(Go to the last paragraph if you want to skip the background of my question)
I was previously using a corporate modified version of Maverick. After Yosemite is out, I immediately upgraded my OS to the latest ones. However, since I'm upgrading from a corporate modified version, when it's booting up in Yosemite (showing the progress bar), it has 80% of chance to halt at the middle of the progress bar.
I believe that something is wrong; but I got no clue.
I want to ask, during the boot-up in Yosemite, is it possible to see the details when the progress bar progresses?
Thanks a lot.