At boot prompt enter mc followed by one or more space separated options:

 tce={hda1|sda1}            Specify restore TCE apps directory
 restore={hda1|sda1|floppy} Specify saved configuration location
 waitusb=X                  Wait X seconds for slow USB devices
 swapfile{=hda1}            Scan or specify swapfile
 home={hda1|sda1}           Specify persistent home directory
 opt={hda1|sda1}            Specify persistent opt directory
 lst=yyy.lst                Load alternate static yyy.lst on boot
 base                       Do not load any extensions
 norestore                  Turn off the automatic restore
 safebackup                 Saves a backup copy (mydatabk.tgz)
 showapps                   Display application names when booting
 iso=sdb1                   Boot directly from iso file at sdb1
 iso==/mnt/sdb1/multiboot/ISOS/TinyCore-4.4.iso