There was a problem installing Mac OS X

PRAM reset sorted it out for me too!

Thanks

Thank you austingaijin!

Reseting the PRAM did the trick! Thank you!

n

Thank you very much!

Just solved my problem. Thanks a lot.

Spent 3 days struggling with this. Thanks for the solution!

Thanks! After struggling for a few hours I found your tip. I thought about trying to reset PRAM but didn't. Your post led me to do it and it worked great.

...Sam

THANK YOU!! PRAM reset worked for me too!!! I had made the bootable DVD and wiped my hard drive clean. I did not want to go all the way back to Snow Leopard either (sounds like that would not have fixed it anyways).

Doing my fresh Lion install right now, and it only takes 15~20 min.

Worked perfectly!!

Thanks, this worked for me as well! I was completely stumped why I couldn't install! Never had this type of issue before.

PRAM works!

After reseting the PRAM, and plug in the USB (I made it with a 16GB HP flash drive), it automatically loads into the page of language selection, then pops up "Install Lion", it takes about 5 mins for the initial installation, I believe its copying the necessary installation files into the HD, a clean isntall of Lion, here we go!

I got the problem is because I tried to load the "Mac Lion Installer App" from desktop, but realise the installation starts automatically without notice of Disk Utitlties for formating the disk to be cleaned. Therefore I abort the installation and plug in the "home made Lion installer" and it keep crashing...i believe there was some initialized commands set at the reboot and push me away from loading new installer image, PRAM works!

Thanks! This worked perfectly for me as well.

This also worked for me on a MacBook Pro. I wiped the HDD that had 10.6.8 on it and I was installing from a Lion DVD. I got the "Installation Failed. Try Reinstalling" error and it would not give any options to even try again without restarting. I reset the PRAM and it went right into the installation process. Great post.

iBlink wrote:

I reset the PRAM and it went right into the installation process.

It amazes me that people still never come here and search the forums for an answer instaed of waiting for someone else to post with their problem and then jump on the thread like it's a totally new issue. The answer has been here since Lion was first released, if you'd bother to use the search field.

Cheers

Never occurred to me that PRAM was the issue. I thought it was the USBdrive, or the hidden partition. (I had a power failure during the first installation.) I have clones of my SL partition and Bootcamp partition, and must have erased the internal drive, and cloned these two partitions back at least 4 times over the last two days! Also, downloaded the Lion Instal all 4 times. (I know, now I have a copy of that on the clone.) Anyway, thanks, thanks, thanks.

- Doug

PS, As writing to PRAM to install OSX is a completely new trick for Apple, its not a obvious solution. Especially when installing from a burn of Lion to USB stick is not really a Apple supported method. Combine this with a cryptic error message and poof, a lot of confusion.

There's one more step to do this for those who have the firmware password turned on: turn it off.

You can't reset PRAM/NVRAM if the firmware is password protected.