Re: Disk partitioning questions
Re: Disk partitioning questions
- Subject: Re: Disk partitioning questions
- From: Joe van Tunen <email@hidden>
- Date: Thu, 13 Dec 2007 14:54:11 -0800
- Thread-topic: Disk partitioning questions
> From: Paul Wasmund <email@hidden>
> Date: Thu, 13 Dec 2007 10:43:13 -0600
>
> I am trying to install an IOMedia filter kext on boot partitions and
> this requires a helper partition be set up at boot partition index +
> 1. I have scripts and code that let me do this even if other hfs+
> partitions exist on the drive but not if the drive also has a
> BootCamp partition on it. Is it possible to add a helper partition to
> the Mac boot partition on a drive that also has a BootCamp partition
> on it and if so are there any tools that would let me do this from a
> shell script?
>
> Paul Wasmund
diskutil and fdisk didn't help? If the problem really is that the disk is a
BootCamp disk (to see what's going on, check the gpt source code at
<http://www.opensource.apple.com/darwinsource/>), then what if you use fdisk
to make the disk appear to not be a BootCamp disk, then use diskutil or gpt
to add your helper partition, then use fdisk to redo the BootCamp
modification?
GUID partition disks have a special MBR (protective MBR). BootCamp modifies
that MBR for Windows.
Do your scripts and code work for disks that are not modified by BootCamp
but have an HFS+ and NTFS partition? Compare the MBR of such a disk with
that of a BootCamp disk with similar partitions.
If you get everything working, note that BootCamp Assistant will not run if
it finds more partitions than it originally created. If that is the case,
the user will have to perform future BootCamp updates manually (the driver
disk used to be a disk image inside the BootCamp Assistant application
bundle but now it is part of the Leopard install DVD).
http://developer.apple.com/technotes/tn2006/tn2166.html
http://refit.sourceforge.net/myths/
http://wiki.onmac.net/index.php/Triple_Boot_via_BootCamp
http://en.wikipedia.org/wiki/GUID_Partition_Table
http://en.wikipedia.org/wiki/Master_Boot_Record
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