currently I'm unable to install the latest thunderbolt firmware update on my i-mac 27" mid 2011.
I get the update via App store. I starts to install, reboots but there is no status bar after reboot. In the App store again I get the update shown as new. Also trying install it manually did not work.
I already made a reset of PRAM and SMC.
Still no luck.
On my macbook air 13.3 the update installs fine.
Does anybody else have this issues?
AppleCare currently have no idea what to do.
What else can I try?
the partion table of the / volume was corrupted. after repairing this everything works fine.