group file: define groups expected by udev

udev-182 requires several groups to be resolvable at udev startup, including disk, cdrom, floppy, tape, audio, video, lp, tty, dialout, and kmem. Only some of these are in the default skeleton's group file, So let's add the missing groups, and plugdev too.

This avoids getting these logs in /var/logs/messages:

Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'dialout' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'kmem' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'video' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'lp' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'floppy' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'cdrom' unknown
Jan  1 00:00:08 buildroot daemon.err udevd[37]: specified group 'tape' unknown

---
 system/skeleton/etc/group |    8 ++++++++
 1 file changed, 8 insertions(+)

index 8fc486d..864d1db 100644
@@ -5,10 +5,18 @@ sys:x:3:
 adm:x:4:
 tty:x:5:
 disk:x:6:
+lp:x:7:
+kmem:x:9:
 wheel:x:10:root
+cdrom:x:11:
+dialout:x:18:
+floppy:x:19:
+video:x:28:
 audio:x:29:
+tape:x:32:
 www-data:x:33:
 utmp:x:43:
+plugdev:x:46:
 staff:x:50:
 lock:x:54:
 haldaemon:x:68:

1.7.9.5

Not tested or anything, but I agree with the principle and the patch looks
good.

Regards,
Arnout

Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
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