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Enable TRIM in OS X 10.8.2 for IOAHCIBlockStorage version 2.3.1
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Enable TRIM on non-Apple SSDs in OS X 10.8.2 Mountain Lion. | |
WARNING: This is ONLY tested on 10.8.2 (IOAHCIBlockStorage version 2.3.1), and NOT earlier or later versions. | |
Check /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/version.plist | |
Technical note: The driver changed in 10.8.2 and similar perl commands that worked in earlier OS X versions did not work for me once I updated to 10.8.2. | |
Run the following commands in Terminal… | |
1. Backup the original driver | |
sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage-backup | |
2. Modify the driver | |
sudo perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00{1,20})[^\x00]{9}(\x00{1,20}\x54)|$1\x00\x00\x00\x00\x00\x00\x00\x00\x00$2|sg' /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage | |
3. 2 commands to clear the system caches to enable OS X to pick up the modified driver | |
sudo kextcache -system-prelinked-kernel | |
sudo kextcache -system-caches | |
sudo touch /System/Library/Extensions/ | |
4. Restart the Mac |
worked successfully on reboot... Trim Enabler app could not do anything, Leo's script fine as is ... OS X 10.8.3 (12D78) ... Macbook Pro mid June 2012, Samsung Pro 500GB.
Thanks leolimajr! Patch working for me too. 10.8.3 ( 12D78 ) MacMini Mid 2010 with Crucial M4 (CT128M4SSD1).
Thanks a lot leolimajr! It's working on 10.8.3, Early 2008 15" MBP & Intel 335 240GB.
confirmed working on 10.8.3 (12D78) with Crucial M4-CT256M4SSD2 (installed in CD-ROM port)
thanks!
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Thanks for the tip guest4562345, working for me as well now.