Riferimento: maledettissimo errore mountroot
non me lo fa caricare
--------------- AGGIUNTA AL POST ---------------
ums0: <VirtualBox USB Tablet, class 0/0, rev 1.10/1.00, addr 2> onusbus0
ums0: 5 buttons and [Z] coordinates ID=0
Tryng to mount root from ufs:/dev/ad0s1a
ROOT MOUT ERROR:
If you have invalid mount options, reboot, and firstly 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/ad0s1a
vfs.root.mountfrom.options=rw
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>