This is on a fresh install of Debian 7.1 XFCE AMD64 on an Optiplex 780.
It's multiarch - i386 added so Skype i386 can be installed.
Skype appears happy, but calls to the Echo / Sound Test Service don't
return my audio.
The simplest manisfestation of this problem is that ALSA capture doesn't
capture anything, but silence. I'm using:
arecord -d 5 --vumeter=mono /tmp/foo.wav
The meter doesn't move, and playing back with:
aplay --vumeter=mono /tmp/foo
produces silence (but playing another .wav file is OK).
In alsamixer, I've maximised all Capture settings, and have set the input
sources (both of them) to "Front Mic" (this _should_ be the correct input
- the Mic is connected at the front and in the playback devices cranking
up "Front Mic" results in the Mic audio going to the headset (i.e.
According to lspci, the audio device is a:
"Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02)"
Curiously, we had the same problem with a completely different machine
earlier this year - all OK but Microphone Capture not working (Debian
installation report at:
We never "solved" that - the workaround was to use a "USB"
headset/microphone (i.e. USB Sound "card").
ls -l *.mkv *.avi *.mp4
The above command will give me errors if I happen to have no .avi files or no
How can I write a command to give a list of all video files and not give an
error if some don't exist? Preferably in bash, but I'm willing to try another
shell if necessary.
As an aside I'm not actually after running ls, the below is what I'm really
trying to do:
for n in *.mkv *.avi *.mp4 ; do
My Main Blog http://etbe.coker.com.au/
My Documents Blog http://doc.coker.com.au/
---------- Forwarded message ----------
From: "linux.conf.au Announcements" <lca-announce(a)lists.linux.org.au>
Date: 27 Sep 2013 16:37
Subject: [lca-announce] lca2014 keynote - Jon Oxer - ArduSat
To: <lca-announce(a)lists.linux.org.au>, <chat(a)lists.lca2013.linux.org.au>, "
For immediate Release.
The linux.conf.au 2014 team are excited to announce our first keynote
speaker - Jonathan Oxer. Jon has agreed to come and present a keynote
Jon has been hacking on both hardware and software since he was a little
tacker. Most recently he's been focusing more on the Open Hardware side,
co-founding Freetronics as a direct result of organising the first Arduino
Miniconf at LCA2010. His books include "Ubuntu Hacks" and "Practical
Jon has been variously referred to as Australia's geekiest man and as a
cyborg-in-progress. As part of his “SuperHouse” home automation series, Jon
has taken keyless entry to an all new level by embedding an RFID tag into
his arm using a vet's chipping tool.
Recently he has been working on ArduSat, a satellite that aims to give
hobbyists, students and space enthusiasts an opportunity to design and run
their own experiments in space. By choosing a standardised platform based
on the hugely popular Arduino hardware design, ArduSat allows anyone to
develop and prototype experiments at home using readily accessible parts
and all based on a simple open source software environment.
Jon will be presenting an overview of the latest developments to the
ArduSat project as part of his keynote presentation during
linux.conf.au2014 in Perth, Western Australia.
linux.conf.au is an annual open source conference organised by Linux
Australia. In 2014 the conference will be held in Perth, Western Australia
from the 6th January to the 10th.
lca-announce mailing list
It would be better if you have the livecd or install cd, but you can also
use other livecd as well e.g. knoppix.
x is the mbr usually points to hd0. y is the partition where your grub
stage 1 is, just press the tab key to auto-complete.
Let us know if it works.
On Fri, Sep 27, 2013 at 9:56 AM, Terry Duell <tduell(a)iinet.net.au> wrote:
> Hello Jay,
> On Fri, 27 Sep 2013 11:47:16 +1000, Jay Amorin <jeeyessos(a)gmail.com>
> try to re-install grub onto your mbr.
>> boot using your distro livecd or rescue mode. some distro would require
>> that you chroot before running grub. then run root (hdx,x) and setup
> I don't have an LMDE 64 bit livecd.
> If I can get a livecd, I assume it will have to have the same version of
> grub. My laptop announces grub version 1.99-27+deb7u1.
> Also, how can I check what the x in hdx should be? I only have the one
> distro installed, and probably used the default installation, so hd1 is
> probably right?
> Terry Duell
Sorry, should have sent this reply to luv
------- Forwarded message -------
On Fri, 27 Sep 2013 11:47:16 +1000, Jay Amorin <jeeyessos(a)gmail.com> wrote:
> try to re-install grub onto your mbr.
> boot using your distro livecd or rescue mode. some distro would require
> that you chroot before running grub. then run root (hdx,x) and setup
I don't have an LMDE 64 bit livecd.
If I can get a livecd, I assume it will have to have the same version of
grub. My laptop announces grub version 1.99-27+deb7u1.
Also, how can I check what the x in hdx should be? I only have the one
distro installed, and probably used the default installation, so hd1 is
My LMDE laptop just went through a huge update, and now can't boot.
Every grub boot option returns "error: no such partition".
There are quite a lot of stories on this, and many suggest using grub
rescue mode, then use "ls" to see what partitions are seen. This doesn't
work, always returning this same error message.
I guess I will have to boot from a rescue disk, but not sure what I then
need to do.
Any help appreciated.
Hi fellow LUVers,
The Australian Government is requesting submissions for a Review of the
Innovation Patent System. Could you make a written submission by 4
October? The review has already show a genuine interest in our plight,
so simply making a brief comment will help convince them to take the
next step. I've prepared the attached no-nonsense guide to help you:
This is perhaps more of a networking question than Linux, but all the
devices involved are running Linux..
I have what is probably a common home setup -- an ADSL modem operating
in "pure bridge" mode, connected by ethernet to a Linux server running
pppd with the PPPoE plugin. Same linux server is providing DNS, DHCP
and NAT for other clients connected via wireless and ethernet.
This setup was running fine for many years with a Billion 7300RA ADSL
modem. I just switched it over to a newer Billion 7800NL modem in the
hope it'd provide better sync speeds on my hopeless phone line. (It
does, with some SNR tweaking)
However for some reason path MTU discovery has completely broken when
using the newer modem.
The primary Linux box is fine, but all clients (whether wired,
wireless *or even virtual*) fail to work unless I manually set their
interfaces to an mtu of 1492.
I'm pretty confused by this -- pppd was setting itself up with a 1492
mtu even on the old modem, and that managed to propagate out just
fine. The only thing that changed was the modem, but that shouldn't
affect this issue.
I'm bamboozled. Could anyone advise me on what could possibly be done
to figure out what has happened?
Or better, a way to fix it?
1) New router was switched back to standalone mode (where it does
pppoe, dhcp, nat etc) and in this mode, all clients worked fine. So
the ADSL link and ethernet ports seem OK.
2) Old router was booted up to verify settings and that stuff works OK
with it. Settings for ADSL line were similar, and stuff does work with
it. (I say settings were "similar" because the two modems have
different interfaces, and the 7800NL has some extra options not
present on the 7300RA, but I don't think they're relevant to this
Thanks in advance,
Turning and turning in the widening gyre
The falcon cannot hear the falconer
Things fall apart; the center cannot hold
Mere anarchy is loosed upon the world
...it didn't really, but...
is anyone still a selinux fanboi after the recent NSA revelations?
if so then (Russell, I'm looking at you :-) why are you still confident
selinux is a good thing and not just something designed to be so
complex or so subtly buggy that the NSA can hide backdoors in it?
there's already been one CVE where only those running selinux are vulnerable
which at the time made me very happy I'd turned selinux off.
Android 4.3 has started using selinux. do we really trust android
vendors to be on top of complex selinux configs or would we be better
off with it err, off?
I doubt I'll be shipping my android roms with selinux on. that used
to be 'cos I don't have the time to get it working and right, but now I
also question its motivation and even the kernel implementation too.
am I wrong?
(yes, I've had a few and yes, this is a troll, but I'd still like to
know if anyone's ever fully read and understood the implications of
every distro selinux rule and every selinux line in the kernel - giving
unaudited power to 3 letter agencies is not a sane way forward...)
Ruxcon is Australia's premier technical computer security conference, held at the CQ Function Centre in Melbourne.
Ruxcon brings together the best and the brightest security talent in the Australia-Pacific region through live presentations, activities, and demonstrations. This year we also feature a fantastic line-up with several high-profile international speakers.
Ruxcon 2013 will be held on the weekend of the 26th of October to the 27th of October. Doors open at 8:00am and the first presentation commences at 9:00am.
There are a limited number of tickets available and they are going very quickly. Please register via the Ruxcon website to ensure that you don't miss out: http://www.ruxcon.org.au/register
For more information, please visit http://www.ruxcon.org.au/speakers
1. BIOS Chronomancy - Jon Butterworth
2. Mining Mach Services within OS X Sandbox - Meder Kydryraliev
3. VoIP Wars: Return of the SIP - Fatih Ozavci
4. Inside Story Of Internet Banking: Reversing The Secrets Of Banking Malware - Sean Park
5. Top of the Pops: How to top the charts with zero melodic talent and a few friendly computers - Peter Fillmore
6. Deus Ex Concolica - Explorations in end-to-end automated binary exploitation - Mark Brand
7. The Art Of Facts - A look at Windows Host Based Forensic Investigation - Adam Daniel
8. AntiTraintDroid - Escaping Taint Analysis on Android for Fun and Profit - Golam 'Babil' Sarwar
9. Amateur Satellite Intelligence: Watching North Korea - David Jorm
10. Payment Applications Handle Lots of Money. No, Really: Lots of It - Mark Swift & Alberto Revelli
11. 50 Shades of Oddness - Inverting the Anti-Malware Paradigm - Peter Szabo
12. Assessing the Linux Desktop's Security - Ilja van Sprundel
13. .Net Havoc - Manipulating Properties of Dormant Server Side Web Controls - Shay Chen
14. Cracking and Analyzing Apple iCloud Protocols: iCloud Backups, Find My iPhone, Document Storage - Vladimir Katalov
15. Espionage: Everything Old is New Again - Kayne Naughton
16. Buried By Time, Dust and BeEF- Michele (Antisnatchor)
17. Under the Hood of Your Password Generator - Michael Samuel
18. Wireless Wickedness - Steve Glass & Matt Robert
19. BYOD PEAP Show: Mobile Devices Bare Auth - Josh Yavor
20. Top of the Pops: How to top the charts with zero melodic talent and a few friendly computers - Peter Fillmore
21. A Beginner's Journey Into Hardware Hacking - Silvio Cesare
22. Underground: The Julian Assange story (with Q&A session) - Suelette Dryfus & Ken Day
23. Introspy : Security Profiling for Blackbox iOS and Android - Alban Diquet & Marc Blanchou
24. 5 more presentations to be announced.
Videos from previous Ruxon's can be found here: http://www.youtube.com/ruxcon
Hope to see you there,
Ruxcon 2013 Staff