DEFUSRSIZE
DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE,
DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE + XNEEDMB);
{ .def_size = DEFUSRSIZE*(MEG/512), .mount = "/usr", .type = PT_root,
(uint64_t)(DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE)*MEG,
(uint64_t)(DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE
#ifndef DEFUSRSIZE
DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE + XNEEDMB;