{"id":748,"date":"2009-10-29T22:15:04","date_gmt":"2009-10-30T02:15:04","guid":{"rendered":"http:\/\/vitamin-max.com\/word\/?p=748"},"modified":"2009-10-29T22:15:43","modified_gmt":"2009-10-30T02:15:43","slug":"how-to-boot-macbook52-into-64-bit-kernel-in-snow-leopard","status":"publish","type":"post","link":"https:\/\/vitamin-max.com\/word\/2009\/10\/how-to-boot-macbook52-into-64-bit-kernel-in-snow-leopard\/","title":{"rendered":"How to Boot Macbook5,2 into 64-bit kernel in Snow Leopard"},"content":{"rendered":"

1. Download this boot.efi<\/a> file. This file has been patched to allow basically all capable-but-restricted-by-Apple Macbooks to boot into 64-bit kernel in Snow Leopard. In my case, this enables my Macbook5,2 to do so.<\/p>\n

2. From where you saved this file, in terminal, do this:
\nsudo cp \/System\/Library\/CoreServices\/boot.efi ~\/Desktop
\n(this step saves a copy of your original boot.efi to your desktop; unfortunately I lost mine!)<\/em><\/p>\n

sudo rm \/System\/Library\/CoreServices\/boot.efi
\nNOTE! I did not test this and this is irreversible. Please make sure you made a copy of this file. If you cannot delete it this way, do it in Finder.<\/em><\/p>\n

sudo cp boot.efi \/System\/Library\/CoreServices\/
\nCopy the patched file to where it should be.<\/em><\/p>\n

3. cd \/System\/Library\/CoreServices\/<\/p>\n

4. sudo chown root:wheel boot.efi
\nThis changes the ownership of this file.<\/em><\/p>\n

5. sudo chflags uchg boot.efi
\nThis locks the file.<\/em><\/p>\n

6. sudo bless –folder \/System\/Library\/CoreServices\/ –file \/System\/Library\/CoreServices\/boot.efi<\/p>\n

7. One last thing is to add arch=x86_64 to file \/Library\/Preferences\/SystemConfiguration\/com.apple.Boot.plist to Kernels Flags section
\nFor example:
\nKernel Flags<\/key>
\narch=x86_64<\/string><\/p>\n

You should be done by now. You may still need to hold “6” and “4” keys when booting. But it should work.<\/p>\n

How to hack the boot.efi file comes from here<\/a>. Basically Apple restricted all non-pro machines from doing so with this file. So that’s why we need to change it. What changed was:<\/p>\n

\nFrom:
\n0x266E0:
\n38 47 01 00 00 00 00 00 00 00 00 00 00 00 00 00<\/p>\n

to:
\n0x266E0:
\n38 47 01 00 00 00 00 00 04<\/font> 00 00 00 00 00 00 00\n<\/p><\/blockquote>\n

Additional resources from here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. Download this boot.efi file. This file has been patched to allow basically all capable-but-restricted-by-Apple Macbooks to boot into 64-bit kernel in Snow Leopard. In my case, this enables my Macbook5,2 to do so. 2. From where you saved this file, in terminal, do this: sudo cp \/System\/Library\/CoreServices\/boot.efi ~\/Desktop (this step saves a copy of… Continue reading How to Boot Macbook5,2 into 64-bit kernel in Snow Leopard<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[1],"tags":[179,178,67,180],"class_list":["post-748","post","type-post","status-publish","format-standard","hentry","category--general","tag-64-bit","tag-hack","tag-mac-os-x","tag-macbook","entry"],"_links":{"self":[{"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/posts\/748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/comments?post=748"}],"version-history":[{"count":4,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/posts\/748\/revisions"}],"predecessor-version":[{"id":753,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/posts\/748\/revisions\/753"}],"wp:attachment":[{"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/media?parent=748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/categories?post=748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vitamin-max.com\/word\/wp-json\/wp\/v2\/tags?post=748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}