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On Wed, May 12, 2010 at 3:00 PM, Mick <michaelkintzios@×××××.com> wrote: |
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> On Monday 10 May 2010 17:01:02 Paul Hartman wrote: |
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>> On Sat, May 8, 2010 at 9:16 AM, claude angéloz |
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>> |
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>> <claude.angeloz@×××××××.ch> wrote: |
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>> > Hello, |
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>> > |
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>> > I installed a gentoo on a very recent system (efi support) . AT the |
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>> > reception of the laptop it was a disk label msdos, with a boot |
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>> > partition w** installer ... I changed that against a GPt disk label. I |
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>> > can install without problem the gentoo , but now it doenst boot. |
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>> > |
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>> > I read some docs about gpt,mbr,boot principles and tried some tools |
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>> > |
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>> > - install the grub2 masked package and grub-install. |
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>> > |
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>> > - a special partion bios_grub as 1st bootable partition. |
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>> > but actually no succesful... |
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>> > but in the parted i did not see this "bios_grub" as flag... |
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>> > |
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>> > I found some tips from the web , but i guess that was only valid for a |
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>> > macintel system, not a normal pc with a disk labeled gpt and an efi |
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>> > support. |
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>> > |
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>> > I know that it is not required an efi partiton to boot the os with |
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>> > pc/bios and gpt disk. Or is it false ? |
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>> > |
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>> > If anybody has an other idea. Or I must abandon the gpt disk label ? |
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>> > Is there an equivalent refitr in OS x86 ? |
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>> |
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>> I'm using GPT partitions and with the grub-0.97-r9 in Gentoo it has |
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>> patches to boot from GPT disks. I just did normal grub install as |
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>> usual and everything seems to work. I'm not using the partition label, |
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>> though, but only "root (hd0,0)" |
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> |
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> Interesting. Does grub install its bootloader into the MBR, or in a GPT boot |
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> partition? I am not at all familiar with this new way of booting systems. |
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|
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I think basically GPT is a replacement for MBR, everything basically |
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works the same way otherwise. GPT has features like redunancy, removes |
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limits of MBR (no primary/logical designation anymore, no 2TB limit, |
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etc). I think it has a somewhat MBR-compatible layout in the first |
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sector so non-GPT-aware things can still partially recognize it. |
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