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Thread: "Goodbye BIOS" As I Know It.

  1. #11
    Join Date
    Apr 2009
    J'Habite En Angleterre

    Default Re: "Goodbye BIOS" As I Know It.

    No, Windows 7 always creates that 100MB system partition. It has nothing to do with how large your main partition is. The 100MB system partition is used not only to store the bootloader/bootfiles, but also used for the BitLocker drive encryption.

    The only way to stop Win 7 creating the 100MB system partition is to create a single partition yourself using diskpart or a similar program of your choosing. Windows will then use the main partition for the boot files.

    Note that if creating your own partition manually to avoid wasting space and are using a SSD, you need to correctly align the partition to the SSD's erase blocks to avoid clusters crossing erase block boundaries.With the 100MB partition in place, Win 7 has correctly aligned both it and all subsequent partitions correctly. The 100MB partition is aligned to 1024k which is an acceptable value for any SSD with 512K erase blocks.
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  2. #12
    Join Date
    Apr 2009

    Default Re: "Goodbye BIOS" As I Know It.

    Thanks mv2devnull for the link. GUID Partition Table - Wikipedia, the free encyclopedia
    I like this. Interesting especially the OS support of GPT table. If FREEBSD and Linux (even X86) support "Boot from GPT on PC/BIOS" Microsoft will need to be finding a way soon.
    It is much more informative than what I "red" on it back in March or even June 2009. It's hard to believe with all the Huge TB hard drives. As long as we have had them. The only Windows option is to have a seperate Partition with a windows OS on it. Then Windows disk manage that RAID5 of TB's to a GPT for storage. Seperate from the OS. Although I believe it works the majority of the time. I can see where sometimes I would have search issues. As in large programs that need to load on C:/ I would'nt always know which ones they would be either, and the programs that load part on a RAID5 and the other part on the Windows disk. Good luck getting them completely uninstalled. Even with a good uninstaller. I only use about half of the space on my hard drives anyway. They seem to be easier & faster to sweep and defragment this way.
    Using GPT Drives
    I believe a cure for it is not to far in the future.
    Last edited by artdrivers; 01-09-2010 at 12:14 AM.
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  3. #13

    Default Re: "Goodbye BIOS" As I Know It.

    I doubt MS makes a move. They probably rather see EFI-systems to show up than augment ntloader. Every OS booting from GPT without EFI would clearly undermine the efforts to replace BIOS with EFI. But it is up to the companies to either push the EFI or bury it.

    It is quite standard and recommended practice to have a small disk volume for the OS and separate volume(s) for data (and backup). For example the SSD for OS. Quick to load. No application is really big. It is the data that can consume petabytes.

    Some time ago I saw Psycho101 mention "alignment" and now My brain hurts. Reading around, I found that partition alignment is not just for SSD, but for RAID systems, for USB pendrives, and for latest generation HDD (WD EARS) too. Thanks!

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