udevd[176]: specified user 'asterisk' unknown

udevd[176]: specified group 'asterisk' unknown

cloud-init running: Mon, 31 Aug 2015 00:19:34 +0000. up 8.91 seconds
 * Starting AppArmor profiles                                            [ OK ]
 * Loading crashkernel...                                                       Memory for crashkernel is not reserved
Please reserve memory by passing "crashkernel=X@Y" parameter to the kernel
Then try loading kdump kernel
                                                                         [fail]
Loading DAHDI hardware modules:
   wct4xxp: done   wcte12xp: done   wct1xxp: done   wcte11xp: done   wctdm24xxp: done   wcfxo: done   wctdm: done   wcb4xxp: done   wctc4xxp
: done   xpp_usb: done
Running dahdi_cfg: done.
landscape-client is not configured, please run landscape-config.
 * Starting Asterisk PBX: asterisk                                       [ OK ]