On Tuesday 19 December 2006 18:56, "W.Kenworthy" <[EMAIL PROTECTED]> wrote about 'Re: [gentoo-user] CFLAGS Core2Duo': > Is it still the case thats its impossible to upgrade a 32bit gentoo on > athlon64 to 64 bit - requires a full reinstall?
Reinstall is the only officially supported manner. However, with a little bit of work, it *is* possible to upgrade. The 50km view is: 1. Build cross toolchain -- portage may not make this easy 2. Use said toolchain to build 64-bit kernel with 32-bit support. 2a.If you need any out-of-tree modules before step 6, rebuild them with the cross compiler -- portage *will* *not* make this easy. 3. Reboot into new kernel. 4. Change CHOST in make.conf 5. Update toolchain configuration/symlinks to treat what was a cross toolchain as the native toolchain 6. Rebuild remaining out-of-tree modules. At this point, only your kernel and modules are 64-bit, but each time your update/reinstall a package it will become 64-bit. For best results, it'd probably a good time to rebuild the toolchain again. (Right now, the tollchain is 32-bit code that produces 64-bit code.) There's also some sticky issues with lib vs. lib32 vs. lib64 directories/symlinks and your ldconfig and you may need a few runs of fix_libtool_files.sh and/or revdep-rebuild as required. It's possible, but not really fun and very fragile, which is why there's no support for it. If you want to try, I'm willing to help, but I can't guarantee anything, and many on the list will be unwilling to help. -- "If there's one thing we've established over the years, it's that the vast majority of our users don't have the slightest clue what's best for them in terms of package stability." -- Gentoo Developer Ciaran McCreesh
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