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On Saturday 08 May 2010 15:16:36 claude angéloz 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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> Thanks |
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> Best regards |
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> Claude |
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|
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I do not have either an efi machine or a gpt disk to know for sure, but |
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perhaps the following two applications may be of help in creating a EFI |
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binary: |
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|
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|
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* sys-boot/mbr-gpt |
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Available versions: |
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~ 0.0.1 "~x86 ~amd64" |
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Homepage: http://aybabtu.com/mbr-gpt/ |
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Description: An MBR that can handle BIOS-based boot on GPT. |
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|
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* sys-boot/gnu-efi |
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Available versions: |
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* 3.0a-r1 "ia64 x86" |
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~ 3.0e "~ia64 ~x86 ~amd64" |
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~ 3.0g "~amd64 ia64 ~x86" |
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~ 3.0i "~amd64 ~ia64 ~x86" |
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Homepage: http://developer.intel.com/technology/efi |
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Description: Library for build EFI Applications |
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|
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Instructions for installing, booting using EFI systems are here: |
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|
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http://www.gentoo.org/doc/en/handbook/handbook- |
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ia64.xml?style=printable&part=1&chap=2 |
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|
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HTH |
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-- |
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Regards, |
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Mick |
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