Persistence space error

I've long since given up on trying to dual boot, so I turned to a live boot situation, only to find more ordeals; here's the story this time:

I have followed the "Official Documentation" on how to live boot a usb.
I burned an install disc
I live booted the disc and after that was loaded, I plugged in a 32gb flash drive
I opened gparted and deleted all data on the flash drive
I used the command "dd if=/media/"Hard Drive"/Users/mttmm/desktop/Kali.iso of=/dev/sdb bs=512k" from the live boot, that worked fine
i then used gparted to create an ext4 partition named "persistence"
i then proceded to add the conf file with these commands
mkdir /mnt/usb
mount /dev/sdb2 /mnt/usb
echo "/ union" >> /mnt/usb/persistence.conf
umount /mnt/usb

I shutdown, took out the cd, and left the usb in
when i booted, i hit tab, and typed in "persistence" (no quotes of course)
the union seemed sucessful, as only "Kali Live" was was mounted and when i opened it, it had persistence.conf inside (indicating union with persistence)
after that, I tried an apt-get update, it seemed succesful
I wanted to apply updates, so I punched in "apt-get dist-upgrade"
it loaded this error:

After this operation, 927 MB of additional disk space will be used.
E: You don't have enough free space in /var/cache/apt/archives/.

it does this anytime I try to install much of anything, i've never noticed if it was the same spot that didn't have enough room.
I know that i have enough room, i used the rest of a 32gb flash drive as persistence..... I just don't get it

Any suggestions anyone has would be greatly appreciated, if anyone has ideas then please respond