I was having the same issue for the last 3 hours. I tried so many different things. I was about to call it quits and just walk away and resolve myself to stay at 10.9.5.
As a last ditch effort I removed any multibeast installed kexts out of /S/L/E. I then removed the EFI/CLOVER/kexts/10.X...
Ditto. I can't get past the spinning beach ball of death. The only difference for me is I'm coming from Mavericks. Same clover rev. Using the default config.plist from here, slightly modified to get rid of "rootless=0" and to not inject intel graphics.
Just updated to Mavericks and Mavericks.1 a few hours ago with one little hiccup:
I had to disable onboard video in order for Mavericks to boot. With onboard video enabled the system hung at the spinning apple logo.
Dude! You da man! Worked perfectly!
I actually tried disabling the onboard graphics first, which worked, and then I tried setting it to init the PCI card first, which also worked.
The funny thing is I noticed my system boots much faster with the HD4000 graphics disabled (around 10 seconds)...
I have had some issues with 10.8.3, documented here:
I'm not really in a rush to get to 10.8.3 as 10.8.2 has been working great for me.
Had the same result when trying to install the latest Java update.
Here's what I did:
Installed 10.8.3 from the combo update.
Rebooted, ran into the problem many others were having, fixed it with this:
Not working for me on my z77-ds3h. Luckily I had made a SuperDuper! copy before the upgrade and was easily able to restore my boot disk.
Any ideas why it isn't working for me? After the update I get the spinning circle at the apple screen. I let it sit for 5 minutes before rebooting and restoring.