I have been getting this error libc6-ydeb failed for unknown reasons. Aborting while installing Kali on my hard drive. I do not have any problems with live but that's not something I want to do.Also, it shows an message saying " failed to unmount media. dev/sda cannot be mounted something like that while loading installer component. I am using Dell optiplex 7010 and i do not have any OS except live Kali. Is there any change to be made in hard drive?