ad0: 15247MB <ULTIMATE CF CARD Ver6.04K> at ata0-master UDMA33
uhub1: 2 ports with 2 removable, self powered
uhub2: 2 ports with 2 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub4: 8 ports with 8 removable, self powered
ad0: FAILURE - READ_DMA timed out LBA=31227837
ad0: FAILURE - READ_DMA timed out LBA=31227823
ad0: FAILURE - READ_DMA timed out LBA=31227836
ad0: FAILURE - READ_DMA timed out LBA=31227839
ad0: FAILURE - READ_DMA timed out LBA=31227839
ad0: FAILURE - READ_DMA timed out LBA=31227777
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=16
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=16
ad0: FAILURE - READ_DMA timed out LBA=16
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=0
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=0
ad0: FAILURE - READ_DMA timed out LBA=0
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=512
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=512
ad0: FAILURE - READ_DMA timed out LBA=512
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=64
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=64
ad0: FAILURE - READ_DMA timed out LBA=64
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=0
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=0
ad0: FAILURE - READ_DMA timed out LBA=0
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=2
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=2
ad0: FAILURE - READ_DMA timed out LBA=2
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=16
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=16
ad0: FAILURE - READ_DMA timed out LBA=16
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=128
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=128
ad0: FAILURE - READ_DMA timed out LBA=128
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=0
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=0
ad0: FAILURE - READ_DMA timed out LBA=0
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=0
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=0
ad0: FAILURE - READ_DMA timed out LBA=0
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=1
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=1
ad0: FAILURE - READ_DMA timed out LBA=1
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=0
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=0
ad0: FAILURE - READ_DMA timed out LBA=0
ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=31227839
ad0: TIMEOUT - READ_DMA retrying (0 retries left) LBA=31227839
ad0: FAILURE - READ_DMA timed out LBA=31227839
Trying to mount root from ufs:/dev/ufs/pfsense0
ROOT MOUNT ERROR:
If you have invalid mount options, reboot, and first try the following from
the loader prompt:

     set vfs.root.mountfrom.options=rw

and then remove invalid mount options from /etc/fstab.

Loader variables:
vfs.root.mountfrom=ufs:/dev/ufs/pfsense0
vfs.root.mountfrom.options=ro,sync,noatime

Manual root filesystem specification:
  <fstype>:<device>  Mount <device> using filesystem <fstype>
                       eg. ufs:/dev/da0s1a
                       eg. cd9660:/dev/acd0
                       This is equivalent to: mount -t cd9660 /dev/acd0 /

  ?                  List valid disk boot devices
  <empty line>       Abort manual input

mountroot>