The error log is too long to post, so I attached it. I have (had?) Yosemite installed. I wanted to reinstall it fresh (cmd+R). The first time I tried I got the attached error. Now when I restart and try to install it just says "an error has occurred." Now I can't boot into anything but recovery. Should I use the disk manager to erase and try again, or will that delete the system restore portion of the internal HDD?