orm0: <ISA Option ROM> at iomem 0xeb000-0xeffff pnpid ORM0000 on isa0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff pnpid PNP0900 on isa0
attimer0: <AT timer> at port 0x40 on isa0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounters tick every 10.000 msec
pass0 at ata1 bus 0 scbus1 target 0 lun 0
pass0: <QEMU HARDDISK 2.5+> ATA-7 device
pass0: Serial Number QM00003
pass0: 16.700MB/s transfers (WDMA2, PIO 8192bytes)
Trying to mount root from ufs:/dev/ada0s1a [ro]...
mountroot: waiting for device /dev/ada0s1a...
Mounting from ufs:/dev/ada0s1a failed with error 19.

Loader variables:
  vfs.root.mountfrom=ufs:/dev/ada0s1a
  vfs.root.mountfrom.options=ro

Manual root filesystem specification:
  <fstype>:<device> [options]
      Mount <device> using filesystem <fstype>
      and with the specified (optional) option list.

    eg. ufs:/dev/da0s1a
        zfs:zroot/ROOT/default
        cd9660:/dev/cd0 ro
          (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /)

  ?               List valid disk boot devices
  .               Yield 1 second (for background tasks)
  <empty line>    Abort manual input