Naultilus error in Truecrypt, not available

Error message using truecrypt in mint mate

When double clicking to open a volume from the Truycrypt gui, it calls nautilus.  Nautilus may not be installed on your system or having it running alongside caja is yuck.  There is no easy way to configure which file manager to be used in the preferences.

Since caja and nautilus have similar command line arguments a simple symbolic link is possible

sudo ln -s /usr/bin/caja /usr/bin/nautilus

WindyCityTech Blogger
WindyWindyCityTech WordPress

How to get file seach working properly in Linux Mate Mint

Whoever decided to cripple the default search (mate-search-tool) should be shot out of a cannon. 
The default search searched through a database which was only update once a day via cron.  This can be evidenced by performing a seach and noticing that little in the way of HDD access is occuring (it not really searching).  Also there is not ovbious way to change the search preferences like in MS windows.
Why perform a search when it does not turn up 100% correct results.  The trade over speed and accuracy is idiotic and pathetic, even the MS file search provides better results.

Here’s how to fix it.

open mateconf-editor and navigate to /apps/mate-search-tool/
check off; disable_quick_search, show_additional_options

now open mate-search-tool and take a look!  Looks nice and actually works, searches attached usb drives and the lot.

references:
man locate
man updatedb

WindyCityTech Blogger
WindyWindyCityTech WordPress

How to get rid of the Banner ‘media contains digital photos’ downloads bluetooth linux mate for ever [solved]

Problem:
When I look in my SD card, caja throws up a stupid blue banner saying “The media contains digital photos”

Cause:
Not entirely sure.  Related to gthumb-import.desktop, which has the text “Import with gThumb” which is in /usr/share/applications/gthumb-import.desktop
Nothing in mateconf-editor to tweak as well.  Bad coding…
Uninstalling  gthumb and any other image program got rid of the banner, but that is not desirable.

Solution:
Open/create the file /home/$USER/.local/share/applications/mimeapps.list and add these lines (reference http://www.freedesktop.org/wiki/Specifications/mime-actions-spec)

[Removed Associations]
x-content/image-dcf=gthumb-import.desktop;
x-content/image-picturecd=gthumb-import.desktop;brasero.desktop;

then update the mime database and killall instances of caja
sudo update-mime-database /usr/share/mime
pkill caja

Do not get happy and try modifying /usr/share/applications/mimeinfo.cache as it will get overwritten without warning.
Reference: http://www.allquests.com/question/1705936/This-media-contains-digital-photos.html

Had a similar problem with the Downloads directory, same stupid blue banner again, “Personal File Sharing”, “You can receive files over Bluetooth into this folder”.
This time I uninstalled the bluetooth sharing agent:
mate-user-share
and did another pkill caja

in mateconf-editor the key /desktop/mate/file_sharing/bluetooth_obexpush_enabled looks suspicious

To all the retards that want these helpful hints, download Ubuntu please or better yet, purchase Windows / Mac OS.

WindyCityTech Blogger
WindyWindyCityTech WordPress

caja Mint 14 mounting /media/user udisks2

New behavior in Mint 14, flash drives, usb drives now mount in /media/$USER/$DEVICE

Caused by the udisks2.  Cannot remove udisks 2 easily because the rest of the system relies on it.

A lot of people are angry about the lack of documentation associated with this major change and rightfully so.

It is still not clearly illustrated why the writer of udisks2 has decided to change the way we look at out personal filesystems but there are a few options.

Fight it:
http://www.linuxmint-fr.org/forum/33-trucs-et-astuces/127919-udisks2retrouver-montage-dans-media-et-non-mediauser.html
(use google translate)
or
Create several symlinks each session, ugly…

Roll with it:
Disable caja from automounting, as it still defaults to /media/$DEVICE
run, mateconf-editor -> search for keys called automount -> disable automounting

Although there are changes to the filesystem, it still works.  Users have th be cautious upgrading their systems as torrent clients and VM on other partitions cannot be found straight away.

WindyCityTech Blogger
WindyWindyCityTech WordPress

Getting PDW working using Virtualbox with linux host, pager decoder, pocsag

PWD is a great program for decoding pager tones, but it works only on windows.

If you are using virtualbox for windows on a Linux Host and have the group permissions set correctly, then you can decode from the sound card.

Of course you will need a scanner with a discriminator tap installed.  Connected to the input of the soundcard.

Tested on Mint Mate.

First, run alsamixer and unmute your sound card input channel, so you can monitor the sound comming in.  In my case, go to Mic and press “M” key to unmute.  The sound sound should be heard on the pc speakers.

Then open up Virtualbox (version 4) and select settings to ensure Also host driver is selected.

Then on the windows client, ensure that mic is selected, and pager tones can be recorded on the client, use sound recorder.

WindyCityTech Blogger
WindyWindyCityTech WordPress

Notes for compiling DSD for Linux Mate, digital sound decoder

DSD is a digital sound decoder.  It captures demodulated data tones from a radio scanner and processes them to decode the signal.  The sound source from the scanner comes from the scanners discriminator tap.  The Discriminator tap is the stage before audio filtering and amplification.  The best place to get data tones from a analouge radio receiver.  It is never 100% due to the analouge domain being digitised by the soundcard, sampling/noise may corrupt the data.

Gathered from various internet sources, works on Mint 13 (Maya).

DSD does not natively install on Linux Mint Mate without a few mods.  This is due to the lack of the oss soundsystem and /dev/dsp.  A patch is required for dsd_audio.c and both the makefiles of DSD and mbelib have to be modified.

Download dsd and mbelib, extract to seperate folders.

Download modified Makefiles from http://www.tarapippo.net/linux/dsd-makefiles.tar.gz
Extract and rename / overwrite the Makefiles for both DSD and mbelib.

Navigate to the mbdlib folder and:
make
sudo make install

Download dsd_audio_patch.txt from the fourm http://forums.radioreference.com/digital-voice-decoding-software/220493-fix-ubuntu-10-10-a.html

Navigate to dsd folder and patch dsd_audio.c with the following command:
patch dsd-1.4.1/dsd_audio.c dsd_audio_patch.txt

Then you can run (./configure not needed) and make command to compile the code.

now to test before installing.

Run DSD using the following command:
padsp — ./dsd -i /dev/dsp -o /dev/dsp

padsp is making the OSS wrapper for dsd.

tip: First, run alsamixer and unmute your sound card input channel, so you can monitor the sound coming in.  In my case, go to Mic and press “M” key to unmute.  The sound sound should be heard on the pc speakers.

WindyCityTech Blogger
WindyWindyCityTech WordPress