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[MeQuerSat <903403@xxxxxxxxxxxxxxxxxx>]

Why is network-manager installed on a system running Server?

I preferred to just use /etc/networking/interfaces too, but I need
NetworkManager because of it's integration with other apps.

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https://bugs.launchpad.net/bugs/903403

Title:
  Enabling Hotspot results in loop, which crashes DE

Status in “network-manager” package in Ubuntu:
  Incomplete

Bug description:
  1) Ubuntu 11.10 x64 Server (Kernel 3.0.0.14)
  2) network-manager 0.9.1.90-0ubuntu5
  3) A working AccessPoint, so I could connect to it with other wifi devices.
  4) An AP that gets turned on, then crashes directly, gets re-enabled again and crashes again. NetworkManager tries to re-enable the AP so quickly that it creates a never ending loop. When this happens the whole Desktop freezes and only a force-reboot followed by booting into recovery mode *and* doing "sudo rm -R -f /etc/NetworkManager/" makes sure this doesn't happen again on the next login.

  At the moment I'm using the following setup with hostapd, which does give a working AccessPoint:
  ip a a 10.0.0.1/24 dev wlan0
  echo 1 > /proc/sys/net/ipv4/ip_forward
  iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
  hostapd /etc/hostapd/hostapd.conf

  Network card is well supported:
  03:01.0 Network controller: Atheros Communications Inc. AR922X Wireless Network Adapter (rev 01)
  --- 
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  CRDA:
   country CN:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5735 - 5835 @ 40), (N/A, 30)
  DistroRelease: Ubuntu 11.10
  Gconf:
   
  InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  IpRoute:
   default via 94.209.152.1 dev eth0  proto static 
   default via 94.209.152.1 dev eth0  metric 100 
   94.209.152.0/21 dev eth0  proto kernel  scope link  src 94.209.154.68  metric 1 
   192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1
  Keyfiles: Error: [Errno 2] No such file or directory
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  Package: network-manager 0.9.1.90-0ubuntu5
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.0.0-14.23-server 3.0.9
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  oneiric
  Uname: Linux 3.0.0-14-server x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare
  modified.conffile..etc.NetworkManager.NetworkManager.conf: [deleted]
  modified.conffile..etc.NetworkManager.dispatcher.d.01ifupdown: [deleted]

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