wayneeseguin

wayneeseguin

Getting u-blox MAX-7C GPS to work with Assisted A-GPS

So you got your u-blox GPS and wired it up only to look at it struggling to get a valid fix? Under less than ideal conditions, it can take a better part of half an hour. That's because unlike your smartphone GPS, it doesn't have the luxury of having downloaded all the auxiliary navigation data (almanacs and the lot) out-of-band, via fast mobile connection. Instead it relies on the satellite's signal itself, which is being transmitted to you at meager 50 bits per second (I'm not missing "kilo" there, it's three orders of magnitude slower than your 2G GPRS connection).

Luckily, the u-blox receivers are fitted with what the company calls "AssistNow" capability and it does exactly the same thing your iPhone does - feeds the GPS with pre-downloaded almanacs, speeding up the acquisition process to mere seconds.

In principle, the process looks easy enough - we just need to download the data, and then push them to the receiver. Sadly, the AssistNow documentat

wayneeseguin

#!/usr/bin/env bash
#
# Usage:
#   release <name>
#   jobs <job name>...
#   packages <package name>...
#   src <src name>...
#
# This currently represents *binary* jobs by default.
# TODO: Add the concept of *script* jobs with the associated adjustments.

wayneeseguin

yum install -y kernel-devel zfs
 fastestmirror
 epel-release-7-2.noarch
 does not update installed package.
 Nothing to do
 fastestmirror
 zfs-release-1-2.el7.centos.noarch
 does not update installed package.
 Nothing to do
 fastestmirror

wayneeseguin

[root@flocker-master ~]# flocker-deploy mongodb-deployment.yml mongodb-app.yml
Traceback (most recent call last):
  File "/bin/flocker-deploy", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 3011, in <module>
    parse_requirements(__requires__), Environment()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 626, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: setuptools>=1.4

wayneeseguin

while (( $# ))
do
  parameter="$1" && shift
  case "${parameter}" in
    (-D|--debug)
      set -x
      ;;
    (-V|--verbose)
      VERBOSE=true
      SILENCE="" 

wayneeseguin

Install PostgreSQL Extension Set

[root@sl2 ~]# sm set install postgresql
  [✔] postgresql head                         

Replication

Setup

postgres@replica$ postgresql replication configure master 10.0.5.211 replica 10.0.5.212

wayneeseguin

postgres=# \dx
                 List of installed extensions
  Name   | Version |   Schema   |         Description          
---------+---------+------------+------------------------------
 plpgsql | 1.0     | pg_catalog | PL/pgSQL procedural language
(1 row)

postgres=# \dx+
      Objects in extension "plpgsql"
            Object Description             

wayneeseguin

# bash based sh version

# partition for swap
if [[ "${MACHTYPE%%-*}" == 'x86_64' ]] # where was '$(arch)' comming from?
then
  SWAPSIZE=$[$(free -m | awk '/^Mem:/{print $2}')*2]

  if (( SWAPSIZE > 4096 ))
  then
    SWAPSIZE=4096

wayneeseguin

Fission for VMWare Fusion with RVM

If you use VMWare Fusion on OSX and would like to control it on the command line then fission by @thbishop is worth trying out!

• https://github.com/thbishop/fission
• http://rubygems.org/gems/fission

Fission is new and only only has a few features but looks very promising to me, I will be keeping an eye on it for one.

Creating an RVM Wrapper for fission