Mountain Lion damaged my hard disk
I tried installing ML in my iMac running Snow Leopard, and I also got the hard disk damage problem.
It seems some people that were running Lion have been able to run de Disk Utility booting from the Recover Partition, which is not featured in Snow Leopard.
I also saw people suggesting to use Disk Warrior or Tech Tool Pro to recover the disk, but haven't heard of any positive feedback and I am not paying to solve a problem I did not create.
This seems like a major bug in Mountain Lion so far being ignored by Apple. I have heard of people taking their computers to technical support and the people at Apple suggesting to replace the hard disk, which is a pretty convenient solution, since they are not the ones losing their files.
If the installation of ML not even started, how come I cannot switch back to my status quo and boot normally in my Snow Leopard? I am really disappointed about this situation and I would like to hear from people who were able to recover their computers from Snow Leopard, especially people at Apple that seem to be silent about this problem so far.
iMac (21.5-inch Mid 2010), OS X Mountain Lion