- luv-main - luv.asn.au

jpeg file weirdness
by Brian May 27 Mar '12

27 Mar '12

Hello, I have an Apache server that serves a large static jpeg file. It originally came from a scanned photo. Most programs display this fine, including Firefox and Chromium that come with the latest Ubuntu. If I look at the file, I can't see any signs of missing regions or other corruption (not including spots from the original scanned image of course). Firefox under windows displays a message that the image cannot be displayed due to errors. Android 2.3.4 running on my Galaxy S2. says "An internal server error occurred. Please try again later." which is nonsense, as the apache log file says the server provided the file without errors. Programs like Gimp, gthumb, and display all seem to load the file ok. Any ideas? -- Brian May <brian(a)microcomaustralia.com.au>

5 7

Unable to install Linux (Debian, Ubuntu and Mint) on to laptop
by Tim Lyth 27 Mar '12

27 Mar '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I have tried to get the installation process for each of the three distros mentioned in the subject to install on to my Laptop. Ubunutu and Mint both fail when trying to modprobe hardware just after detecting the hard drives. Debian (using the NetInst 6.0.4 CD) gets in to the installer but can't detect either the GigE network card nor then Wifi card that are in my laptop. The GigE card is an Atheros AR8151 NIC. I've googled for suggestions, it appears that the 'atl1c' and/or 'atl1e' driver should do it, but the version of both included on the Debian install CD doesn't help the installer detect the NIC. I've not yet started on trying to figure out the WiFi card, as I was hoping to get the NIC working, install Linux and then build a custom kernel with the WiFi driver I need. The Debian NetInst CD runs kernel 2.6.32, but does offer me the option of installing modules off removable media. What I don't know is what files, file names, and the like I'd need to have on a USB memory stick to do that. And then I'd also need to actually get the required files. The Atheros NIC uses VENDOR ID: 1969 and DEVICE ID: 1083. I am tempted to install Virtualbox on to my laptop, install Linux in there, and then build a custom kernel with the correct drivers, but I would prefer to avoid that if possible. Can anyone assist me, by providing a link to the appropriate files, so that I can put them on to a USB memory stick and get Debian on to my laptop? Alternatively, advise on other Linux distro's installers which DO support the AR8151 would be appreciated. I would prefer to stick to the Debian family. Regards, Tim Lyth -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPbrUrAAoJEENQGX7xOJnVZDMH/0Qf5/1iRc2KpRDWoiO9Zj68 21puJWYmTHOajmNVbC9urfBYemJClXjmgxX+xFTLJf/VVPNDVRHtAC17a+vNSGYI fyVwT3L5UuTXWAAkDzk8Y9J0htFlyiKQr7AQXFQBXHYCMxuzVwd8Y3iN3TbQw+o2 pxy5IRXRWxYSRJ9US+/NM0CPpo5MxUaE4/UDUp0gML0IttTCrEc8kZjzsUoNYXgC EZoXIiKBcTH7nCuSiCpqxsoG2DKJ30UE8+kvJeuvtM87YGzvM0JNevDDkbqhEpBg RUmPykGotC6Iai5RvEOLPwU+DCgzxb4m9VsQ7KuATn8sx3rMyFW85o3/tlZB9W8= =4hCp -----END PGP SIGNATURE-----

5 7

XBMC, lirc, remotes, harmony?
by Brett Pemberton 26 Mar '12

26 Mar '12

Hi, I have a pretty simple remote setup that I wanted to replace with a Harmony 650, as they were on special. However I haven't been able to get it going, since I've been working off many partial tutorials. Wondering if anyone here has some advice. I'm running XBMC Eden on Ubuntu Oneiric. I have a similar desktop I'm testing this new remote on, with the goal of switching it over on the actual HTPC once I have a working setup. I have 3 receivers to choose from. 1) A $20 'mce compatible' remote I got from Dick Smith. It just sends keyboard events, which work great right now with XBMC, no need for lirc. 2) A TwinHan receiver, as documented here: http://www.doctort.org/adam/general/update-on-twinhan-remote-for-mythbuntu-… I believe it's quite flakey. I did get it to work using lirc as documented on that webpage, but it broke on an upgrade at one point, hence replacing it with the system above. 3) A HP OVU400102, which I thought from reading was the most compatible with the Harmony, and setup would be a piece of cake. It hasn't been. As I said, I've found many 'partial' tutorials, mostly people posting on XBMC forums with similar setups. I've run dpkg-reconfigure lirc more times than I can count, hand edited hardware.conf too many times, laughed at: lircd-0.9.0[8283]: you are using an obsolete devinput config file: Success lircd-0.9.0[8283]: get the new version at http://lirc.sourceforge.net/remotes/devinput/lircd.conf.devinput: Success this a few times. Right now, I can't even get irw to spit out keycodes. Has anyone been in a similar situation? - What should I configure the Harmony device as? A generic MCE remote? The reciever in question? - How do I configure the reciever in lirc? Generic devinput? A specific reciever? And this is before I then get to trying to match up keycodes in XBMC to get it all talking properly. Any advice? cheers, / Brett

1 0

an Introduction to Android
by Russell Coker 24 Mar '12

24 Mar '12

http://etbe.coker.com.au/2012/03/20/introduction-android/ A blog post based on my LUV talk is at the above URL. It has links for all the apps. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

1 0

comparing bulk files
by James Harper 23 Mar '12

23 Mar '12

I have just finished recovering the data from a failing NT4 installation. The dd took _ages_ but reported no i/o errors, but booting failed with a checksum failure and investigation revealed there was a single bit error in a critical file which I subsequently replaced from a download of NT4 sp6a. A single bit error in one file obviously raises the possibility of more such errors... So I have a directory tree of NT4 files in the image I took of the original disk, mounted under Linux, and a flat directory containing the files from service pack 6a, and I want to compare them. There are heaps more files on the disk but these are the only ones I have the originals of. So the disk image fs looks like (for illustrative purposes only - actual filenames may not be correct): /WINDOWS/welcome.exe /WINDOWS/system32/mem.exe /WINDOWS/system32/WINSRV.dll /WINDOWS/file_that_does_not_exist_in_sp6a.dll and the sp6a directory looks like: /sp6a/WELCOME.EXE /sp6a/mem.exe /sp6a/winsrv.exe /sp6a/file_that_does_not_exist_on_installation.dll The files are possibly in different directories, and are possibly different cases. I could write some horribly inefficient shell script to just go through each file in the sp6a directory and find a file with the same name in the /WINDOWS tree and diff it, but maybe there is a better way? This would at least give me a very rough idea of how many errors I might be looking at. Thanks James

7 11

Any practical way to improve glacial page downloads?
by Erik Christiansen 23 Mar '12

23 Mar '12

About every second day now, my ADSL broadband connection turns to sludge. Just loading the ABC news homepage, or BBC, or anything else, takes up to a minute, or sometimes stalls indefinitely. Power cycling the ADSL modem sometimes fixes this problem, and also the times when DNS stops working, i.e. the stall is during "Looking up ...". I just did that now, without improvement, but hitting the "Reload Current Page" icon in firefox sometimes helps. In firefox, I have network.dns.disableIPv6 = "user set boolean true", but that's more for slow "Looking up ..." AIUI, whereas it's glacial page transfers which make the service almost useless at the moment. The link looks more than OK: Connection Status Connected Us Rate (Kbps) 128 Ds Rate (Kbps) 1536 US Margin 27 DS Margin 21 Trained Modulation T1413 LOS Errors 0 DS Line Attenuation 54 US Line Attenuation 31 Peak Cell Rate 301 cells per sec CRC Rx Fast 3 CRC Tx Fast 1 CRC Rx Interleaved 0 CRC Tx Interleaved 0 Path Mode Fast Path /proc/sys/net/core/rmem_default is 112640 /proc/sys/net/core/rmem_max is 131071 Repeated long latencies within Internode's network don't look like they'd help much, but I don't have anything to compare that with. The fact that it seems to have failed to get to the target in the end looks ghastly, and beyond my fixit toolkit. $ traceroute www.linuxcnc.org traceroute to www.linuxcnc.org (69.163.248.64), 30 hops max, 60 byte packets 1 router (192.168.1.254) 1.110 ms 1.313 ms 1.532 ms 2 lns20.mel4.internode.on.net (150.101.212.44) 16.206 ms 22.500 ms 29.324 ms 3 te2-2.cor3.mel4.internode.on.net (150.101.208.65) 36.055 ms 42.548 ms 49.196 ms 4 gi6-0-0.bdr1.mel4.internode.on.net (150.101.210.41) 225.556 ms 231.354 ms 238.425 ms 5 te5-0-0.bdr1.syd6.internode.on.net (150.101.208.106) 250.423 ms 253.429 ms 257.861 ms 6 pos1-0-0.bdr1.lax1.internode.on.net (203.16.213.190) 263.005 ms 269.143 ms 274.384 ms 7 144.223.30.1 (144.223.30.1) 282.270 ms 183.912 ms 183.287 ms 8 sl-st31-la-0-0-3-0.sprintlink.net (144.232.5.100) 187.641 ms 194.321 ms sl-st31-la-0-4-2-0.sprintlink.net (144.232.5.102) 200.827 ms 9 144.232.24.222 (144.232.24.222) 207.956 ms 144.232.9.46 (144.232.9.46) 184.232 ms 144.232.24.222 (144.232.24.222) 190.154 ms 10 te0-2-0-2.ccr22.lax01.atlas.cogentco.com (154.54.29.201) 197.100 ms te0-3-0-5.ccr22.lax01.atlas.cogentco.com (154.54.44.133) 183.526 ms te0 (154.54.29.201) 181.851 ms 11 te8-1.mag01.lax01.atlas.cogentco.com (154.54.28.146) 236.065 ms 238.283 ms 239.757 ms 12 38.122.20.218 (38.122.20.218) 207.794 ms 214.622 ms 183.125 ms 13 ip-66-33-201-114.dreamhost.com (66.33.201.114) 204.995 ms * * 14 * * * ... 30 * * * Unless they're just hosted on dreamhost, and local firewalls are intervening? Just guessing, since we also have this: $ traceroute abc.com.au traceroute to abc.com.au (203.2.218.208), 30 hops max, 60 byte packets 1 router (192.168.1.254) 0.615 ms 0.786 ms 0.987 ms 2 lns20.mel4.internode.on.net (150.101.212.44) 15.727 ms 22.029 ms 28.338 ms 3 te2-2.cor3.mel4.internode.on.net (150.101.208.65) 37.551 ms 43.832 ms 50.405 ms 4 gi6-0-0.bdr1.mel4.internode.on.net (150.101.210.41) 57.123 ms 63.398 ms 70.258 ms 5 te6-0-0.bdr1.mel6.internode.on.net (150.101.210.50) 75.448 ms 81.458 ms 88.341 ms 6 abc.melbourne.pipenetworks.com (218.100.13.6) 107.321 ms 113.388 ms 115.609 ms 7 * * * ... 30 * * * It'd be nice to be able to do something to improve the page transfer speeds on the bad days. Erik -- "Political Correctness is a doctrine fostered by a delusional minority and by the mainstream media which holds forth the proposition that it is entirely possible to pick up a turd by the clean end." - Author unknown.

21 57

xterm mouse pointer colour won't change
by Erik Christiansen 23 Mar '12

23 Mar '12

Environment: Ubuntu 10.04, gnome. After a couple of decades of running xterms with "-fg yellow -bg darkslategrey", I'm finding it harder to locate the mouse pointer when it's over text, even if I thrash the rat, to try to detect the motion. So I added "-ms red" to the xterm invocation. But that little I-like pointer remains white with a black border. I then tried putting this: *XTerm.pointerColor: red into ~/.Xdefaults , but it also had zero visible effect. Maybe it doesn't like red? Let's try: $ /usr/bin/xterm -bg darkslategrey -fg yellow -ms blue Nah. Humph. I'll try again tomorrow, I think. Erik -- Less is more or less more - Y_Plentyn on #LinuxGER

6 17

auto-complete bug in byobu
by Andrew Miller 23 Mar '12

23 Mar '12

Hey guys, I installed Byobu version 5.16 recently and I'm experiencing an annoying bug when I press tab to auto-complete a command. If you're not familiar with it, Byobu is a collection of scripts for screen and tmux. See http://en.wikipedia.org/wiki/Byobu_%28software%29. I'm using it with screen version 4.0.3-r4. I noticed the bug the first time I ran Byobu, so I'm pretty sure Byobu is what's causing it. When I press tab the first few characters of the command appear as normal. However the last character is a circle. The auto-complete options appear below the command as normal. I have no problems entering the command. However, after entering the command backspace and delete no longer work. Each time I press one of these keys it produces a circle character. Here's a photo I took after pressing the backspace key a dozen times: http://i.imgur.com/PsZeL.jpg At first I thought the bug goes away if you detach from Byobu (go to the tty console) and resume. This does happen but later the bug reappears. Any ideas how to fix it? If it's a setting that I have to change, there are a lot of configuration files to read and I don't know what I'm supposed to be looking for. Do you think I should submit a bug report? Thanks --Andrew

1 0

importing dvd's into mythtv
by James Harper 20 Mar '12

20 Mar '12

I'm having a bit more success with importing some dvd's into mythtv, but the 'bad sector' copy protection is painful. dd_rescue allows me to make an image but the deliberate bad sectors turns a 30 minute process into a 1 hour 30 minute process as reading bad sectors is terribly slow. The bad sectors are almost always going to be in a chunk (512 sectors for the Toy Story 3 DVD I'm importing now) so I was wondering if there exists an application to do it a bit smarter, eg if you get 4 bad sectors in a row, jump forward some small number of sectors (eg 64) and keep doing that until a good sector is found, then work backwards to the last bad sector, and then assume that the sectors inbetween are bad. That would dramatically speed up the process... Does such an app exists? Or failing that, a way to make the DVD drive not spend excessive time trying to read corrupt sectors and let the application re-read if it thinks it needs to? I could simply rip the movie out but that requires more effort than I'm prepared to commit to the process (finding the movie file is increasingly difficult as modern dvd's contain phantom files of similar sizes) and I value my time more than I do the $$$ required to store the raw iso's. And the kids enjoy the little dvd games too. Mainly I want to avoid the piles of DVD's that never seem to get put away :) James

2 1

Cobbler, Koan, Juju and Orchestra
by Toby Corkindale 16 Mar '12

16 Mar '12

Hi, So: Cobbler, Koan, Juju and Orchestra I wondered if anyone here is using any of these, and if so, what's your opinion? Do they work as well as advertised? Are they any good when running with local virtual machines rather than on an EC2-compatible cloud? The ideas look good, but it's surprisingly hard to come up with documentation showing how to go from an Ubuntu install to actually having the whole lot working. (The things I did find gloss over important steps, or only get one part going, such as PXE boot, but not juju.. or juju or koan to boot a machine, but not configure it..) Cheers, Toby

3 3