pub fn new() -> KernelManager {
        KernelManager {
            vfs: VFS::RootFS {},
        }
    }
// create a default Kernel Manager with a single empty file (dir) in the HFS
create a default Kernel Manager with a single empty file (dir) in the HFS
create a default Kernel Manager with a single empty file ( dir ) in the HFS
pub fn new() -> KernelManager {
        KernelManager {
            vfs: VFS::RootFS {},
        }
    }
pub fn new ( ) -> KernelManager { KernelManager { vfs : VFS :: RootFS { } , } }
create a default Kernel Manager with a single empty file (dir) in the HFS
create a default Kernel Manager with a single empty file ( dir ) in the HFS