Hi all, following this useful article on how to create a partition to install Windows (How to Install Windows After Ubuntu Linux in Dual Boot) but cannot resize the linux partition when booting from a usb. The linux partition should not be mounted but the resize option on the popover is disabled. I also tried doing this on gparted as shown on the attached but the minimum and maximum size appear to be the same.
Has anyone encountered this issue before? Perhaps the partition is active in some other way? Many thanks.