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On Saturday 26 December 2009 14:05:52 Francisco Ares wrote: |
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> On Fri, Dec 25, 2009 at 8:41 AM, Alan McKinnon |
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<alan.mckinnon@×××××.com>wrote: |
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> > On Thursday 24 December 2009 16:33:26 Carlos Moyano Cubillos wrote: |
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> > > Dear friends, |
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> > > |
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> > > I have a gentoo system running 32bit .. and I have a 30GB partition |
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> > > available on which I would like to install a 64bit Gentoo to test for |
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> > > 64bit extensions processor supports . |
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> > > |
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> > > |
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> > > someone could help me and tell me how to proceed with this |
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> > > installation from my running system without having to reboot with a |
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> > > livecd. |
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> > |
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> > You have to reboot with a LiveCD. |
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> > |
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> > Your running 32 bit kernel does not support 64 bit instructions and there |
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> > is |
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> > no magic voodoo to make it possible. The CPU might understand 64 bit |
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> > instructions but the running kernel that drives it definitely does not. |
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> > |
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> > -- |
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> > alan dot mckinnon at gmail dot com |
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> |
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> I don't know for sure, but I would guess that if you don't try to use any |
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> file from the new 64 bit partition, that would be fine. |
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> |
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> AFAIK you can install a 64 bit system using the 32 bit livecd. |
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> |
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> Just a guess, though |
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Think it through. The OP wants to install a 64 bit OS using a running 32 bit |
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system. Now, this can work with a pure binary distro - you are just copying |
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files after all with those installs. |
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But this is Gentoo, and he'll have to build something sometime. The absolute |
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minimum is to build a 64 kernel as that is not supplied in binary form. How |
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will a running 32 bit system generate 64 bit code? |
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At some point he's going to have to reboot, even if just to use the new OS. |
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But before he uses it for real, he'll have to rebuild most of it. That will |
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take a good few hours as opposed to the 20 minutes or so to do the original |
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install. What has he saved? Very little - 20 minutes at most. |
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Far easier to just reboot into a LiveCD and install from there. No sense in |
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spending large numbers of dollars to save small numbers of pennies |
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-- |
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alan dot mckinnon at gmail dot com |
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