Which disk layout system: rdb, mbr, ddm
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    Zylesea
    Posts: 2057 from 2003/6/4
    DHL brought me an external firewire/usb hdd today (nice of them, isn't it...). I want to use it for the following three purposes:
    - Install OS X on it to use it as additional OS on my mini (wanna give Garageband a try)
    - Back up my MorphOS Mac mini hdd
    - have a convenient exchange medium to share data between MorphOS, OS X, linux and Windows.

    For that I want to use three partitions,
    - one hfs+ (safe from random harm outside OS X) holding OS X related stuff
    - one sfs partition to make a 1:1 mirror backup from the mini and keep it safe from harm (read: no sudden write accesses) outside MorphOS
    - one partition with FAT32, being everyone's cheap bitch.

    I think that's a good approach, but which partition layout system should such a setup use: DDM (as used by Mac), MBR (as used by Windows) or RDB (as used by MorphOS). Since I want the hdd to be abble to launch OS X I think DDM would be the way to go. But does it matter much, can Windows cope with a DDM or RDB disk?

    And what about the padding partitions that OS X expects. Does it expect these paddings between all partitions or only neighboring to hfs(+) partitions? Do they need any special parameter or does any 128MB sized partition directly neighboring the actual partitions work? And does anyone know why they are actually needed by OS X? Would be good to know when manipulating partitions with MorphOS' partitition tool.

    [ Edited by Zylesea on 2010/1/30 0:11 ]
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  • »29.01.10 - 22:04
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  • MorphOS Developer
    jacadcaps
    Posts: 3108 from 2003/3/5
    From: Canada
    If you want the partition to be able to boot OSX AND be readable on Windows then I'm not really sure what your options are... To have OSX boot on Mini the disk has to be using the Apple partition table. Windows won't obviously read that ootb (maybe it would with Bootcamp drivers installed? you'd have to check).
  • »30.01.10 - 07:56
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