I just bought the Mountain Lion upgrade, but it's unable to complete. When I select my harddrive it says:
Some features of OS X Mountain Lion are not supported for the disk “kollaps”.
Features such as FileVault and Recovery Mode won't be available if you install Mountain Lion on this disk. To learn more, click More Info. To continue with the installation, click Continue.
I continue the installation, but after a reboot and some minutes has passed it claims that it cannot create a recovery partition. The installation aborts.
Here are my partitions:
$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *750.2 GB disk0 1: EFI 209.7 MB disk0s1 2: Apple_HFS kollaps 498.6 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Apple_HFS Blank 250.6 GB disk0s4
And here's my GUID partition table:
$ sudo gpt -r show disk0 start size index contents 0 1 PMBR 1 1 Pri GPT header 2 32 Pri GPT table 34 6 40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B 409640 973843192 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC 974252832 1269528 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC 975522360 489364624 4 GPT part - 48465300-0000-11AA-AA11-00306543ECAC 1464886984 262151 1465149135 32 Sec GPT table 1465149167 1 Sec GPT header
My existing Recovery HD works just fine. I have verified all partitions, and cleaned up file system permissions. In addition I have resized my main partition slightly to make sure the EFI has been recreated (in case it had problems).
Still no go. Do I really have to reinstall the full HD?
WORKAROUND: When I selected the partition "Blank" (disk0s4) as my upgrade partition, the warning dialogue didn't appear. It installed a fresh OSX Mountain Lion on it, and I used the Migration Assistant to copy settings, programs and users from the primary partition. This means that the Recovery HD was not at fault even though the installer claimed that, but I guess something was "wrong" with my primary partition. This solution still isn't a very good one.