will enjoy upgrading my work OS to Snow Leopard and subsequently all the benefits that 64bit can bring to all of our audio needs. I must say though, I am very impressed with Snow Leopard as an OS and after "demoing" Logic Pro 9.1 within it I am looking forward to the inevitable migration rather than dreading it as in the past with previous OS/Logic upgrades.
    Hopefully you will enjoy 64bit as much as I have and within a short while we'll all have the pleasure of 64bit within our favourite occupation too.
    Finally I do believe, correct me if I'm wrong, that on the Mac platform at least Logic Pro 9.1 is the first 64bit DAW. That to me is fantastic and needs applauding.
    Cheers!
    Bobs

  • Is it possible to bitlocker-encypt a UEFI/GPT drive from which I boot with Windows 7 64-bit ultimate (TPM-motherboard)?

    Is it possible to bitlocker-encypt a UEFI/GPT drive from which I boot with Windows 7 64-bit ultimate (TPM-motherboard)?

    Sure. BL does support GPT.

  • How to dual boot window 8.1 64 bit with xp sp1?

    Hello Hp PC Experts,
    Sir i was bought HP 15-r119TU two week  ago. So i face problem of dual boot with this HP note book. I need dual boot  window 8.1 64 bit with XP SP1. Kindly help me at the earliest possible.

    @mp56 
    ‎Thank you for using HP Support Forum. I have brought your issue to the appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post ( serial numbers and case details).
    If you are unfamiliar with the Forum's private messaging please click here to learn more.
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  • Can I dual boot snow leopard and mountain lion if I've installed boot camp on my drive

    Can I dual boot snow leopard and mountain lion if I've installed boot camp on my drive

    Yes as I said before. If your model Mac came with Snow Leopard and you are now running Mt Lion and have Windows installed in a Boot Camp Partition all you have to do is make the Mt Lion partition smaller, take the free space and make it another Mac partition and you should be able to install Snow Leopard into that partition.
    I have Snow Leopard, Lion and Mt Lion installed on my MBP. No Windows in a Boot Camp partition because I run Windows XP in a Virtual Machine on both Lion and Mt Lion.

  • Can I dual boot Snow Leopard and Mountain Lion on one hard drive?

    I want to make a new partition and be able to boot to either OS. Is this possible, if so, how? I would think just make a new partition and install the dmg file to that new partition.

    @jimmyk11: AppleCare has actually informed me that "No - this MacBooPro9,1 cannot boot Snow Leopard".
    It originally came with lion 10.7.4 installed. I have since upgraded to Mountain Lion 10.8 and (today, after a week or so of ML) I reverted to Lion 10.7.4. But now I find I can no longer boot into Lion 10.7.4 from my external FW800 drive (for troubleshooting and housekeeping). So it looks as if the "boot problems" are not confined to Snow Leopard 10.6.8.
    Interestingly, I can use this same external drive to boot my iMac (10.7.4) and my older MBP8,3 (10.8) into 10.7.4 - but not the newer MBP9,1.
    The MBP9,1 with Lion and Mountain Lion is turning into a disaster when it comes to external booting. If I could, I'd demand a return and a refund. After bottle-feeding Lion for a year, 10.7.4 seems basically stable and can still boot into Snow Leopard and Lion from my external drives if needed. But now I see I have a worse problem: Crippled Hardware. I suspect this bug needs a firmware update - if it is fixable at all.

  • Urgent help needed related to boot camp and Win7 32 bit

    I have installed boot camp and Win7 32 bit on my iMac (2010) but I can't start from my mac os even by holding the option key. Windows doesn't recognize my wireless mouse either, but for now going back to the mac os is the priority. Can anyone help please?

    Welcome to Apple Support Communities
    Hold the Option (Alt) key after hearing the startup chime and until you see all bootable partitions in the screen. Do you see the OS X partition? If so, select it to start up in OS X. If you want to start up in OS X by default, open System Preferences > Startup Disk, and select your OS X partition.
    Respecting to your wireless mouse, you have to install the Windows support software. To download it, you can use Windows or OS X, from this site > http://support.apple.com/kb/DL1630 If you are in Windows, decompress the file and run the installer. If you are in OS X, follow the steps of the website to burn it to a USB drive

  • Can I erase the boot camp partition and dual boot snow leopard and mountain lion instead

    Can I erase the boot camp partition and dual boot snow leopard and mountain lion instead

    Please don't double post. Look at your other thread.
    If you want to get rid of Windows and the BC partition use the Boot Camp assistant program to remove the Win/BC partition. Don't do it manually with Disk Utility Use the BC A program.

  • "Your bootable USB drive could not be created" "Boot Camp only supports 64-bit Windows installation on this platform. Please use an ISO file for 64-bit Windows installation."

    I try to install windows7 system on my macbook air, which version is 10.8.5. When I open the bootcamp, it let me to choose a windows ISO image, which I've already downloaded from this website: http://www.w7forums.com/threads/official-windows-7-sp1-iso-image-downloads.12325 /, it also asked me to select a USB drive, which is kingston that has 8GB. Then when I clicked "continue", it said that "Your bootable USB drive could not be created" "Boot Camp only supports 64-bit Windows installation on this platform. Please use an ISO file for 64-bit Windows installation." But actually the ISO image I downloaded is 64-bit windows7. I don't know why this would happen. Could someone help me please!!

    Thanks for your feedbakc Kiranjj!
    I identified the reason to be that the W8 installation file didn't download completely from a Mac OS-device. I downloaded from another Win-device and the moved the installation file with a USB-stick and then everything worked diectly! But thanks anyway.

  • Mac Pro 2010 triple boot (Snow Leopard + Windows + Yosemite)?

    Hello All,
    This is my first question here, I'm usually trying to find the answer myself, but this time I wasn't able to find anything clear enough to me. So I hope that someone can give me clear and easy to understand answer. I must also tell that my English isn't perfect, but should be more than good enough for communication. :-)
    I have Mac Pro 2010, 4 core CPU 3.2 GHz, 6 GB RAM, ATI 5870.
    HD Bay 1: WD Black 1 TB - Boot Snow Leopard 10.6.8
    (Just to add: I am happy because when I bought my Mac it came with 10.6. I am happy with it, it's stable, and I want to keep it as it is)
    HD Bay 2: WD Black 1 TB - Boot Windows 7 x64 (bootcamp, full drive)
    (I am very happy how it works, so I want to keep it as is)
    HD Bay 3: WD Green 2 TB - for all kind of data storage
    HD Bay 4: Was empty until yesterday, but now I have another WD Black 1 TB to put it in - still not formatted.
    I would like to install Yosemite on that new drive (first I was thinking about Maverick, but then I saw that some new applications will not run, like Final Cut Pro X, new MS Office, still in beta, plus I would like to use iMessage, etc.), and keep everything else as it is now - absolutelly untouched.
    • Is it safe to do it, or I can make some mistake and lose Snow Leo and/or Windows?
    • Is position of the drives important? Should I, for example, put new drive in a Bay 3, and move data disk to Bay 4, or it doesn't matter?
    • When I download it from App Store, and when installation starts automatically, do I have an option to select to keep untouched everything I have now?
    (I don't want even to collect any data from Snow Leopard, like mail settings, bookmarks, applications installed - absolutely nothing, it should run as a totally new comp and without any interaction with Snow Leopard, except ordinary hard disk access, like any other hard drive)
    • Will my bootcamp drive be safe, I will still be able to boot from it?
    I was also thinking about this:
    I saw that it is possible to make bootable USB flash drive with installation. If I do that, and if I phisically unplug all other drives except a new one, then do installation, shut it down, and plug back all other drives, will everything work? Will I have triple boot when I press option key during start-up? Does all this makes sense at all to you?
    Finally, does anyone have some experience with Mac Pro 2010 + ATI 5870 with Yosemite? Is it smooth, no problems with graphics or some other things?
    I will really appreciate some answer about all this.
    Cheers!

    Some tips about Yosemite and Core Storage from MacIntouch Reader Reports on Yosemite:
    Ric Ford [MacInTouch]
    Yosemite's changes have led to questions and confusion about disk formatting and partitioning issues, backward compatibility, and dual-booting Mac OS X 10.6 and Yosemite. Below are a few notes on these issues from an email discussion (questions, tips and clarifications are welcome). 
    Core Storage changes debuted in OS X 10.7 Lion, with Apple's new FileVault 2 whole-disk encryption and hidden Recovery Partition.
    Generally, running OS X 10.7 and up shouldn't corrupt or convert the HFS+ partitions used by pre-OS X 10.7 systems (still supported in later OS X versions). There are, however, a few special cases to beware, and this is where things get confusing. Here are some specific issues:
    1) FileVault 2 encryption and "Fusion" drives both depend on Core Storage, so applying those to any partition will render it inaccessible by pre-OS X 10.7 systems.
    2) Yosemite's installation process silently converts a partition to Core Storage, incompatible with Mac OS X 10.6 and earlier. Ars Technica's review describes this issue.
    3) Running Disk Utility's "repair" function in Yosemite against a Mac OS X 10.6 (HFS+) partition has caused problems in some cases, such as making the Mac OS X 10.6 partition unbootable.
    (A search for Core Storage on MacInTouch will turn up more discussion and tips.)
    See also:
    Core Storage [Wikipedia]
    OS X Mountain Lion Core Technologies Overview (PDF) [Apple]
    OS X 10.10 Yosemite: Installation [Ars Technica]
    File system changes in Lion [Ars Technica]
    Can't remove Core Storage from hard drive [Apple Discussions]
    How To: Disable CoreStorage on Mac OS X 10.10 (Yosemite) [Symantec]
    http://www.macintouch.com/readerreports/yosemite/index.html#d16apr2015

  • Problem: installed new hard drive but can´t boot from leopard dvd

    So I just installed a new hard drive in my ibook G4. At first I started up the computer using the leopard DVD I had purchased. Got to Disk Utility and after a few seconds in the spin wheel came up and froze. So, I shut the computer down and when I tried to boot it again from the DVD I wouldn´t even reach the apple screen. Tried it a few times unsuccessfully.
    As an alternative I just tried booting the comptuer using the original CD and it did read it.
    I am currently at the installer page but I am concern about installing the old CD as I really would like to run the leopard dvd 10.5.
    Is it that my ibook g4 can´t be booted from leopard dvd?
    Please advise. thanks!!

    OK, so I decided to leave my computer resting all night and give it a new try this morning.
    This morning I was able to boot from the Leopard DVD, so I don´t really think it is a problem with my superdrive. Started to format at 32 minutes to complete. Then towards the 10th minute the spinning wheel appeared, I heard the fan running, then it stopped and then I heard the superdrive making some reading noises. Then all noises stopped and now the spinning wheel continues..not sure what to do now.
    In the meantime, I wanted to share also another problem that I´ve been having for quite some time which I don´t know if it is related to my current problem. It is with the computer power:
    - I´ve been experiecing load surges that take my computer from 100% to 1 or 0% and then goes to sleep or shuts down. The same thing happens when I am charging the computer.. it starts charging and showing 2 or 3% charge and then jacks up to 100% in minutes.
    - My computer also makes like a slight humming noise sometimes when the ring around the power cable is in orange color, so I move it around until it stops. When I do that sometimes it goes from orange to green eventhough it is not fully charged. There has been times that under green it appears to be charging (battery charging icon on desktop shows up), and other sometimes like right now when it is in green color and the battery icon on the desktop says ´99%´. Weird enough, once I get the cable in a certain position it enables the battery to charge, if I keep it without moving it, the load surges disappear (at least for some days).
    Should I try resetting the PMU? I´ve not done it because I don´t know what consequences it may have.
    NOTE: When I bought the computer I never calibrated my battery because I was (and still are) clueless when comes to computer technicalities. I tried using a different power adapter and get the sample problem.
    Below is the information I get from coconut battery:
    My battery is in its 256 load-cycle. current battery capacity 58512mAh (original battery capacity: 4400 mAh).
    The last system profiler I was able to pull shows:
    Battery Information:
    Charge Information:
    Charge remaining (mAh): 58320
    Charging: No
    Full charge capacity (mAh): 58512
    Health Information:
    Cycle count: 256
    Battery Installed: Yes
    Amperage (mA): 0
    Voltage (mV): 16250
    System Power Settings:
    AC Power:
    System Sleep Timer (Minutes): 15
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 15
    Dynamic Power Step: Yes
    Reduce Processor Speed: No
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On LAN: Yes
    Wake On Modem Ring: Yes
    Display Sleep Uses Dim: Yes
    Battery Power:
    System Sleep Timer (Minutes): 5
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 5
    Dynamic Power Step: No
    Reduce Processor Speed: Yes
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On Modem Ring: No
    Display Sleep Uses Dim: Yes
    Reduce Brightness: Yes
    Hardware Configuration:
    Clamshell Closed: No
    UPS Installed: No
    AC Charger Information:
    AC Charger (Watts): 26
    Connected: Yes
    Charging: No
    Any help is greatly appreciated.
    Thanks a bunch!!!

  • HT201364 hi..i have ibookg4 i change the harddrive on it..can u tell me how to boot snow leopard on it..?

    hi

    You cannot boot Snow Leopard on a G4 iBook. Snow Leopard can only be installed on an Intel Mac.
         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.

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