Mkdir error after install-linux-hdd.sh

Linux-noob

Milkdir error after install-linux-hdd.sh
I got every thing set up as the modded warfare tutorial .
After typing in install-linux-hdd.sh the shell asks for how much space i should allocate for the os
I when ever i type and value (i typed 50 ) an error shows up about failing to mount in directory as it already exists at /dev/mapper/ps4hdd
Any way i do not understand any of this but i saw that if i wanted to skip i should type in mkdir and 2 options appeared -m and -p
When i typed that nothing happened is there any thing i could do to finally boot into linux ?

Mag-G

OK what did ModdedWarfare tell you to this and at which point his help didnt work for you?

Linux-noob

Mag-G this didn't happen at modded warfare's video
To put it simply i typed the command as the video said
I expected the shell to question how much space i want to allocate for the os
But the error was unexpected
And i am using the 1gb payload as its the one to use when setting up the os for the first time