Building boot caches” error when changing startup disk

[Kenc1103]

I can't select my startup disk after copying my Lion install on a RAID0 stripe set, it keeps saying "building boot caches on boot helper partition failed". It takes a long time to boot up because of this problem. I found a fix from this web site http://dae.cyberic.eu/blog/building-boot-caches-error-when-changing-startup-disk/ but I don't understand how to apply that. Can someone help?

 

[apunkrockmonk]

Alright, open up text edit and create a new text document.

In that document cut and paste the following:

<?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>Kernel</key>
	<string>mach_kernel</string>
	<key>Kernel Flags</key>
	<string></string>
</dict>
</plist>

Save the document as com.apple.Boot.plist, make sure not to append the .txt extension to the end.

And the last step is select the go to folder command (Go > Go to folder) and cut and paste this in: /Library/Preferences/SystemConfiguration/

Move the file you created into the folder that opened, you will need to put in your administrator password.

And that should be it!

 

[Kenc1103]

Alright, open up text edit and create a new text document.

In that document cut and paste the following:

<?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>Kernel</key>
	<string>mach_kernel</string>
	<key>Kernel Flags</key>
	<string></string>
</dict>
</plist>

Save the document as com.apple.Boot.plist, make sure not to append the .txt extension to the end.

And the last step is select the go to folder command (Go > Go to folder) and cut and paste this in: /Library/Preferences/SystemConfiguration/

Move the file you created into the folder that opened, you will need to put in your administrator password.

And that should be it!

I followed the steps but still getting the same error message and won't let me select my startup disk. Please help me.

 

[Dae]

If you're still getting the error, ask me in comments by the link in your post.

 

[bonimac]

this happens on my iMac (regular HD) from aug 2011 and MBP (vertex4 SSD) from okt. 2011.
Both with os X Mountain Lion.
Booting from other Mac in target mode, or simply from external drive with os X installed on gives me the same error as described here.

On my MBP, rebooted in recovery partition, i even can't get back to normal boot.
Alway's the same message.

Only way around on iMac & MBP is to restart en hold the option button.
Then i can choose the drive / partition / Mac in target mode to start from.