MAC TRIM

更新後出現禁止符號修復
硬體MAC MINI 2012
自改SSD（開啟trim）加原硬碟
沒做fusion drive
日前忘了關TRIM後更新
開機後就出現了禁止符號

進入恢復模式，在磁碟工具看到兩顆硬碟被做成fusion drive
先關掉trim，進終端機後依序輸入
    1.    nvram -d boot-args
    2.    cd "/Volumes/Macintosh HD"
    3.    rm -rf System/Library/Extensions/IOAHCIFamily.kext
    4.    cp -r /System/Library/Extensions/IOAHCIFamily.kext System/Library/Extensions/IOAHCIFamily.kext
    5.    chown -R root:wheel System/Library/Extensions
    6.    sudo chmod -R 755 System/Library/Extensions
    7.    touch System/Library/Extensions
    8.    kextcache -prelinked-kernel System/Library/Caches/com.apple.kext.caches/Startup/kernelcache -K System/Library/Kernels/kernel System/Library/Extensions

重開機後能進入系統
https://www.ptt.cc/bbs/MAC/M.1359532101.A.49E.html
把fusion drive解開後重裝OS X
在用time mechine 把iTunes跟其他程式拉回來