13" Macbook is freezing during re-installation.

Question

Need of a little help here.  My book is freezing on the second disk during installation.  I am am re-installing due an issue on boot up trying to read the file System\Library\Caches\com.apple.kext.caches\Startup\Extensions.mkext.  I get a Read error0x7.  The disk utility from the start up reports that the disk appears to be healthy and all permsions are correct.  Any one have any ideas what could be goign on?  Can anyone tell me of any diagnostics I can run during the installation to see where the hang is? 

Answer 1

The next time you have the problem, note the exact time: hour, minute, second.
If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Scroll back in the log to the time you noted above. Select any messages timestamped from then until the end of the episode. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.