mannan biosynthetic process fungal-type cell wall polysaccharide biosynthetic process beta-1,2-oligomannoside metabolic process beta-1,2-oligomannoside biosynthetic process beta-1,2-oligomannoside biosynthesis beta-1,2-oligomannoside anabolism beta-1,2-oligomannoside formation biological_process The chemical reactions and pathways resulting in the formation of beta-1,2-linked oligomannosides, which are found in fungal cell wall phosphopeptidomannan and phospholipomannan. beta-1,2-oligomannoside synthesis GO:0070136