11.1Sbrookmenu=Boot normally:rndseed /var/db/entropy-file;boot 21.1Sbrookmenu=Boot single user:rndseed /var/db/entropy-file;boot -s 31.1Sbrookmenu=Drop to boot prompt:prompt 41.1Sbrookdefault=1 51.1Sbrooktimeout=5 61.1Sbrookclear=1 7