我一直试图在我的MacBook7,1上安装安全更新2015-006。试过AppStore 3x，不行。下载了独立安装程序并试用了这个5x。每次都有相同的结果。一直到95 +％，直到它只是清理然后它只是落在：
安装程序遇到导致安装失败的错误。请与软件制造商联系以获取帮助。
在系统日志中：
Sep 8 18:30:20 MacBookPro71.local Installer[1022]: CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces.
Sep 8 18:30:20 MacBookPro71.local Installer[1022]: The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Sep 8 18:30:22 MacBookPro71.local com.apple.kextd[12]: /: kextcache has had enough tries; not launching any more
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我已经尝试删除过去曾有效的/ Library / Updates和/ var / folders的内容，但这次没有任何区别。
有人吗？
TIA！