] printenv
printenv
  config_board = 'm68ap'
  loadaddr = '0x9000000'
  boot-command = 'fsboot'
  bootdelay = '0'
  idle-off = 'true'
  boot-device = 'nand0'
  boot-partition = '0'
  boot-path = '/System/Library/Caches/com.apple.kernelcaches/kernelcache.s5l8900
xrb'
  display-color-space = 'RGB888'
  display-timing = 'optC'
P activate = '1'
P filesize = '33550336'
P bl39 = '1'
P unlock = '1'
P jailbreak = '1'
P boot-args = 'rd=md0 -s -x pmd0=0x09CC2000.0x0133D000'
P auto-boot = 'false'
  image-version = '0x2'
  framebuffer = '0xfe00000'
  secure-boot = '0x1'
] setenv boot-args=""
setenv boot-args=""
] saveenv
saveenv
] fsboot
fsboot
root filesystem mount failed