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Re: looking for help

From: Ilya M
Subject: Re: looking for help
Date: Thu, 21 Mar 2013 20:39:47 +0400

Chris, thank you for your reply and support, especially considering the fact that this mailing list is not intended for this purposes, I really appreciate this.
Well, I am 99% sure that GUID Partition Table was specified in Disk Utility during installation because I had used this guide for MacOS installation [http://tonymacx86.blogspot.ru/2010/04/iboot-multibeast-install-mac-os-x-on.html] which states that GPT should be specified in the Disk Utility (Step 2, paragraph 9).
MacOS disk's capacity is only 640GB. For Windows boot I use a separate physical HDD. 
Looks like I was mistaken in the previous letter when mentioned APT, sorry for that.
Hope aforementioned provided information will help.

Thanks in advance,

2013/3/21 Chris Murphy <address@hidden>

On Mar 20, 2013, at 10:24 PM, Ilya M <address@hidden> wrote:

> Testdisk sees both hdd partitions on that disk but cant write the partition table ("function write_part_mac not implemented").


> Unfortunatley, I dont have a working MacOS to try a workaround using pdisk package  because if I am not mistaken pdisk is avialable only on MacOS.

write_part_mac is probably APM, and pdisk is definitely APM. This hasn't been used for OS X boot disks since PowerPC/OpenFirmware. While the Apple EFI firmware can read and boot from APM, MBR, and GPT schemes, in practice it's only GPT. For a Hakintosh it depends on whether you're using UEFI or BIOS firmware and the size of the drive. If UEFI or a disk larger than 2.2TB, use GPT. If BIOS,  use MBR. I say that because you seem to be also using or trying to use Windows on the same computer/drive? Windows on BIOS hardware will only boot from an MBR disk. Windows on UEFI hardware will only boot from a GPT disk. OS X will boot from either.

> I'd like to remind that the disk which partition table I want to recover had a MacOS installed (apple partition table).

Again this type of partition scheme hasn't been used in a long time, unless this is somehow specific to Hackintoshes.

Chris Murphy

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