10.7.2 won't install, 10.7.2 won't install

Question

Update worked on my iMac, however when I tired to update on my MacBook I'd run into some problems. The update would go smoothely until the system would go to restart and install and then would stop and say that it could not continue because the OS X may have been corupted during download. Then I'd be foreced to restart and try again. I've also tried directly dl'ing the dmg from Apple, when I go to mount it, it says "invalid checksum" been scouring the net for solutions but have come up short. Any help would be great! thanks!

Answer 1

I figured I'd go back to my hacking cracking ways and try and get a hold of a fresh original copy of Lion from July, and then crack out a bootable disk from the image if I could get one.  Unfortunately, this will only work if you bought the update.  This is what worked for me-
Instructions:
1) Open the App Store
2) Click on the featured tab
3) Hold the OPTION key on the keyboard and click on the "PURCHASED" tab. 
(normally, in the list of purchased items, the OS X Lion purchase will be 'grayed-out' and listed as INSTALLED)
4) Holding option andd clicking will allow you to redownload the OS X Lion download- My download constantly was getting a "Hash" error but would allow me to "retry" and keep the download coming
5) The update installed normally after a long download from the App store
When the install rebooted, there was an Aperture update and an iTunes update that popped up. The iTunes update installed fine.  The Aperture update reported the same old damaged when downloading error.  After my third try, I went to the downloads page and pulled down the update .dmg and all installed fine.
hope this helps.
mike