#32 gptsync the other way, e.g. mbrsync ?

rEFIt 2.0 (Future)
open
nobody
2
2007-01-29
2006-12-22
Anonymous
No

As I'm way more confident with working using standard fdisk etc - I'm missing the possibility to actually sync the gpt partition tables using the mbr partition tables as default ...
Actually - do what gptsync does the other way around.

Discussion

  • Christoph Pfisterer

    • priority: 5 --> 2
     
  • Christoph Pfisterer

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    user_id=51640
    Originator: NO

    This is very unlikely to happen any time soon, for various reasons:
    - Writing a correct GPT table is much harder than writing a working MBR table.
    - The GPT table contains a lot more information than the MBR table.
    - While there is always space to write a MBR table on a pure-GPT disk, the reverse is not true.
    - Having two tools that sync in opposite ways will cause many people to break their disks, generating a support nightmare.

     
  • Christoph Pfisterer

    • labels: --> Partitioning (gptsync)
    • milestone: --> rEFIt 2.0 (Future)
     
  • Nobody/Anonymous

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    i would really have needed this feature. i do not know how i made it, but the gpt was wrong in partition type, which caused some problems for me, for example in using the boot camp partition also with parallels. but actually it is to late for me now. i had some hollydays and reinstalled everything. :-/

     
  • Nobody/Anonymous

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    I also had the problem with an GPT partition type of "EFI" although the MBR type was set correctly to "NTFS". After searching a bit I found this site
    http://0xfeedbeef.com/appletv/usbboot
    which helped me a lot. It describes how to manually change a GPT partition entry (including the partition type) by deleting the old one and adding a new entry with changed type at place of the old one. All is done with the "gpt" shell command.
    The procedure will only work when run from the Mac OS Install Disk since you need to umount all volumes on the hard disk you want to alter.
    WARNING: Be careful to use exactly the same sector counts for the new entry, otherwise you could destroy some important data ;)

    Good luck anybody, it worked fine for me

     
  • Nobody/Anonymous

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    thanks for comments.

    Does this mean that we can't triple boot without reinstall MOS from scratch on the entire disk first ?

     

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