Tag Archive for 'mac'

我的習慣一向是等到新的os穩定之後才會更新，畢竟這是工作電腦，我只想花時間解決我的問題而不是電腦本身的。

我的mbp（2011 early）升級OSX Lion 10.7.2時就發現，raid 0 的系統碟將無法使用一些功能：

http://support.apple.com/kb/HT4649?viewlocale=zh_TW

其中filevault我用不到，Recovery HD可以用外接磁碟的方式解決：

http://support.apple.com/kb/DL1433

不過我安裝完才發現，disk ulitility無法修復磁碟權限，就算是用外接的Recovery HD或完整安裝的外接疵碟，都無法用磁碟工具程式修復/驗證raid 0的磁碟權限。這問題大條啊～難道要重灌回10.6？

還好可以用terminal的方式解決：
打開terminal輸入 『sudo diskutil repairPermissions /』

其他指令如下：

As stated in the previous posts you can type the following in a terminal:

- to verify permissions:

diskutil verifyPermissions /

- to repair permissions:

sudo diskutil repairPermissions /

- to check disk:

diskutil verifyVolume

- to repair disk, first boot from another volume (external drive, USB stick, DVD, … ), then display a list of all your mounted volumes in a terminal type:

diskutil list

- search for the identifier of the disk you want to repair in this list (could be disk1 but depends on how many disk you have attached to the server) and type:

sudo diskutil repairVolume disk_your_number_here //e.g. disk1

- to learn all other options available with diskutil:

man diskutil

這裡有詳細介紹