Snow lep install now hard drive wont boot

[mattbough]

Just tried to update my mac to snow lep and then all seemed well it said that it installed correctly after doing a full format clean install, i thought i was in luck when i booted it up nothing happend juts a white screen and then it booted from the hard drive, since tehn i pressed the options button and realised that the hard drive was not availible to boot from, although after that i then put the install disk in and it all seemed to be installed fine on the hard drive any idea about how to make the hard drive bootable again?

 

[mattbough]

anyone?

 

[tom vilsack]

just did same thing a couple days ago...

-imac intel 2.0...i did a full erase (writing zeros) single partition,retail sl dvd

without knowing your comp ill ask these...

-retail dvd? not someone elses grey recovery disks?
-intel imac?
-before install it showed the drive you formated and partitioned?

have you tryed resetting pram?

 

[mattbough]

yes its an intel mac with retail disks and w/e no idea what pram is, if you would please explain, and i formatted and partitioned before installing with 2 parts to a guid thing lol im not good with macs only just started lol

 

[tom vilsack]

humm you partitioned drive into two parts,,perhaps the mac is booting to the non snowleopard part?

to select a drive at boot...turn on imac,press option key before "chime" sound,select drive to boot from

to reset you pram...turn on imac,press Command-Option-P-R keys before "chime" sound...continue to hold down these 4 keys until you hear second "chime" release and pram will be reset

 

[mattbough]

nothing appears when i press option key.