Devuan Linux Jail on FreeBSD 13.2

gistfile1.txt

root@srv0:/etc/jail.conf.d # cat linux0.conf 
# vim: set syntax=sh:
exec.clean;
allow.raw_sockets;
mount.devfs;

linux0 {
  $id             = "2";
  devfs_ruleset   = 10;
  $bridge         = "bridge10";
  $domain         = "srv0.abi.am";
  vnet;
  vnet.interface = "epair${id}b";

  mount.fstab     = "/etc/jail.conf.d/${name}.fstab";

  exec.prestart   = "ifconfig epair${id} create up";
  exec.prestart  += "ifconfig epair${id}a up descr vnet-${name}";
  exec.prestart  += "ifconfig ${bridge} addm epair${id}a up";

  exec.start      = "/sbin/openrc default";

  exec.stop       = "/sbin/openrc shutdown";
  exec.poststop   = "ifconfig ${bridge} deletem epair${id}a";

  host.hostname   = "${name}.${domain}";
  path            = "/usr/local/jails/linux0";
  exec.consolelog = "/var/log/jail/${name}.log";
  persist;

  exec.jail_user  = "root";
  exec.system_jail_user = false;
  allow.socket_af;
}
root@srv0:/etc/jail.conf.d # cat linux0.fstab 
devfs       /usr/local/jails/linux0/dev      devfs     rw                   0 0
tmpfs       /usr/local/jails/linux0/dev/shm  tmpfs     rw,size=1g,mode=1777 0 0
fdescfs     /usr/local/jails/linux0/dev/fd   fdescfs   rw,linrdlnk          0 0
linprocfs   /usr/local/jails/linux0/proc     linprocfs rw                   0 0
linsysfs    /usr/local/jails/linux0/sys      linsysfs  rw                   0 0
/tmp        /usr/local/jails/linux0/tmp      nullfs    rw                   0 0
root@srv0:/etc/jail.conf.d # jls -N
 JID             IP Address      Hostname                      Path
 siras0                          siras0.srv0.abi.am            /usr/local/jails/siras0
 linux0                          linux0.srv0.abi.am            /usr/local/jails/linux0
root@srv0:/etc/jail.conf.d # jexec -l linux0 /bin/bash
root@linux0:~# ps auxf
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root     93675  0.0  0.0   6036  3692 pts/1    S    21:22   0:00 /bin/bash
root     94152  0.0  0.0   5152  2180 pts/1    R+   21:22   0:00  \_ ps auxf
root     30930  0.0  0.0  10788  7568 ?        Ss   21:15   0:00 /usr/sbin/sshd
root     99509  0.0  0.0   3900  2460 ?        Ss   21:15   0:00 /usr/sbin/cron
root     90875  0.0  0.0   4552  2968 ?        Ss   21:15   0:00 /usr/sbin/rsyslogd