Bootcamp Assistant no longer working - asking for boot rom?

Question

Hi,
I just upgraded from Lion to Mountain Lion (1 SSD 250 GB and 1 HD 2 To) and wanted to create an bootcamp partition. As I start the Boot Camp assistant I get an error stating: "Boot Camp Assitant cannot be used. You must update your computer's Boot ROM firmware before using this setup assistant."
Any suggestions?
Thank's for your help
Maurice

Answer 1

Hi again,
just some more information about my setup:
Hardware Overview:
  Model Name:          iMac
  Model Identifier:          iMac12,2
  Processor Name:          Intel Core i7
  Processor Speed:          3.4 GHz
  Number of Processors:          1
  Total Number of Cores:          4
  L2 Cache (per Core):          256 KB
  L3 Cache:          8 MB
  Memory:          16 GB
  Boot ROM Version:          IM121.0047.B1F
  SMC Version (system):          1.72f2
  Serial Number (system):          DG*******HJW
  Hardware UUID:          197E4E0A-B7C5-5C8C-814E-0F0816BB7054
and
APPLE SSD TS256C:
  Capacity:          251 GB (251,000,193,024 bytes)
  Model:          APPLE SSD TS256C                       
  Revision:          CJAA0202
  Serial Number:                  X1EA40E6K9OK
  Native Command Queuing:          No
  Removable Media:          No
  Detachable Drive:          No
  BSD Name:          disk0
  Medium Type:          Solid State
  TRIM Support:          Yes
  Bay Name:          SSD
  Partition Map Type:          GPT (GUID Partition Table)
  S.M.A.R.T. status:          Verified
  Volumes:
disk0s1:
  Capacity:          209.7 MB (209,715,200 bytes)
  BSD Name:          disk0s1
  Content:          EFI
Fast:
  Capacity:          250.66 GB (250,656,219,136 bytes)
  Available:          250.34 GB (250,343,534,592 bytes)
  Writable:          Yes
  File System:          Journaled HFS+
  BSD Name:          disk0s2
  Mount Point:          /Volumes/Fast
  Content:          Apple_HFS
and
Hitachi HDS722020ALA330:
  Capacity:          2 TB (2,000,398,934,016 bytes)
  Model:          Hitachi HDS722020ALA330                
  Revision:          JK0KB35E
  Serial Number:                JK11H1BFHXDT5R
  Native Command Queuing:          Yes
  Queue Depth:          32
  Removable Media:          No
  Detachable Drive:          No
  BSD Name:          disk1
  Rotational Rate:          7200
  Medium Type:          Rotational
  Partition Map Type:          GPT (GUID Partition Table)
  S.M.A.R.T. status:          Verified
  Volumes:
disk1s1:
  Capacity:          209.7 MB (209,715,200 bytes)
  BSD Name:          disk1s1
  Content:          EFI
Slow:
  Capacity:          2 TB (1,999,539,175,424 bytes)
  Available:          1.98 TB (1,975,219,220,480 bytes)
  Writable:          Yes
  File System:          Journaled HFS+
  BSD Name:          disk1s2
  Mount Point:          /
  Content:          Apple_HFS
Recovery HD:
  Capacity:          650 MB (650,002,432 bytes)
  BSD Name:          disk1s3
  Content:          Apple_Boot
Maybe that info helps
Maurice
<Edited By Host>