[Samba] usrmgr: group not found.

[Asbjørn Morell]

I don't have a Users or Administrators group.. username map is not used.
 cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/bin/false
daemon:x:2:2:daemon:/sbin:/bin/false
adm:x:3:4:adm:/var/adm:/bin/false
lp:x:4:7:lp:/var/spool/lpd:/bin/false
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/bin/false
news:x:9:13:news:/usr/lib/news:/bin/false
uucp:x:10:14:uucp:/var/spool/uucppublic:/bin/false
operator:x:11:0:operator:/root:/bin/bash
man:x:13:15:man:/usr/share/man:/bin/false
postmaster:x:14:12:postmaster:/var/spool/mail:/bin/false
cron:x:16:16:cron:/var/spool/cron:/bin/false
ftp:x:21:21::/home/ftp:/bin/false
sshd:x:22:22:sshd:/dev/null:/bin/false
at:x:25:25:at:/var/spool/cron/atjobs:/bin/false
squid:x:31:31:Squid:/var/cache/squid:/bin/false
gdm:x:32:32:GDM:/var/lib/gdm:/bin/false
xfs:x:33:33:X Font Server:/etc/X11/fs:/bin/false
games:x:35:35:games:/usr/games:/bin/false
named:x:40:40:bind:/var/bind:/bin/false
mysql:x:60:60:mysql:/var/lib/mysql:/bin/false
postgres:x:70:70::/var/lib/postgresql:/bin/bash
nut:x:84:84:nut:/var/state/nut:/bin/false
cyrus:x:85:12::/usr/cyrus:/bin/false
vpopmail:x:89:89::/var/vpopmail:/bin/false
alias:x:200:200::/var/qmail/alias:/bin/false
qmaild:x:201:200::/var/qmail:/bin/false
qmaill:x:202:200::/var/qmail:/bin/false
qmailp:x:203:200::/var/qmail:/bin/false
qmailq:x:204:201::/var/qmail:/bin/false
qmailr:x:205:201::/var/qmail:/bin/false
qmails:x:206:201::/var/qmail:/bin/false
postfix:x:207:207:postfix:/var/spool/postfix:/bin/false
smmsp:x:209:209:smmsp:/var /spool/mqueue:/bin/false
portage:x:250:250:portage:/var/tmp/portage:/bin/false
nobody:x:65534:65534:nobody:/:/bin/false
dhcp:x:101:407:added by portage for dhcp:/var/lib/dhcp:/bin/false
atm:x:1000:100::/home/atm:/bin/bash
winxp$:x:1001:408:Machine Account:/dev/null:/bin/false
 cat /etc/group
root:x:0:root
bin:x:1:root,bin,daemon
daemon:x:2:root,bin,daemon
sys:x:3:root,bin,adm
adm:x:4:root,adm,daemon
tty:x:5:
disk:x:6:root,adm
lp:x:7:lp
mem:x:8:
kmem:x:9:
wheel:x:10:root
floppy:x:11:root
mail:x:12:mail
news:x:13:news
uucp:x:14:uucp
man:x:15:man
cron:x:16:cron
console:x:17:
audio:x:18:
cdrom:x:19:
dialout:x:20:root
ftp:x:21:
sshd:x:22:
at:x:25:at
tape:x:26:root
video:x:27:root
squid:x:31:squid
gdm:x:32:gdm
xfs:x:33:xfs
games:x:35:
named:x:40:named
mysql:x:60:
postgres:x:70:
cdrw:x:80:
nut:x:84:
usb:x:85:
vpopmail:x:89:
users:x:100:games
nofiles:x:200:
qmail:x:201:
postfix:x:207:
postdrop:x:208:
smmsp:x:209:smmsp
slocate:x:245:
portage:x:250:portage
utmp:x:406:
nogroup:x:65533:
nobody:x:65534:
dhcp:x:407:
machines:x:408:
it:x:409:
  Best regards.
Asbjørn Morell