[bhyve] FreeBSD guest, Handbook, vmrun.sh

Hi All,

I try to create a FreeBSD guest as per TH, section "21.7.2. Creating
a FreeBSD Guest". All is good up until the last command at the section.
When I try to launch the installed client, I get:
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# sh /usr/share/examples/bhyve/vmrun.sh -c 4 -m 1024M -t tap0 -d
guest.img guestname
Launching virtual machine "guestname" ...
Installation CDROM image "./release.iso" is not readable

% uname -a
FreeBSD latt.bsnet 12.0-CURRENT FreeBSD 12.0-CURRENT #14 r320821: Sun
Jul  9 07:10:56 MSK 2017
bsam_at_builder.bsnet:/usr/obj/usr/src/sys/PKG64X  amd64
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Is it a bug at vmrun.sh or documentation?

-- 
WBR, bsam