Mac 换上SSD硬盘

给Mac换上的SSD硬盘步骤

[前期准备]

支持SATA的移动硬盘盒
一套电子维修专用改锥

[第一步:安装克隆软件]

在mac上安装Carbon copy cloner软件（简称CCC,请支持正版）

[第二步:克隆磁盘]

将SSD装入移动硬盘,接到mac上
使用CCC将HDD的内容克隆到SSD,一切按提示操作,注意要创建恢复分区,否则SSD无法引导
等待30~60分钟
重启电脑,并按住option,选择从SSD启动,检查是否成功启动

[第三步:安装SSD]

将SSD装入mac,外面10颗螺丝,里面6颗螺丝,注意硬盘上有四颗内五角螺丝需要专用改锥
启动电脑,体验非一般的感觉吧

    all: TRIM SMS noatime reboot 
    
    checkroot:
        @echo -n checking privilege...
        @touch / &>/dev/null || ( echo error!;exit 1; )
        @echo ok!
    
    
    SMS: checkroot
        @echo -n disabling Sudden Motion Sensor...
        @pmset -a sms 0 || ( echo error!;exit 1; )
        @echo done!
    
    TRIM: checkroot
        @echo -n enabling TRIM...
        @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.bak
        @perl -pi -e 's|(\x52\x6F\x74\x61\x74\x69\x6F\x6E\x61\x6C\x00).{9}(\x00\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
        - @kextcache -system-prelinked-kernel &>/dev/null
        @kextcache -system-caches
        @echo done
    
    noatime: checkroot
        @echo -n disabling atime...
        @echo '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>com.noatime.root</string> <key>ProgramArguments</key> <array> <string>mount</string> <string>-uwo</string> <string>noatime</string> <string>/</string> </array> <key>RunAtLoad</key> <true/> </dict> </plist>' > /Library/LaunchDaemons/com.noatime.root.plist || ( echo error!;exit 1; )
        @echo done!
    
    reboot: checkroot
        @echo Finished !
        @echo CAUTION: we are going to reboot, press Ctrl-C to abort and you can reboot manually later.;sleep 5;
        @for i in `seq 10 1`; do clear; echo CAUTION: we are going to reboot in $$i seconds;sleep 1; done;
        @reboot

执行方式为:sudo make -f ssd_opt.makefile

####执行优化包括:

打开TRIM
禁用atime
禁用磁盘保护

####注意:

打开TRIM时,会误报segment fault,忽略即可
由于系统版本原因,TRIM可能打开失败,如何检测成功与否,以及失败了怎么办,请参见:http://www.cnbeta.com/articles/219752.htm

test markdown

learn c++ from levelDB