Hard Drive Not Booting

[Kevin R]

Hi All.... I need so;union to my seagate 3TB hard drive not booting.... It takes all my back up info and downloads it. When I try to restart unit with this hard drive from system preferences I get the message " You cannot Building boot caches on boot helper partition failed. I tried using disk utility to no avail...(gives same message) Can anyone help with a solution ?
Thank you in advance.....Kevin

 

[Spawn_Dooley]

"You cannot Building boot caches on boot helper partition failed."

Can you have another look at the message you get please, it doesn't make sense literally.

 

[Cory Cooper]

Hello and welcome.

I believe the error is "Building boot caches on boot helper partition failed." This was a known issue with Mac OS X 10.8.x Mountain Lion.

-Which model Mac?
-Which version of Mac OS X?
-How is the Seagate drive partitioned/formatted- GUID/Mac OS Extended (Journaled)?
-What do you mean by "It takes all my back up info and downloads it."?

C

 

[Kevin R]

Cory/ Early 2008-Dual/ 2.8 xenon 4 core/Mt Lion extended/journaled/ Thanks KR

 

[Cory Cooper]

Thanks.

Here's a discussion about it on Apple Discussions:
In OS X 10.8.2 get "Building boot caches on boot helper partition failed" when changing startup HD

Make sure you have a current Time Machine backup. Of interest is the Terminal command in the post by Iain Simms.

C

 

[Kevin R]

Can you have another look at the message you get please, it doesn't make sense literally.

 

[Kevin R]

Spawn Dooley/ See Cory's explanation/Thanks