G2X connecting in developer mode

January 7, 2012
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On Fedora, I was having issues getting my T-Mobile G2X to connect in developer mode.
For sure, I was setting Settings-Applications-USBdebugging to Checked. And when plugging in the device, the SD card (and/or) internal memory space was showing up on the desktop (and the output in /var/log/messages looked equivalent to that from my working G1) [...]

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MythBackend service not starting

November 25, 2011
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/var/log/messages complains :

Nov 24 23:52:54 myth systemd[1]: mythbackend.service: control process exited, code=exited status=235
Nov 24 23:52:54 myth systemd[1]: Unit mythbackend.service entered failed state.

Simple solution (not tested whether this survives reboot) :

# touch /var/run/mythbackend.pid; chown mythtv:mythtv /var/run/mythbackend.pid
# systemctl start mythbackend.service
# grep mythbackend

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PulseAudio default Sink (output)

November 24, 2011
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MythTV suddenly stopped audio (yet again : Every upgrade the reason is different). This time, it appears that the order the audio cards are detected has changed, so the default output has changed…
The following is relevant to the process (haven’t tested this through a reboot, yet) :

$ pacmd help
$ pacmd info  | grep -i [...]

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nginx configuration for uwsgi for Flask

November 18, 2011

/etc/nginx/conf.d/site.conf :

server {
 server_name example.com www.example.com;
 root home/example/flask/static;
 
 location ~ ^/(img|js|css)/ {  # |pi||ext|theme
  root                    /home/example/flask/static;
  add_header              Cache-Control public;
  #expires                 30d;
  #access_log              off;
 }
 location / { try_files $uri @yourapplication; }
 location [...]

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Building uwsgi from src.rpm without Python 3

November 16, 2011

To build uwsgi on Fedora 12 (which has no easy-to-find python3 rpm), run through the rpmbuild process (shown in a previous post in more detail for nginx) and make the following changes :

wget http://kad.fedorapeople.org/packages/uwsgi/uwsgi-0.9.9.2-2.fc15.src.rpm
rpm -ivh uwsgi-0.9.9.2-2.fc15.src.rpm
rpmbuild -bb  ~/rpmbuild/SPECS/uwsgi.spec
yum install python-devel libuuid-devel jansson-devel libyaml-devel ruby-devel python3-devel python-greenlet-devel  lua-devel  ruby
# NB: python3-devel doesn’t exist…
# [...]

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Updating nginx (with uwsgi) for Fedora 12 from src.rpm

November 14, 2011

In order to get access to uwsgi (useful for deploying python flask projects, for instance), one needs a version of nginx > 0.8 or so. But Fedora 12 doesn’t have such a modern version : Here’s how to build it from a src.rpm from a more recent Fedora release.

# First, make sure [...]

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Compiling nginx (with uwsgi) for Fedora 12

October 17, 2011

In order to get access to uwsgi (useful for deploying python flask projects, for instance), one needs a version of nginx > 0.8 or so. But Fedora 12 doesn’t have such a modern version : Here’s how to compile it from source :
Actually, a less hacky approach is to simply back-port (trivially) [...]

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MythTV / lircd updates on Fedora : Hauppauge

July 16, 2011

I’ve been maintaining a PVR350 on an old Dell 2.4GHz since forever.
Latest updates (to MythTV 24.1, and licrd 0.9.0.7) have made big changes. But it’s all working again, including a serial IR blaster. The following is just for my easy reference, and anyone else who now finds their Grey Hauppauge remote [...]

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Ughh : OpenVZ and packet sniffing…

May 28, 2011

Before you attempt to experiment with knockd and/or fwknop, Google around a little for venet0 and packet sniffing.
The virtualization of the interfaces by OpenVZ apparently mangles the IP headers for packet sniffers (like fwknop uses to listen to DROP’d packets). And they then fail to trigger the next step of cleverness (opening the SSH/22 [...]

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Update Ruby on Fedora 12

May 2, 2011

Fedora 12 maxes out it’s Ruby version at 1.8.6. Unfortunately, compass / sass requires 1.8.7. The following steps creates a suitable RPM, and installs it :

# cd ~
# wget http://mo.morsi.org/blog/files/ruby-1.8.7.249-1.fc11.src_.rpm
# yum install rpm-build
# yum install ncurses-devel gdbm-devel tcl-devel tk-devel libX11-devel  autoconf db4-devel byacc bison emacs compat-readline5-devel
# rpmbuild –rebuild ruby-1.8.7.249-1.fc11.src_.rpm
# cd /root/rpmbuild/RPMS/i386/
# rpm [...]

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