BootCacheControl: Unable to open /Var/db/BootCache.playlist:2 No such file or directory

Hi,
we are unable to boot our mac mini running the latest version of Mountain Lion (10.8.2); to try to fix we performed severals permision disk check using the recovery system (Restart your Mac and hold down the Command key and the R key [Command-R], and keep holding them until the Apple icon appears) as noted on http://support.apple.com/kb/HT4718.
The boot sequence starts then stops and nothing happens. these are the last lines of the boot sequence.
(... omissis ...)
Kernel is LP64
com.apple.launchd     1     com.apple.launchd     1     *** launchd[1] has started up. ***
com.apple.launchd     1     com.apple.launchd     1     *** Verbose boot, will log to /dev/console. ***
com.apple.launchd     1     com.apple.launchd     1     *** Shutdown loggin is enabled. ***
Running fsck on the boot volume...
** /dev/rdisk0s2 (NO WRITE)
** Root file system
   Executing FSCK_HFS (version diskdev_cmds-557-393).
FIPS USER Space POST: Integrity test success!
(... omissis ...)
FIPS USER Space POST Success!
BootCacheControl: Unable to open /Var/db/BootCache.playlist:2 No such file or directory
As usual, any ideas, solutions, suggestions are welcomed.
Thank you in advance for your help and support
-- federico

Boot into Recovery by holding down the key combination command-R at the startup chime. Release the keys when you see a gray screen with a spinning dial.
Note: You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with proxy servers, or with networks that require a certificate for authentication.
When the OS X Utilities screen appears, follow the prompts to reinstall the OS. You don't need to erase the boot volume, and you won't need your backup unless something goes wrong. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade, so make a note of those before you begin.

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    5. Checked my EFI update and am running the latest version
    6. Tried resetting the NVRAM but computer will not work from the keyboard shortcuts
    7. Run Verbose mode where I could see the problem with loading Bootcache which produces the following script /var/db/BootCaches.playlist 2:no such file or directory
    8. Created a carbon copy backup also and am now considering a full wipe
    I have updated to Mac Book Airs in the last few weeks, and after the computer auto restarts the program then moves to a new processing screen where it finalises writing script, this point never happened on my iMac and after it restarted it just hung on the grey screen with the Apple logo. It is definitely in the Bootcache problem as this is one of te last processes and matches the amount of time the computer starts working before it heads into the grey hanging screen of death. This is definitely something that mavericks script alters, moves or deletes as I have seen this problem littered across the forums as well as the in ability for Safe mode now to work.
    I am back up and running 10.6.8 at current and downloading a new version of Mavericks (more fool me). It could be a drive corruption but am unsure, but the computer s working well on 10.6.8 and has done for a very long time. Has anyone solved this yet, as t s driving me crazy!!!
    Any Jedi's out there, I would be most indebted to you!
    M-A

    Hi all,
    Well I thought I would re-post as have found a solution.
    I created a bootable USB version of Mavericks using this article here which was very informative: http://www.techrepublic.com/blog/apple-in-the-enterprise/how-to-create-a-bootabl e-usb-to-install-os-x-mavericks/
    I then rebooted via it, this again caused the grey screen of death as I thought it would, from reboot to reach this screen I held the Option Button. Before I did this I took a cloned copy of the hard drive and also backed-up again to Time Machine. Have over 470GB of music, photos and films, so yes was being a little over precautious.
    I then rebooted and went into recovery mode (Cmd and R) and erased my hard drive.
    I then rebooted once again but booted from my Mavericks USB version now with a clean hard drive, and set-up completed as expected with no problems. Its working beautifully at current but am yet to migrate files using the migration assistant, but once I have the new Mavericks version of my machine backed-up I will complete the migration, fingers crossed!
    A few days of pain, but was a good learning experience. It was more difficult than it should be to created a bootable USB, but luckily I had another mac to work on and a decent back-up drive.
    Hopefully helpful to others!
    M-A

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    I have reloaded Lion server at least a dozen times and it keeps happening after I update to 10.7.1 /var/db/BootCache.playlist gets deleted. I dont know ifs its something I am doing wrong when setting up my server but this is getting crazy. I only host a website and use as email server for that website. Does anyone think it might be, I set up the Server HD as a sharepoint? This is the only thing I can think of? Has anyone else had this problem? I also change the greylisting feature using Terminal but I am changing no files near /var/db/. Any ideas cause 12 times of setting up a server is making me mad? Thanks!

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    got on the phone with Apple and did the following:
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