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Apparently, though unproven, at 11:33 on Tuesday 16 November 2010, Helmut |
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Jarausch did opine thusly: |
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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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Backup your portage related data and re-install. |
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Seriously - you know you are looking at doing emerge -e world and will need to |
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fiddle stuff to make it complete successfully. |
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If you just reinstall, put your old world file and /etc/portage/ back then let |
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portage have at it, that is exactly what will happen. You'll have 30-45 |
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minutes of setup work and a high level of confidence it will complete |
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successfully. |
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Trying to fix the existing installation is potentially many hours of poking |
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around to see what changed, potentially several goes at running emerge -e |
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world, hair pulling, and you will probably give up and just reinstall anyway. |
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I'm assuming you are looking for the easiest, fastest route to success with |
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the least pain, and that your days of poking into portage to see how things |
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work for fun are long over. |
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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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alan dot mckinnon at gmail dot com |
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