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On Tuesday 16 November 2010 10:33:34 Helmut Jarausch wrote: |
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> Hi, |
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> |
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> I have an up-to-date ~amd64 GenToo installation with has been |
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> built on a current AMD64 (Phenom II) machine where I used |
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> -mtune=native in etc/make.conf since I didn't think of the case |
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> that I would need to port this system to a somewhat older Opteron |
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> based machine (still AMD64) |
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> |
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> But after cloning the system, some fundamental utilities die of |
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> an illegal instruction. So I have to rebuild GenToo nearly |
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> from scratch. emerge -e world doesn't work. |
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> |
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> So, what is a reasonably fast method? |
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> |
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> I'd like to keep |
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> /etc |
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> /usr/portage except /usr/portage/packages |
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> /var/lib/portage |
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> |
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> Is there a fast method e.g. by using the Gentoo based |
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> SystemRescueCD to reinstall a very basic system, such that |
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> I can do emerge -e world. |
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> It looks as if the gcc tool-chain is intact since I could |
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> compile a kernel without any problem. |
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> But some utilities, e.g. find, die of an illegal instruction. |
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> |
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> Many thanks for any hints saving me a couple of hours work, |
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> |
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> Helmut. |
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|
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Ok, the following is NOT tested, but might work: |
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1) boot with a systemrescuecd |
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2) backup the sytem (I did not test this) |
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3) create a chroot-space for a new install (don't worry, not doing full |
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install) |
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4) unpack a stage3 |
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5) chroot into this |
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6) build packages from this stage3 |
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7) chroot into the install to be fixed |
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8) emerge these packages onto your current system (this should contain all you |
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need for "system") |
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9) emerge -e world |
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|
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If there is anyone who has actually been in this situation, please feel free |
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to comment on this. |
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Also, I'm not certain what will happen to /etc, but the etc-update script can |
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be told to keep existing configurations. |
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|
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-- |
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Joost |
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