Can't start asm filter driver I'm trying to install oracle grid with asm filter driver.

I've already installed grid software only.

As root, I can't start asm. Actually, I don't have any answer from asmcmd filter driver commands:

root@srvdb18c:/u01/app/18.0.0/grid/bin# env|grep ORACLE
ORACLE_BASE=/u01/app/grid
ORACLE_HOME=/u01/app/18.0.0/grid
root@srvdb18c:/u01/app/18.0.0/grid/bin# ./asmcmd afd_configure
root@srvdb18c:/u01/app/18.0.0/grid/bin#
root@srvdb18c:~# $ORACLE_HOME/bin/asmcmd afd_state
root@srvdb18c:~#


What can be the problem?

Important: it's a Solaris 11 system.
Configuring Oracle ASM Filter Driver During Installation


  This procedure must be performed after the Oracle Grid Infrastructure
  installation zip files have been unzipped in the Oracle Grid
  Infrastructure home, but before you enable the Configure ASM Filter
  Driver check box during the installation process when the setup script
  is run.


su root
# set ORACLE_HOME=/u01/app/oracle/12.2.0/grid
# set ORACLE_BASE=/tmp

# asmcmd afd_label DATA1 /dev/disk1a --init

# asmcmd afd_lslbl /dev/disk1a



  Run the setup installation script (gridSetup.sh) to install Oracle
  Grid Infrastructure and enable Oracle ASM Filter Driver configuration.
  
  On the Create ASM Disk Group wizard page during the installation
  process, check the Configure ASM Filter Driver box to enable
  configuration of Oracle ASM Filter Driver and then add your
  provisioned disks to the initial disk group (typically named DATA).


I used the above before an it worked.

Example: https://balazspapp.wordpress.com/2017/03/20/installing-oracle-12c-release-2-12-2-rac-on-virtualbox-silent-installation-part-3/

Based on the documentation, afd_configure and afd_state are used when you migrate an existing installation to AFD.