[Samba] converting smbpasswd to passdb.tdb - machine accounts

[Helmut Hullen]

Hallo,

I'm trying to convert smbpasswd to passdb.tdb.

   cd /etc/samba/private
   # (where smbpasswd lies)
   pdbedit -i smbpasswd -e tdbsam:/etc/samba/private/passdb.tdb

converts all human users, but it converts (or transfers) no machine  
account.

In "smbpasswd" are many entries beginning with (p.e.)

        mac001$

for these accounts,

   pdbedit -L -v | grep -i mac

shows no such entry.

What goes wrong?
Samba 3.5.7

Viele Gruesse!
Helmut