I have installed Kali Linux dualboot alongside Windows 7. I used an encrypted install. When I select Kali Linux from grub and I boot it up and try to mount my 102GB encrypted partition it asks me for authentication. When I put in my password it gives me this error "Unable to Mount Unrecognized -- One or more block devices are holding /dev/dm". Can anyone help me out?

Also when I start up my computer and I boot Kali Linux sometimes it can't find the group volumes and it gets stuck searching for them. I have to reboot my computer a few times until it finally finds them and asks me for my passphrase. Is there anyway I can add persistance or something so that it finds the volumes every time? Sorry I am a new linux user just started using it about 2 weeks ago but I am learning fast. Thanks for any help it is much appreciated.