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Duncan wrote: |
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> Simon Stelling <blubb@g.o> posted 45866BE0.20905@g.o, |
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> excerpted below, on Mon, 18 Dec 2006 12:22:24 +0200: |
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> |
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>> Neil Bothwick wrote: |
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>>> What's wrong with the GRUB source package? I remember using grub-static |
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>>> when I first went 64 bit, but haven't used it for ages. The only 32 bit |
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>>> stuff I use here is firefox-bin and vmware. |
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>> No problem, but it's 32bit. |
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> |
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> Indeed... for backward compatibility, amd64/x86_64 boots in 32-bit mode. |
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> Actually, I /believe/ it boots in 16-bit real mode, just like an x86, then |
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> switches to 32-bit or 64-bit when the appropriate command is given, but |
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> AFAIK the difference between compiling 16-bit and 32-bit code is simply a |
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> few compile-time switches, so it uses a standard 32-bit toolchain. |
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You're referring to real mode(16 bit). the BIOS will load the |
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bootloader in real mode, the bootloader will switch to protected mode(32 |
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bit) and if you have the right kernel, it will switch to extended |
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mode(64 bit) |
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|
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- -- |
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======================================================= |
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Mike Doty kingtaco -at- gentoo.org |
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Gentoo/AMD64 Strategic Lead |
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Gentoo Council |
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Gentoo Developer Relations |
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Gentoo Recruitment Lead |
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Gentoo Infrastructure |
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GPG: E1A5 1C9C 93FE F430 C1D6 F2AF 806B A2E4 19F4 AE05 |
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======================================================= |
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-- |
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