I have created bootable pen-drive using installer. I performed following Steps but it failes.
- Erase the Hard-disk from disk utility.
- restart the iMac (hold down - Option key)
- it shows me the pen-drive (but i select the pendrive prohibited symbol display.)
Note: same pen-drive works in other macs. no issue in startup one more thing i cant even see my internal hard-disk as startup disk list
Any help would greatly appreciated.