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• Why can't Ubuntu find an ext3 filesystem on my hard-drive?

  - by urig

  This question is related to this question: Not enough components to start the RAID array? I'm trying to retrieve data from a "Western Digital MyBook World Edition (white light)" NAS device. This is basically an embedded Linux box with a 1TB HDD in it formatted in ext3. It stopped booting one day for no apparent reason. I have extracted the HDD from the NAS device and installed it in a desktop machine running Ubuntu 10.10 in the hope of accessing the files on the drive. I have followed instructions in this forum post, intended to mount the drive through Terminal: http://mybookworld.wikidot.com/forum/t-90514/how-to-recover-data-from-wd-my-book-world-edition-nas-device#post-976452 I have identified the partition that I want to mount and recover files from as /dev/sd4 by running "fdisk -l" and getting this: Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0001cf00 Device Boot Start End Blocks Id System /dev/sdb1 5 248 1959930 fd Linux raid autodetect /dev/sdb2 249 280 257040 fd Linux raid autodetect /dev/sdb3 281 403 987997+ fd Linux raid autodetect /dev/sdb4 404 121601 973522935 fd Linux raid autodetect// When I try to mount using: "mount -t ext3 /dev/sdb4 /media/xyz" I get the following error: mount: wrong fs type, bad option, bad superblock on /dev/sdb4, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so And "dmesg | tail" shows me: [ 15.184757] [drm] Initialized nouveau 0.0.16 20090420 for 0000:01:00.0 on minor 0 [ 15.986859] [drm] nouveau 0000:01:00.0: Allocating FIFO number 1 [ 15.988379] [drm] nouveau 0000:01:00.0: nouveau_channel_alloc: initialised FIFO 1 [ 16.353379] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro,commit=0 [ 16.705944] tg3 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex [ 16.705951] tg3 0000:02:00.0: eth0: Flow control is off for TX and off for RX [ 16.706102] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 19.125673] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro,commit=0 [ 27.600012] eth0: no IPv6 routers present [ 373.478031] EXT3-fs (sdb4): error: can't find ext3 filesystem on dev sdb4. I guess that last line is the punch line :) Why can't it find the ext3 filesystem on my drive? What do I need to do to mount this partition and copy its contents? Does it have anything to do with the drive being part of a RAID Array (see question mentioned above)? Many thanks to any who can help.

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• Mastering Online Outsourcing

  Two things that have really helped me with my online marketing over the years are having an accountability partner and outsourcing. Also learning how well a solution to some problem will work out when the size of the problem increases. Most people think, I'll develop my business when it is time to develop it. The thing is developing over time can be the downfall of a business if not watched carefully.

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• Drawing a line using openGL does not work

  - by vikasm

  I am a beginner in OpenGL and tried to write my first program to draw some points and a line. I can see that the window opens with white background but no line is drawn. I was expecting to see red colored (because glColor3f(1.0, 0.0, 0.0);) dots (pixels) and line. But nothing is seen. Here is my code. void init2D(float r, float g, float b) { glClearColor(r,g,b,0.0); glMatrixMode(GL_PROJECTION); gluOrtho2D(0.0, 200.0, 0.0, 150.0); } void display() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1.0, 0.0, 0.0); glBegin(GL_POINTS); for(int i = 0; i < 10; i++) { glVertex2i(10+5*i, 110); } glEnd(); //draw a line glBegin(GL_LINES); glVertex2i(10,10); glVertex2i(100,100); glEnd(); glFlush(); } int main(int argc, char** argv) { //Initialize Glut glutInit(&argc, argv); //setup some memory buffers for our display glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB); //set the window size glutInitWindowSize(500, 500); //create the window with the title 'points and lines' glutCreateWindow("Points and Lines"); init2D(0.0, 0.0, 0.0); glutDisplayFunc(display); glutMainLoop(); } I wanted to verify that the glcontext was opening properly and used this code: int main(int argc, char **argv) { glutInit(&argc, argv); //setup some memory buffers for our display glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB); //set the window size glutInitWindowSize(500, 500); //create the window with the title 'points and lines' glutCreateWindow("Points and Lines"); char *GL_version=(char *)glGetString(GL_VERSION); puts(GL_version); char *GL_vendor=(char *)glGetString(GL_VENDOR); puts(GL_vendor); char *GL_renderer=(char *)glGetString(GL_RENDERER); puts(GL_renderer); getchar(); return 0; } And the ouput I got was: 3.1.0 - Build 8.15.10.2345 Intel Intel(R) HD Graphics Family Can someone point out what I am doing wrong ? Thanks.

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• Cleaning Up SQL Server Deployment Scripts

  Although, generally speaking, source control is the truth, a database doesn't quite conform to the ideal because the target schema can, for valid reasons, contain other conflicting truths that can't easily be captured in source control. Dave Ballantyne explains the problems and suggests a solution. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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• How Would a Single Laptop Affect the Past? [Infographic Comic]

  - by Asian Angel

  What kind of impact could a single laptop have if it were introduced to people during key periods in Western history? This infographic comic provides some speculation on what the results could be like… View the Full-Size Version Crave asks: How would you change the past with a laptop? [CNET - Crave] The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos

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• Basic modelling of radar

  - by Hawk66

  I'm currently researching how to model/simulate radar for my naval simulation. Since the emphasis is on modelling ASW or submarines in general, I need only a basic radar model - at least for the beginning. So, does anybody know a resource for such a simple model? The model should take signal strength of the sensor, the size of the target and the terrain (height/ground clutter) into account. Thanks.

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• Enhance That! [Comic]

  - by Asian Angel

  Works perfectly every time, right? Note: You can view the full-size version at the link below if you have trouble reading any of the text… I hate it in espionage TV series when… [Manu Cornet - Bonkers World Blog] Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• LAG function – practical use and comparison to old syntax

  - by Michael Zilberstein

  Recently I had to analyze huge trace – 46GB of trc files. Looping over files I loaded them into trace table using fn_trace_gettable function and filters I could use in order to filter out irrelevant data. I ended up with 6.5 million rows table, total of 7.4GB in size. It contained RowNum column which was defined as identity, primary key, clustered. One of the first things I detected was that although time difference between first and last events in the trace was 10 hours, total duration of all sql...(read more)

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• How To Support Multiple SQL Server Package Configurations in SSIS

  I have several applications that use SSIS packages and I want to be able to store all the configurations together in a single table when I deploy. When a package executes I need a way of specifying the "application" and having SSIS automatically handle the package configuration based on the application. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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• 100 Years of Earthquakes [Wallpaper]

  - by Jason Fitzpatrick

  If loved the tornado-visualization we posted last month, this visualization of a century of earthquakes around the globe will be right up your alley. Courtesy of the same designer behind the tornado tracks, John Nelson of IDV Solutions, this visualization captures 203,186 magnitude 4 and higher earthquakes that occurred between 1898 and 2003. Hit up the link below to grab a wallpaper-size copy from Flickr. Earthquakes Since 1989 by Magnitude [via Smithsonian] How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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• good c++ editor [closed]

  - by romani

  I'm going to teach teenagers some C++ code. I need an editor which is simple and has built in compiler. We tried CodeBlocks but when we installed it in the machines, the text got reversed, I'm not sure what the reaoson is. I would be great if the file size of the editor will not be large. We need just simple features: -Text highlight. -Compile and run. -easy to use -Should run on Windows XP.

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• LAG function – practical use and comparison to old syntax

  - by Michael Zilberstein

  Recently I had to analyze huge trace – 46GB of trc files. Looping over files I loaded them into trace table using fn_trace_gettable function and filters I could use in order to filter out irrelevant data. I ended up with 6.5 million rows table, total of 7.4GB in size. It contained RowNum column which was defined as identity, primary key, clustered. One of the first things I detected was that although time difference between first and last events in the trace was 10 hours, total duration of all sql...(read more)

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• The Seven Sins against T-SQL Performance

  There are seven common antipatterns in T-SQL coding that make code perform badly, and three good habits which will generally ensure that your code runs fast. If you learn nothing else from this list of great advice from Grant, just keep in mind that you should 'write for the optimizer'. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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• The Internet – Then and Now (1996 versus 2011) [Infographic]

  - by Asian Angel

  Use the link below to view the entire infographic. Keep in mind that it may take a few moments for it to load due to its large size. True Hollywood Story: Bipeds and the World Wide Web [infographic] [via TinyHacker] How to See What Web Sites Your Computer is Secretly Connecting To HTG Explains: When Do You Need to Update Your Drivers? How to Make the Kindle Fire Silk Browser *Actually* Fast!

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• Beyond the Great Wall

  This highway is traversed everyday by roughly 338 million Chinese Internet users. With the largest population in the world of 1.3 billion, the increase of Chinese Internet users in the next years would undoubtedly be viably incremental. Reaching out to an established and growing target market of that size and potential at a relatively lower cost of advertising makes for a lucrative ratio.

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• TechEd 2014 Day 1

  - by John Paul Cook

  Today at TechEd 2014, many people had questions about the in-memory database features in SQL Server 2014. A common question is how an in-memory database is different from having a database on a SQL Server with an amount of ram far greater than the size of the database. In-memory or memory optimized tables have different data structures and are accessed differently using a latch free and lock free approach that greatly improves performance. This provides part of the performance improvement. The rest...(read more)

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• Puppy Linux 5.0 Review

  <b>Desktop Linux Reviews:</b> "The .iso file of Puppy Linux 5.0 weighs in at an incredibly petite 128 MB. It's much, much smaller than all of the usual desktop heavyweight distros. But don't let its small size fool you, Puppy Linux 5.0 is anything but an also-ran in terms of functionality and usability."

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• HP and Likewise to release Linux-based storage line

  <b>Cyber Cynic:</b> "Now, HP has partnered with Likewise to bring plug-and-play Linux file servers to mid-size and enterprise businesses"

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• Compiz cube configuration

  - by Keynesian

  Sorry for the stupid question but I am new with Linux (I am using Gnome classic with Ubuntu 12.04) and I cannot set compiz in order to obtain the rotating cube. I have already installed compizconfig-setting-manager and also the extra (and fusion) plugins but: even if I disable the desktop wall and enable cube and rotating cube, nothing happens; even if I change into general settings the number of vertical and horizontal virtual size nothing happens. What I need is (possibly) a step by step answer. Thank you

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• How to change the icon of an aplicatication at the LxPanel on Lubuntu?

  - by Zignd

  After installing Lubuntu 12.10, I decided to install IDLE 3 (from the official Ubuntu repository), but something unexpected happened, its icon gets bigger then the LxPanel and all the another aplications icos, the same happens at the menu when I select it from Menu Programming IDLE 3 Check the image: Note: Wasn't possible to take a printscreen from IDLE at the Menu because the printscreen action ignore the menu when it is opened. Knowing that I'd like to know how to change the icon of an application? Or better, if possible, how to resize this specific icon to normal size?

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• Handling Constraint Violations and Errors in SQL Server

  The database developer can, of course, throw all errors back to the application developer to deal with, but this is neither kind nor necessary. How errors are dealt with is dependent on the application, but the process itself isn't entirely obvious. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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• What parts of functionality should be refactored into a directive?

  - by Sprottenwels

  I am creating an application from legacy code using AngularJS. I wonder what parts of my code should be moved into a directive. For example, iI had thought of moving a table which is used multiple times across the application into a directive. The tables alter from headings and size. Is it worth the effort or even a good practice to turn such things into their own directives or should I create each table in a unique way?

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• Tips on Using Joomla SEO

  Joomla is one of the most popular content management systems on the web along with WordPress. It's much more complicated than WordPress, however, it provides a wide variety of features for small and medium size businesses. While WordPress is more of a blogging tool that can be customized to be a website, Joomla is a true content management system.

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• Best Text-to-Speech Solution for my Website [on hold]

  - by Tim Marshall

  I'm working on the 'Ease of Access' section of my website with the options to increase the font-size displayed on pages to a minimum, invert colours and whatnot. I wish to implement a plugin which, if enabled by the user, to read content on my website. Presumably my best option is a website plugin, however there might be some programming I've not come across which allows the likes of PHP to read content. I'm not entirely sure how this all works.

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• please look my first project [closed]

  - by gökhan

  good night my project is about that Write a program that uses a loop to calculate the first 15 values of the Fibonacci number sequence and store them in an array, call it FibArr, of size 15 DWORDS. Fibonacci number sequence is described by the following formula: Fib(1) = 1, Fib(2) = 1, Fib(n) = Fib(n -1) + Fib(n - 2). Place each value in the EAX register and display it with a call DumpRegs statement.So I dont have an idea about this topic please help me thanks

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