Sixty Four On Thirty Two | How to (En)

Sixty Four On Thirty Two (SFOTT v1.3.9.5)


for 10.9.2 see here to get instructions :

Mavericks On “some” Unsupported Mac Models

Mavericks and Mountain Lion On “some” Unsupported Mac Models

Couldn’t be done without Tiamo© boot.efi from Macrumors –

Report bugs to moc.n1664059411edmeo1664059411@meo1664059411

Major Update with new Options see here for details, updated How-to coming soon.
New Options :
– Choose your installer anywhere even on remote shares.
– Choose Mavericks or Mountain Lion
– automatic (or manual) Check for Updates.

This Script will fully automate the process for making a USB key
for 32 bits Unsupported Macs so they can install and Run mavericks (64bit)

The script will also allow you patch your key again later on and “at will” to add other computers if needed.

All this Couldn’t be done without Tiamo© boot.efi from Macrumors at the first place

1. Prerequities:

  • 1.1 Of Course an OS X Mavericks Installer in your App folder !

    Currently testing with Mountain Lion

  • 1.2 USB Key / hard Disc

You Only need to have a 8 Gig USB key (or a Hard disc),

If you are running from the target computer,
You just have to choose the USB key/hard drive to use.

If you’re not running the script from the target computer,
you’ll have to add computer infos manually.

Easiest and safiest way is to run sfoot from the target computer.

1.3 What sfott is not:

It will not help you to get Mavericks or Mountain Lion.

You’ll have to get it from the Appstore or another of your computers.

It will not help you to get kext for wifi or graphic acceleration either.

It won’t deal with any Video Card problem you may have

(especially on the Macpro1,1 or wifi on MacMini2,1)

This is not the purpose of this script. it only make a key and allow you to patch it again easily.

1.4 What sfott is:

Even if it (for now) runs into the Terminal,

It will simply help you making a key with the tiamo’s boot.efi in just a few clicks, and save you time and headache by not entering any command line.

Sfott comes bundled in an Applescript Application – the Launcher.

It is installed in /Applications/Utilities/sfott/

The sfott script is bundled in the Package content of this app.

I currently have successfully created a key for a Mac mini2,1 and then patched it again for a Macpro1,1.

2. Install Sfott:

Fecth the SFOTT_install.dmg from Main Sfott web page here :

Open the disc image and double click the installer.

It will Install soft in /Applications/Utilities/sfott/

3. Use Sfott:

3.1 The Sfott Launcher

Go to the Sfott Folder and launch the

This is the launcher. It will save you time by asking for your administrator password, then Open the Sfott shell script in a new Terminal window and pass your password thru so you can run it with admin privileges.

The launcher will quit just after launch – note that your password is not saved.

  • Launch it


  • password prompt


3.2 The sfott shell script

Once launched by the sfott launcher, you’ll be prompt for your language.
I’ve made hard work to make it localisable. for now English and French are available.


If you’d like to make a translation, either email me, or just duplicate the files in /Applications/utilities/Sfott/ make the translation, save it and send it to me. I’ll be glad to add it to the script.

Edit it then send it back to me.

I’ll ask here and there for the most translations I can.

So either select French or english and press [ENTER]. You’ll have to accept a first warning but you won’t be asked twice.

You’re now in the Main Menu.


You’ll notice that you allready have some infos displayed concerning the current computer (the one you’re running sfott from).

It will display:

  • the “board_id”,
  • the “Model”
  • even tells you if you have a 32bit or 64bit firmware.

Once set, it will also display

  • Computer Model to add: MacMini2,1 in the exemple
  • Computer board_id to add: Mac-F4208EAA in the exemple
  • Chosen USB/Media Key is: AHHHH in the exemple
  • Chosen System for Install is: OS X Mavericks
    • soon we’ll be able to choose Mountain Lion if tests are successfull.

3.2.1 Settings

The first you’d like to do at the first launch is go to the settings by selecting the Choice3)

  • 1) Go back to main menu
  • 2) Choose USB/media key
  • 3) Set the Computer to add
  • 4) Select OS X System Version – Coming soon
  • 5) Set alternate Working Directory – Coming soon
  • 6) Enter a newer Tiamo boot.efi url – Coming soon



All thoses settings can also be set via the defaults command.
Only the first 3 are active for now. see below for the defaults write commands. Choose USB/media key

There you will set which USB Key or Hard disc you want to use to make the Key.

Note : Hard work has been done to avoid choosing:

  • the System,
  • Network shares
  • Read Only dmg.

You’ll be warned if you choose:

  • An internal Volume, but you will be able to do so
  • A read Write disc image, but you’lle be able to do so in case you’d like to clone later on a USB stick. – I’ve not tested this yet.
  • DVD is not supported at all.


Once you’ve choose you Media, confirm to save the setting, and then go back to Settings Menu. – Set the Computer to add

There you choose for which computer you want to make the key.
If like in the example it is for another computer choose

** Choice 2) Set Another Computer**

WARNING : there only a very basic verification here.
If you enter something either with a space or tabulation, you’ll be prompt and asked to type again. For now, there is NO other Checks so be sure to enter the Correct informations for the Model and the board_id.

Otherwise, you just won’t boot at all, or to be more precise you’ll be able to boot (once the key is created) but the INstaller with claim that you can’t install Mavericks.
Soon there will be a way to call sfott from the Terminal so we’ll be able to patch again with correct ibnfos this time as they will be automatically calculated because you’ll be on the Target Computer.



1) Choose Current Computer

If you’re running Sfott on the Targeted Computer then just confirm at the Menu by hitting 1)

You are now set to Create the key.

All thoses settings are saved so you can call Sfoot later on and won’t have to enter everything again.

hit 1) Go back to main menu

and then select – Create / Patch Key

Ok now you’re ready to Rock.

you’ll have several options here:


They are quite obvious.

  • 1) Create a New key Step by Step
  • 2) Create a New key in Autorun
  • 3) Patch existing Media with Current config
  • 4) Extras – display only infos displayed elsewhere for now.
  • 5) Go Back to Main Menu
  • 6) Quit

If you have correctly entered all required infos, then just go and choose option

2) Create a New key in Autorun

You’ll have an ultimate warning displaying infos of the target computer to add to the patch, the Volume choosed (JUST CHECK THIS REALLY, it will be totally erased)

Confirm and go take break. The longuest part is the Packages copy part.
everything else is quite fast depending on your computer, your hard disc and the key you’ve choose.

each time I did erase my 8Gb Key it took 20-25 mn to complete.

Note: if you’ve played around before launching Sfott, just be sure any InstallESD.dmg image is allready opened nor Os X Base System.

For now there are no checks with uuid so eject all dmg (Os X installers I mean) then run the script in autorun. That way you’ll be sure all will be fine.


If you’d like to do stuff step by step (for the Key creation), then choose:

1) Create a New key Step by Step

It is basically the autorun but step by step (quite).

I won’t go into details. Screenshots speaks for itself.

Note : If you decide to go step by step, Be sure to do them in order.
Don’t run one step if you did not run the previous one. ( you could but if you renamed the key for example it will fail)


If you’d like to “patch again” your key then just choose the option 3) Patch existing Media with Current config

In this menu you’ll be able, and surelly be prompt to choose your sfott Key.
if you used the Autorun or step by step then most likely you’ll have a .iamasfottkey file identifier to help the tool find the Key. If it finds one you’ll be prompt if you’de like to use this key for another patch, or if you want to patch another Key – This Key MUST be created with the clone Method of the BaseSystem. if not just don’t use it.


3.4 Extras commands

defaults write

Some settings are saved in a .plist in the User’s Preferences folder using Apple’s defaults tool.

For those commandline savy, You could then if you like prior to launch the SFOTT tool change them like this :

sudo defaults write $HOME/Library/Preferences/com.oemden.sfott Media USBVolumeName
sudo defaults write $HOME/Library/Preferences/com.oemden.sfott SupportedBoardIds Mac-F4208EAA
sudo defaults write $HOME/Library/Preferences/com.oemden.sfott SupportedModelProperties MacMini2,1
  • where USBVolumeName is the Volume Name of the target USBkey,
  • where Mac-F4208EAA will be the Board_id of the target Computer,
  • where MacMini2,1 will the Model of the target Computer.

More settings will be available, later on.

you must sudo – for now because the script in runned with sudo and plist is set under sudo. Note to myself just chmod the file.

if you do not run sudo

  • write will fail (if already runned at least once)
  • read will output nothing
  • 1) those are NOT the correct defaults write for the plist command during patching.
    They are only for the sfott tool. so don’t try those on the USB plist or you will mess things up.

  • 2) Be sure to enter the correct info of course.
    if you’re running the tool from the target computer only the USB default write will be relevant.
    two others are always calculated at launch.

I’m currently preparing tests for Mountain Lion,
there are tiny differences on Volume labels of the dmgs so I have to adapt.
Then I’ll test it. If it is a success there will be a choice or prompt to choose target OS Version 10.8 vs 10.9.

I’ll make Mavericks the default settings anyway, but ML could be selected.


– Improve basic user input check for the new computer confirmation. – Done to improve again
— Change working directory inside the bundle – not in tmp anymore.
or at least include boot.efi and icon in the bundle.
so no need for a working dir should then be needed at all
— A better help. this may be online and a pdf too – English Done. todo french.
— explain that now anyone could make a translation
— change the “first prompt” to list available languages rather than hardcode them
tricky would need to source a first file for trads just for this menu – doable.
— Choose Mavericks or ML – done
— Menu Set computer: Add a choice to keep saved computer in pref
not clear enough right now
— ability to choose or not to display some more vars – Done invoke script with -v
could be in a special page called from extras menus
— Option Make a standard Key – not a patched key a real key based on asr method
— Option Make a standard Key with Apple tool – not a patched key,
a real key based on createmediainstaller method – official official method
— Move all this to Xcode
— Add a Patching menu for the Real “unsupported” Computer (in case a new boot efi comes by)
would need Target disk mode
— Look and see if there is a way to add it to the recovery partition – if exists
— add a small script in usr/bin to call it from? – done

Versions History – The script

Log History

Back online…. some news


Hello guys, I’ve been really busy in my new job and personnal life since last year. I’ll try to answer hundreds of pending comments concerning Sfott. Please Note that I do not have any hardware to test SFOTT since a

Posted in Admin, Mac, sfott

SFOTT download issues


Hi all, Downloads have reached a huge rate from 25k to 100K+ in less than a month… Holly S…. Website then had serious issues with downloading for about a month, Ticket has been made and I’ve asked my provider to investigate

Posted in sfott

Je suis Charlie

Posted in Admin, Defaults, Deploy, Design, Development, Linux, Mac, sfott, tips tricks scripts, Windows

SFOTT | YOSEMITE beta release

EDIT 20141118 : Update runs fine from AppStore with 10.10.1 seeded today. I am very very very late at coding Sfott, I have focused on Yosemite Server for my job lately. I’ll do my best to go further and at

Posted in sfott Tagged with: , , , , , , , , , , , , , , ,

SFOTT | YOSEMITE : success


Thanks to macrumors great people, I too, succeeded to install YOSEMITE (on my MacMini2,1) I do not have anymore MacPro1,1 at hand to test on it. But if a MacMini2,1 takes it, no worries Macpro1,1 & 2,1 will do has

Posted in sfott Tagged with: , , , , , , , , , , , , , ,

10.9.5 Update and SFOTT | All smooth but BEWARE (again)


10.9.5 Update runs smooth. No need to repatch the System once done, like for the previous 10.9.3 / 10.9.4 I’ve just downloaded and installed the 10.9.5 Update on my Guinea MacMini2,1 with no hassle. Note I do not have access

Posted in sfott Tagged with: , , , , , , , , , , , , , , ,

SFOTT | Successful reported installs with Tiamo’s boot.efi and SFOTT script.


Successful reported installs with Tiamo’s boot.efi (and SFOTT script). PLEASE NOTE : Getting it to be installed is ONE thing. Having a usable system is another thing. For some machines it may be not worth it, to loose wifi, audio

Posted in sfott Tagged with: , , , , , , , , , , , , , ,

SFOTT | Comments replies


Dear All, Just a word to tell you, I’m very late in answering comments and emails lately. I’ll answer them all. Major Changes in my professional life are occurring. Please accept my apologies, and note that I’m still working on

Posted in sfott Tagged with: , , , , , , , , , , , ,

10.9.4 Update and SFOTT | All smooth but BEWARE (again)


10.9.4 Update runs smooth. No need to repatch the System once done, like for the previous 10.9.3 I’ve just downloaded and installed the 10.9.4 Update on my Guinea MacMini2,1 with no hassle. This Update still installs in two steps :

Posted in sfott Tagged with: , , , , , , , , , , , , , ,

SFOTT | 10K downloads


Thank you all ! Today, 10K downloads have been reached for SFOTT. I hope all of you enjoy as I do. Thank you Tiamo for your great job. N.B. : Currently editing code to test with YOSEMITE… stay tuned. Merci

Posted in sfott Tagged with: , , , , , , , , , , ,
131 comments on “Sixty Four On Thirty Two | How to (En)
  1. Avatar Beau says:

    Whlie making a Sfott key its stuck on verifying ?!

    • oem oem says:

      Hello Beau,

      Do you mean stuck on the step just “after” the asr clone/restore or “before” the cloning takes place ?
      I would suspect either your USB stick if the verifying step is after the clone or the dmg inside the installer if it’s before the clone is done.
      maybe you can get the installer again. (rename the one you have – don’t trash it – and copy once again the installer in your App folder or anywhere you want, and tell in Settings where it is) to see if it helps (meaning the dmg was somehow corrupted)

      You could use the verify/repair functions in the extras menu too or simply with Disk utility.

      Do you run the script in autorun or steps by steps (just to know).

  2. Avatar Lawrence says:

    Board id’s for the Mac Pro’s below (you’d think this *could* be in the instructions…)

    MacPro1,1 Mac-F4208DC8
    MacPro2,1 Mac-F4208DA9

  3. Avatar young2young says:

    Hey Everyone … completely off topic in an on topic sort of way ….
    Thank you thank you thank you SFOTT … I have installed on my macpro 1,1 that has been upgraded to 5365’s, 4870 1Gb graphics card, MOTU PCIe Card and 13Gb Ram ..

    2 things: I seem to be having issues with Safari … if I reset it … it becomes unresponsive and have to force quite … this is no big deal but most importantly …

    I am a .. or was a … or for a time I was … a professional musician .. yes believe it or not I got paid to make music … I have been born and raised on Emagic on an Atari then to >> Logic 4 >> logic 8 and now want to upgrade to Logic X … is there any of you out there that has hacked there macpro 1,1 with SFOTT and then upgraded to Logic X … if so … what have you found .. re eg latency, screen refreshes etc … does it seem to really tax the processors as it has to convert to 64 before being processed or ?? … please keep in mind I do music and am only a layman on computer terms … any thoughts would be helpful … $200 bucks isnt much but want to make a right decision … go to Logic pro 9 or Logic X … thanks !!! :)

    • oem oem says:

      Hello young2young,

      I can’t answer on this but if any can I’m sure he will….

    • Avatar Casper says:

      Hey there. Im af professional musician too, and I did the SFOTT upgrade to Mavericks 10.9.5 on my Mac Pro 1.1 (32gb Ram, Radeon 5770 1Gb). It runs surprisingly good and I havent experienced any trouble. Ive been recording and mixing a project with 20+ audio tracks and theres been no problems at all. So go for it!

  4. Avatar Tim says:

    Installed Mavericks on a Black 2006 Macbook2,1 w/ 3g SSD drive and 3GB RAM. Nice speedy machine now.

  5. Avatar Jason Howells says:


    Thanks so much for all you offer here – amazing work!

    I’ve just downloaded your latest v1.4.4 download. I have created the key successfully on the USB, except that I noticed that when Terminal displayed the model it showed as a Mac Pro 3,1 when I actually have a 1,1 (running 10.6.8). I see other users have had this problem but I thought in your replies to them that this was addressed in your latest download, so I continued to make the key.

    When I try to install Mavericks from the USB key I have the message ‘OS X Mavericks cannot be installed’ (this is using the option key to boot and selecting the USB to boot from).

    As Mavericks was blocked to my model on AppStore, I used the ‘Mavericks download enabler/Kext Utility’ (from here) that allowed me to download it. I though this may have caused the problem, so I checked in Terminal using ‘ioreg -p IODeviceTree -r -n / -d 1′ to reveal the Model and board id. It also shows Mac 3,1 and a board id of ‘Mac-F42C88C8′. However in System profiler it shows as a Mac Pro 1,1.

    Any suggestions?


    • oem oem says:

      Hello Jason, sorry for the late reply.

      Well, you may have this issue :
      I’ve not been able to reproduce the issue ! but I made a small script to remove the kext and clean up a bit.
      This kext is what I call the MDE version1. and Rastafabi made a second version of “MDE”.

      I did not include the Remove MDE in the SFOTT download but as a separate download (for now) as I prefer to avoid confusing “basic” users.
      What you say suggest me to include it after all in the next release.

      Please Try to use my “MDE removal” – it won’t harm and will only try to remove the .kext if itfinds it, it not then no removal is done.

      Again I’ve not been able to reproduce the MacPo3,1 issue, but I’ve installed (and removed) more than twice the kext to be sure removal and kext cleaning was fine.
      Don’t hesitate to report back, at least to know if the Remove MDE solved the MacPro3,1 issue.

      my best

      • Avatar Jason Howells says:


        Thanks for the reply.

        You’re right I have the problem caused by MDE version1.

        I did try ‘SFOTT_MDECheckAndRemoval.command’ but it did not seem to work – when I ‘ioreg -p IODeviceTree -r -n / -d 1′ and try to use SFOTT again, but it still displays as a Mac Pro 3.1.

        I noticed that when I used SFOTT_MDECheckAndRemoval.command it did not ask for my admin password as you suggested in your instructions. But Terminal did seem to run the script, and it finished with ‘[Process Completed]’.

        Any other suggestions?


        • oem oem says:

          Hi Jason,

          For the password this is strange. my guess is that you’ve runned something with a sudo command no long before running this.command.
          it’s first function is to check sudo.. (To be 100% sure I’ll download it from the website and double clic on it) I’ve checked that on my computer just minutes ago.

          The bad thing is that it has not solved the MacPro3,1 issue. and I’ve not been able to reproduce this “MacPro3,1 behavior” on my Mac Mini or the MacPro….
          if you still have the MDE “v1″ as I call it, can you send it to me via email so I’ll be sure I have the same. maybe there are other versions than the two “I know of”.

          Basically the script search for a kext “SMBIOSEFI.kext” and removes it.
          then it erase the kext_cache “/System/Library/Caches/”
          and in extensions folder “touch /System/Library/Extensions/”
          the updates the kextcache on the root Volume “kextcache -update-volume /”

          Now to go further, I think it’s Bill here on the comments, had to install a Fresh 10.6.8 to get normal behaviour and have no more a MacPro3,1 report.

          • Avatar Jason says:


            I tried two versions of Mavericks Dowload Enabler, both caused the Mac pro 3,1 problem and stopped the SFOTT key from working.

            One from here:
            another here:

            My workaround was:

            1 – Install ‘Mavericks Dowload Enabler’
            2 – Download Mavericks from the Appstore
            3 – Copy the Mavericks installer to disk other than my start-up
            4 – Restored my system from a TimeMachine back-up (so my machine now correctly shows as Mac pro 1.1 again)
            5 – Used SFOTT to create USB key and then install Mavericks

            I have 10.9.3 running on a 2006 Mac Pro 1,1 and so far have had no problems.

            Thanks again for you work.


          • oem oem says:

            Hello Jason,

            Sorry for the late reply I took some time OFF.
            Thank you for the hint.
            Obviously my “attempt” to remove the MDE is not working – I could not reproduce the behavior though.
            Anyway, you and others had to use a Clone / timed Machine / fresh 10.6.X / 10.7 system to get through it.

            Thanks for sharing,

  6. Avatar Cory Moore says:

    Do I need this if I upgraded my MP to 2 Quad-Core Intels, ATI 5770 and updated the firmware to 2,1 already? Or can I just make a Mavericks boot disk and boot from that?

    • oem oem says:

      Hi Cory,

      Yes you should be good to go with a MacPro1,1 with a MacPro2,1 flashed firmware. Others have done it and have reported success on the comments here.
      And yes “procedure” is create a USB Key then boot from it and you will be good to go.

  7. Hey man! Thanks a lot! This tool is awsome!

    I have a white Macbook4,1 from 2007 with Original Snow Leopard.

    Well… I’m having a similar issue of this comment:

    I’ve followed the instructions to make a dummy install, then convert to a real key…
    But nothing happens. It start booting from SFOTT USB or drive (I’ve tryed both) but after this the Leopard starts normally.

    I’ve enabled the verbose mode in boot.
    Immediately after the boot device selection, a too fast screen blinks up and show:

    efiboot loaded from device: Acpi(xxxx-xxxxxx-xxxxxx-xxxxx)
    boot file path: \System\Library\CoreServices\boot.efi
    .Loading kernel cache file ‘System\Library\Caches\\Startup\kernelcache’
    ..Loaing ‘mach_kernel’…
    root device uuid is ‘xxxxxxx’
    Loading drivers…
    Loading System\Library\Caches\\Startup\Extensions.mkext………..

    I’ve tryed a lot of things…. but anyone worked.
    Thanks for your help.

    • oem oem says:

      Hello Lucas,

      hmm hard one that one.
      when you talk about having the same issue do you mean language issue?

      I’m working among other things on making the SFOTT key appear in Startup Preferences pane.
      I say that because you show me some stuff on which “script is playing with” (in my current dev I mean, not the official available release).

      I’m not sure what you’re showing me is actually a verbose from the key booting or from your SL now Leopard Disc.
      remove the Snow Leopard hard drive if you can, and maybe plug a spare Drive in firewire/USB for the Mavericks install.

      Usually taking out the internal HDD is not that hard on macbook. (If I’m correct it is a white or black Macbook right ?)
      that way we’d be sure the verbose is from the sfott Key and that what I’m working on (aka bless commands on the key) would be helpfull.
      Now if a macbook2,1 could do it I’d guess your should.

      I mamay be able to get hand on a black macbook but first I’d to have a spare 2,5″ HDD. If I can get one I’ll try to install Sfott on a (last) partition of this 2,5″ HDD and see if I can get it.
      But this macbook is one of my client’s so I know it will be hard to do so. I’ll ask if I can borrow it but don’t expect it to be done soon…

  8. Avatar Mark says:

    Hi guys

    Right now I am running a Mac Pro 1,1 with 10.9.1 on it, and I haven’t updated to 10.9.2 (bad, I know lol). Can I skip this and just go straight to 10.9.3? That would make it so much easier!


    • oem oem says:

      Hi Mark,

      Well yes and no.

      Yes you can skip 10.9.2 and get 10.9.3, and No as you’ll then have to get trough the re-patch action just like the 10.9.2…
      10.9.3 is a combo if you below 10.9.2 meaning you’ll have the behaviour “reboot failure needing a repatch” but it should not be a big deal.

      — If you only have a USB stick at hand be sure to have the SFOTT 1.4.4 app/script on it then follow instructions (here:

      — If you have another system (10.6.8 – 10.7 for example) at hand be sure to have the SFOTT 1.4.4 app/script on it, and you’ll repatch it (more) easily (no need to boot from the key)
      in either case just follow instructions to repatch the System.

      It looks like it is hard but it really is not. I just (over) explain to be sure I don’t miss steps, but really it is not that hard.

      !! Of course be sure to have a valid CLONE and/or BACKUP before Updating !!

  9. Avatar Steve says:

    Hello – Thank you for making this available to us!

    Once the script finishes what should the contents of the USB flash drive look like? When it finishes mine contains an Applications folder and a file called “Install OS X Mavericks”. However, the installer file is only 20.5MB. Obviously, that is not a complete installer, and I cannot boot from it.

    • oem oem says:

      Hi Steve,

      It is ok that the installer is not heavy file. all the Packages are copied onto the key.
      The fact that you don’t see anything is just because there is a step “to make the key look good” aka not having all the files and folders, but they are here.

      – You can type (copy paste) in Terminal :
      ls -la1 /Volumes/SFOTT
      and you’ll see files.
      – You also just can look at info of the SFOTT key on the Finder with keys (Command/Apple)-i on the SFOTT Key and you’ll see the key is way much heavier than just 20,5mb.

      That being said, you should be able as many others to boot from the key. I’m not familiar with all hardwares, but many have turned to work.
      Please take a look at the troubleshooting page as it gives some hints.

      Also provide you hardware and I may be helpful to you, and will do my best to help in any case.
      Also many comments have good infos or tips.

      Most known issue is the USB key being powered off. Using internal partition/drive helped out most of the trouble for many.

  10. Avatar Andy says:


    I wonder if you could help me. First off, thank you for putting this together, it is very helpful. I have followed tried with both a USB drive and an 8GB partition. Neither will boot – they become a boot option when I hold the control key, but when I select them they pause for a minute,spin for a minute, and then load the current 10.5.8 OS instead of the install. I went through the steps manually to see if I could spot some errors. Step 6 when it actually does the edits adding my Mac is where it seems to have problems. Any ideas? I saw one similar that looked like a language issue but this has always been (and still is) set to English. See below, can I do any of this step manually? Thanks!

    Select a Step : 6
    Patch the OSInstall.mpkg
    [Patching board_id]
    moving to OSInstall.mpkg’s directory
    $PackagesDirBaseSystemPath /Volumes/OS X Base System/System/Installation/Packages
    /Applications/Utilities/Sfott/ line 1396: cd: /Volumes/OS X Base System/System/Installation/Packages: No such file or directory
    expanding package
    Could not open package for expansion: OSInstall.mpkg
    /Applications/Utilities/Sfott/ line 1401: cd: OSInstallmod: No such file or directory
    [|] patching package
    adding Mac-F42C89C8 to Supported Platform
    deleting tmp file
    repackaging OSInstall.mpkg
    Could not open directory: OSInstallmod
    OSInstall.mpkg patched

    Thank you for any help.

    • oem oem says:

      Hello Andy,

      Sorry for this century delay.
      IF you did not succeed since then, please let me know and I’ll try to help you out.

      you may have more than one dmg mounted

  11. Avatar Willem says:

    Great site! I was able to install 10.9.3 on my MacPro 1,1 ! Without any issues.
    But now there’s an OSX upgrade to 10.9.4: can I just install it? It’s running so smoothly…

    • oem oem says:

      Hi ! Willem,

      in case you did not yet upgrade the system, yes you can go on since you did the 10.9.2 re-patch step already.

  12. Avatar Michael says:

    10.9.4 recently came out. Is it safe to update, or will I need to repatch?

  13. Avatar David says:


    i am having a problem with my Mac Pro 1,1 not showing the external drive when i hold down the alt key on start up.

    I have used your program (I have to say nice work :)) everything looks as if it went well. I done it on the Mac Pro i want to put 10.9 onto. The program ends, the installer is on the USB drive, i have also tried an internal drive. When i restart it only picks up the main internal drive.

    Am i doing nothing wrong?


    • oem oem says:

      Hello David,

      Sorry for the delay, did you figure things out finally ?
      Is it MacPro1,1 or MacPro2,1 ?

  14. Avatar Mark says:

    Would love to download a copy of sfott

    need it badly,


  15. Avatar Kim Jensen says:

    I have an iMac Model iMac5,1 with Lion 10.7.5 can I use the SFOTT installer?
    In the instruction it says.
    1. Prerequities:
    1.1 Of Course an OS X Mavericks Installer in your App folder !
    How will I get the Mavericks Installer since I can’t buy it.

    • oem oem says:

      Hi Kim,

      Sorry for the delay was in holidays with… no internet.
      For that you’ll have to get MDE, Mavericks Downloads Enabler from rastafabi on MacRumors, or get it from a friend.

      I don’t have the url at hand, bu google will find you that with no trouble.
      MDE macrumors Rastafabi

  16. Avatar Michael says:

    Hi, this is awesome! I succesffuly upgraded Mac Pro 1,1 w/ nvidia GeForce 7300 GT however the Mac is seeing the card as having only “8 MB” of RAM (actually has 256). Any idea of solutions for this?

  17. Avatar Tom says:


    First of all. Thanks for the hard work on your website en software to run newer OS X versions on outdated hardware!

    Question: What is the current status of the Yosemite installation on Mac Pro 1.1? Is there a opportunity that we can run it like we run Mavericks now?

    Thanks in advance!


    • oem oem says:

      Hello Tom,

      I do have to work on it. But I surely will do and try.
      I’m look at a way to get a MacPro1,1 so I can test, with something else than my MacMini2,1 !

  18. Avatar Casper says:

    Thank you so much for your work. Just installed Mavericks 10.9.5 on my 2006 Mac Pro 1.1 and it runs perfectly fine.

  19. Avatar Nick says:

    Please can I have you e-mail as Im having problems running mavericks on a macpro 1.1


    • oem oem says:

      Hello Nick,

      you can have my email n top of the script window.
      Please note that I’ve just changed work and I’m very very busy. I’ll do my best to help but don’t expect quick answers.
      Your best shot to get answer would be MacRumors to start with.

      Now of course, I’ll read your emails and try to help you out if I can.

  20. Avatar Greg in Singapore says:

    Hi and thanks for your great work.
    I just spent the day trying to get Mavericks on my Mac Pro 1,1 (dual xeon 2.66, 12GB & 7300GT) by following various guides but had no success. I then googled a little harder and found your solution. It worked perfectly first time. Where do I donate ;-)
    Thanks again

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