JrCs Posted July 31, 2009 Share Posted July 31, 2009 Hi, here's an OSX port and enhancement i made to help creating hybrid MBR partitions on GPT drive. Code came from project rEFit: http://refit.sourceforge.net/ The package below contain the gptsync command line tool for Mac OSX Leopard. Source code is available here: https://github.com/JrCs/gptsync You can download the package here: Edit 31/12/12 version 0.3: gptsync-0.3.pkg Old Versions: Edit 02/08/09 version 0.2: gptsync-0.2.pkg.zip JrCs 4 Link to comment Share on other sites More sharing options...
tdtran1025 Posted July 31, 2009 Share Posted July 31, 2009 Can u explain further. Link to comment Share on other sites More sharing options...
=SABER= Posted August 1, 2009 Share Posted August 1, 2009 http://netkas.org/?p=39 phnix had compiled 2 years ago. Link to comment Share on other sites More sharing options...
JrCs Posted August 1, 2009 Author Share Posted August 1, 2009 http://netkas.org/?p=39 phnix had compiled 2 years ago. Here it's an enhanced version. With selection of partition to add, to make active, etc.... Link to comment Share on other sites More sharing options...
Ed_Saxman Posted August 19, 2009 Share Posted August 19, 2009 Your app was very useful for me!! At least I have an GPT/MBR Triple Boot with OS X, win7 and Ubuntu 9. Thank you!! Link to comment Share on other sites More sharing options...
saivert Posted October 16, 2009 Share Posted October 16, 2009 So you can't boot Windows from a GPT partition then? Windows 7 supports GPT. Link to comment Share on other sites More sharing options...
srs5694 Posted October 16, 2009 Share Posted October 16, 2009 Windows 7 does support reading and writing GPT disks, but not booting from them, unless the computer uses EFI for firmware, rather than a BIOS. (I've corresponded with somebody who's used a post-BIOS EFI implementation to work around this limitation, but that's currently an awkward solution that doesn't work on all computers -- I couldn't get it to work myself, for instance.) So in a dual-boot environment with Windows and a need or desire to use GPT, you must have either multiple disks (at least one MBR for Windows to boot and at least one GPT) or a hybrid MBR configuration. Link to comment Share on other sites More sharing options...
caribouuu Posted December 18, 2009 Share Posted December 18, 2009 Whoa. I just ran the installer and couldn't find anything having been installed. I hope this isn't a trojan. Where are the files it installed? Link to comment Share on other sites More sharing options...
Trauma! Posted December 18, 2009 Share Posted December 18, 2009 This is a command line tool caribouu... It's absolutly not a trojan! Open your terminal and type: which gpsync Link to comment Share on other sites More sharing options...
Suzuka Posted December 18, 2009 Share Posted December 18, 2009 Windows 7 does support reading and writing GPT disks, but not booting from them, unless the computer uses EFI for firmware, rather than a BIOS. (I've corresponded with somebody who's used a post-BIOS EFI implementation to work around this limitation, but that's currently an awkward solution that doesn't work on all computers -- I couldn't get it to work myself, for instance.) So in a dual-boot environment with Windows and a need or desire to use GPT, you must have either multiple disks (at least one MBR for Windows to boot and at least one GPT) or a hybrid MBR configuration. Er...then how did I install Windows 7 on my Hackintosh? Link to comment Share on other sites More sharing options...
srs5694 Posted December 19, 2009 Share Posted December 19, 2009 Er...then how did I install Windows 7 on my Hackintosh? There are several possibilities: Your computer uses MBR rather than GPT Your computer uses a hybrid MBR (GPT+MBR) rather than a "pure" GPT Your computer has EFI-enabled firmware Possibly something else I'm forgetting Without more details on your configuration, I can't narrow it down further than that; however, #2 seems to be quite common; many people run hybrid configurations and aren't even aware of it. Link to comment Share on other sites More sharing options...
sachink70 Posted December 20, 2009 Share Posted December 20, 2009 how to use this zip pkg please explain what to type at terminal?? This is a command line tool caribouu... It's absolutly not a trojan! Open your terminal and type: which gpsync Link to comment Share on other sites More sharing options...
gcc1 Posted December 29, 2009 Share Posted December 29, 2009 As a noob, especially when it comes to using command line, could someone provide a brief walk through on how to use this tool, (planning to use it for dual boot purposes). Thanks. Link to comment Share on other sites More sharing options...
itry2hide Posted January 4, 2010 Share Posted January 4, 2010 looks like the command line installs as gptsync. Now if I could figure out the switches. Link to comment Share on other sites More sharing options...
McDarling Posted June 21, 2010 Share Posted June 21, 2010 Just tried this. Attempting Linux install now. Link to comment Share on other sites More sharing options...
dabora Posted November 11, 2010 Share Posted November 11, 2010 Das sieht echt bescheuert aus und es muss doch eine Möglichkeit geben, welche den größten Wert nimmt und das AR entsprechend ------------------------------ The ccsp and cissp is worldwide accredited certification that validates in ccna security and ccna voice with the professional’s knowledge and skills of IT system security. Link to comment Share on other sites More sharing options...
xbox361 Posted November 16, 2010 Share Posted November 16, 2010 Fortunately, boot can be easily unset the same way you set it (using parted). But, when you do so, at least using the version of parted that comes with Ubuntu Gutsy, the msftres flag is set, and parted won't let you unset it no matter how many times you try. The main problem this caused for me was that the partitions marked as msftres would no longer be mounted automatically by OS X, so they didn't show up in the Finder, and they were grayed out in Disk Utility. diskutil list indeed showed their type as "Microsoft Reserved Data" or something to that effect. (I don't remember exactly, and I didn't feel like changing the type back just to do testing for this hint.) Link to comment Share on other sites More sharing options...
BuXb Posted November 21, 2010 Share Posted November 21, 2010 Usage: gptsync [OPTION]... DEVICE [PARTITION[+/-[TYPE]]] ... gptsync fill hybrid MBR of GPT drive DEVICE. Specified partitions will be a part of hybrid MBR. Up to 3 partitions are allowed. + means that partition is active (only one partition can be active). TYPE is an MBR hexadecimal type (use -t option to list recognized types). Valid options: -e, --empty create an MBR containing only the EFI Protective partition -n, --nofill don't try to protect unused partition -t, --types list the MBR recognized type codes -h, --help display this message and exit -V, --version print version information and exit examples: sudo gptsync /dev/disk1 1 2+af sudo gptsync /dev/disk1 2+ Link to comment Share on other sites More sharing options...
asdfeas Posted November 22, 2010 Share Posted November 22, 2010 I just ran the installer and couldn't find anything having been installed,too. and don’t know why.anyone knows? I’ll be appreciate for posting me.thanks. Link to comment Share on other sites More sharing options...
BuXb Posted November 24, 2010 Share Posted November 24, 2010 asdfeas, this is a COMMAND LINE utility = you have to run the commands (see given examples) in TERMINAL ...... Apart from that, I would love to get Grub4DOS going on a GPT partitioned drive - anybody know how to? 1 Link to comment Share on other sites More sharing options...
ccutrer Posted January 20, 2012 Share Posted January 20, 2012 Are the modifications you made for this available? Could you maybe add support to recognize a CoreStorage (FileVault 2) partition in Lion? Link to comment Share on other sites More sharing options...
JrCs Posted December 31, 2012 Author Share Posted December 31, 2012 Are the modifications you made for this available? Could you maybe add support to recognize a CoreStorage (FileVault 2) partition in Lion? Done in version 0.3 (look at the first post) 3 Link to comment Share on other sites More sharing options...
bigbor Posted December 4, 2013 Share Posted December 4, 2013 I have 3 partitions on GPT and 1 virtual MBR partition on macbook pro. MBR used by Windows. But the problem is that Windows can't see the GPT partitions. Not sure if gptsync can help me in such situation? More details here http://www.insanelymac.com/forum/topic/294367-macbook-pro-bootcamp-windows-cant-see-gpt-partitions/ Link to comment Share on other sites More sharing options...
BuXb Posted December 4, 2013 Share Posted December 4, 2013 I have 3 partitions on GPT and 1 virtual MBR partition on macbook pro. MBR used by Windows. But the problem is that Windows can't see the GPT partitions. Not sure if gptsync can help me in such situation? More details here http://www.insanelymac.com/forum/topic/294367-macbook-pro-bootcamp-windows-cant-see-gpt-partitions/ that's what it's about, or at least how this works.. An OS on a synced MBR partition on a hybrid GPT/ MBR can ONLY see synced MBR partitions, NEVER any of the GPT partitions. Just include all GPT partitions into the MBR you want Windows to see via gptsync, that's it. So the answer is yes, gptsync will help you. Link to comment Share on other sites More sharing options...
el lissitzky Posted January 2, 2016 Share Posted January 2, 2016 Is this thing still alive? I'm trying to see if I can use gtpsync to repair a broken GPT that won't boot my win 7. Link to comment Share on other sites More sharing options...
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