Hello,
I'm trying to install El Capitan since it came out but I keep getting this error:
"This Core Storage operation is not allowed on a sparse logical volume group. Quit the installer to restart your computer and try again."
I've tried it many times but I keep getting this error. I've searched online but couldn't find much except that it should work when you wipe the whole HD and do a clean install but I really don't want that.
Is this a common problem and how can I fix it without wiping the whole HD? Thanks.