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• Unable to recognize hard drive after replacing a drive

  - by Peter Schriver

  I have a Poweredge 830 that I had been using with 1 OS Sata drive and 3 data drives. One of the drives had some failing sectors so I replaced it with a different drive. For some bizarre reason the computer would not reboot so I disconnected all of the media drives and did a clean reinstall on the OS drive. Only the boot drive and one of the media drives are now recognized by my Bios. Drive 0 and 2. Drive 1 and 3 are listed in the Bios as "Unkown Device" Any help would be appreciated I think there may be something wrong with the install. For some reason when I attempt to change the display it says I have a laptop.If you think a reinstall is in order I will try that.

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• How do I install GMSH?

  - by Steph Bredenhann

  I am trying to install Gmsh in 12.04 x64: xxx@sjb-linux:/320/installslinux/gmsh$ sudo apt-get install gmsh Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: gmsh : Depends: libmed1 (>= 3.0.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages. xxx@sjb-linux:/320/installslinux/gmsh$ I have now tried all the advice I could get sudo apt-get -f install sudo apt-get clean with no success, these commands report absolutely no problem. I'll appreciate help.

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• How to discriminate commented code and documentation comments

  - by linquize

  After using version control tools, it is no longer necessary to comment out old code. However, some team members still comment out old code. Therefore, I want to clean them up. I want to mark commented lines which are really comments / documentation, so that every time I do not need to re-read all commented regions. The unmarked lines left are new commented code. How do I achieve this? Any existing tools or need to write on my own? Similar concept: in git, we have 'partial commit' to select some lines to commit. However, the lines marked in 'partial commit' is valid once only.

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• Xen 4.0.1 not booting with device not found error

  - by Disco

  I'm trying to get Xen 4.0.1 run as dom0 on a fresh/clean install of 10.10 desktop (x64). Followed the step by step tutorial at http://wiki.xensource.com/xenwiki/Xen4.0 I have the pvops kernel in /boot, also included the ext4 fs support by recompiling the kernel by : make -j6 linux-2.6-pvops-config CONFIGMODE=menuconfig make -j6 linux-2.6-pvops-build make -j6 linux-2.6-pvops-install Here's my grub entry : menuentry 'Xen4' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 insmod ext3 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set 2bf3177a-92fd-4196-901a-da8d810b04b4 multiboot /xen-4.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all module /vmlinuz-2.6.32.27 root=UUID=2bf3177a-92fd-4196-901a-da8d810b04b4 ro module /initrd.img-2.6.32.27 } blkid /dev/sda1 gives the : /dev/sda1: UUID="2bf3177a-92fd-4196-901a-da8d810b04b4" TYPE="ext3" My partition shemes is : /boot (ext3) / (ext4) Whatever option i've tried i end up with : mounting none on /dev failed: no such file or directory And message complaining that it cannot find the device with uuid ... It's taking my hairs out, if somone has a clue ...

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• How to Make and Install an Electric Outlet in a Cabinet or Desk

  - by Eric Z Goodnight

  If you’re like most geeks, you’re always looking for power—there’s never an outlet where you need one! With this simple how-to, see how you can install an outlet in a desk, cabinet or wherever—right where you need it! It’s simple, fun, and reasonably cheap, so why not install some outlets exactly where you need them? There are kits available to buy online, but these are often quite expensive. See how you can buy off the shelf, stock parts and install an outlet wherever you want to.  How to Make and Install an Electric Outlet in a Cabinet or DeskHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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• subprocess installed post-installation script returned error exit code 1

  - by Laura quintero

  I had installed snort on ubuntu 11.04 and uninstall it because I had problems, to reinstall it leaves a problem: Reading package lists ... done Building dependency tree Reading state information ... done Calculating upgrade ... ready 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. 0 B will be used for additional disk space after this operation. Do you want to continue [S / n]? s Configuring snort (2.8.5.2-9.1) ... * Stopping Network Intrusion Detection System snort * - No running snort instance found * Starting Network Intrusion Detection System snort [fail] invoke-rc.d: initscript snort, action "start" failed. dpkg: error processing snort (- configure): subprocess installed post-installation script returned error exit code 1 Errors were encountered while processing: snort E: Sub-process / usr / bin / dpkg Returned an error code (1) any solution? Commands allready used apt-get clean apt-get remove snort sudo apt-get dist-upgrade dpkg - remove - force-remove-reinstreq snort and nothing.

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• How To Boot 10 Different Live CDs From 1 USB Flash Drive

  - by YatriTrivedi

  Ever get the urge to try out a bunch of Linux distros at once? Maybe you’re hosting a Linux installation party. Here’s an easy way to get a bunch of Live CDs working from a single thumb drive Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC Tune Pop Enhances Android Music Notifications Another Busy Night in Gotham City Wallpaper Classic Super Mario Brothers Theme for Chrome and Iron Experimental Firefox Builds Put Tabs on the Title Bar (Available for Download) Android Trojan Found in the Wild Chaos, Panic, and Disorder Wallpaper

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• Why ubuntu does not use the kernels installed by automatic update?

  - by Guillaume Coté

  I used the script describe in this question to list the kernel installed on the computer : How do I to remove or hide old kernel versions, to clean up the boot menu? In the 3.2.0, I have 33, 34, 35, 36, 37, 38, 39, 41, 43, 44, 45 and 48. I would expect to be running 3.2.0-48 after a reboot, but I am still running 3.2.0-32. Why the kernels installed by auto update are not used? [I am running 12.04 LTS] /boot/grub/menu.lst was modified for the last time June 16 2013, it contains 3.2.0-32-generic 2.6.32-45-generic 2.6.32-44-generic 2.6.32-43-generic A recovery for each of those and a memtest. I would have expected the kernel between 3.2.0-33 to 3.2.0-48 to be in this file before 3.2.0-32.

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• The How-To Geek Guide to Audio Editing: The Basics

  - by YatriTrivedi

  Ever get the urge to edit some audio but you’re not sure where to start? Settle in with this HTG guide to the free audio editor Audacity that’s written for beginners but caters to geeks of all levels. Note: this is the first article in a multi-part series that we’ll be covering over the next few weeks Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC Tune Pop Enhances Android Music Notifications Another Busy Night in Gotham City Wallpaper Classic Super Mario Brothers Theme for Chrome and Iron Experimental Firefox Builds Put Tabs on the Title Bar (Available for Download) Android Trojan Found in the Wild Chaos, Panic, and Disorder Wallpaper

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• Solid principles vs YAGNI

  - by KeesDijk

  When do the SOLID principles become YAGNI? As programmers we make trade-offs all the time, between complexity, maintainability, time to build and so forth. Amongst others, two of the smartest guidelines for making choices are in my mind the SOLID principles and YAGNI. If you don't need it; don't build it, and keep it clean. Now for example, when I watch the dimecast series on SOLID, I see it starts out as a fairly simple program, and ends up as a pretty complex one (end yes complexity is also in the eye of the beholder), but it still makes me wonder: when do SOLID principles turn into something you don't need? All solid principles are ways of working that enable use to make changes at a later stage. But what if the problem to solve is a pretty simple one and it's a throwaway application, then what? Or are the SOLID principles something that always apply? As asked in the comments: Solid Principles YAGNI

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• Are there any books dedicated to writing test code? [on hold]

  - by joshin4colours

  There are many programming books dedicated to useful programming and engineering topics, like working with legacy code or particular languages. The best of these books become "standard" or "canonical" references for professional programmers. Are there any books like this (or that could be like this) for writing test code? I don't mean books about Test-Driven Development, nor do I mean books about writing good (clean) code in general. I'm looking for books that discuss test code specifically (unit-level, integration-level, UI-level, design patterns, code structures and organization, etc.)

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• How to get rid of spam that sends from clients own email address?

  - by MeltingDog

  I've Googled everywhere for a solution for this, but though the same issue appears to be happening to a lot of people, I havent found anything that helped. Several of my clients are receiving loads of spam emails with the senders email being their own. The emails subject line is: Environmental corporation searching for representatives worldwide. The emails are not being sent from any scripts in the sites and all the code appears clean. I have also updated the sites CMS. Would anyone know how to get round this issue? Any help is appreciated!

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• Add Historic Elegance to Your Desktop with Castles of Europe Theme for Windows 7

  - by Asian Angel

  Do you love the historic beauty of old-world castles? Then you will definitely want to grab a copy of the Castles of Europe theme for Windows 7. The theme comes with 21 gorgeous wallpapers showcasing medieval ruins, Gothic Revival castles, chateaus, fortresses, and castillos from all across Europe. Download the Castles of Europe Theme [via The Windows Club] Bonus Want some awesome looking icon sets to mix and match with this theme? Then browse on over to look through our Desktop Fun: Medieval Theme Customization Set post! How to Make and Install an Electric Outlet in a Cabinet or DeskHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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• Android: debug certificate expired error

  - by Bill Osuch

  I started up Eclipse today, created a new project, and immediately had an error before I had changed a single line: Error generating final archive: Debug Certificate expired on 11/12/11 When installed, the Android SDK generates a "debug" signing certificate for you in a file called "debug.keystore". Eclipse uses this certificate rather than forcing you to create a new one for every project. In older versions of Eclipse, the certificate was only valid for 365 days, but as I understand it the default has been changed to 30 years in newer versions. If for whatever reason you don't want to upgrade Eclipse, you can manually delete the certificate to for Eclipse to generate a new one. You can find the location in Preferences -> Android -> Build -> Default debug keystore (mine was in C:\Users\myUserName\.android\); just delete the "debug.keystore" file, then go back into Eclipse and Clean the project to generate a new file.

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• Can non-IT people learn and take advantage of regular expressions? [closed]

  - by user1598390

  Often times, not-IT people has to deal with massive text data, clean it, filter it, modify it. Often times normal office tools like Excel lack the tools to make complex search and replace operations on text. Could this people benefit from regexps ? Can regexp be taught to them ? Are regular expressions the exclusive domain of programmers and unix/linux technicians ? Can they be learned by non-IT people, given regexps are not a programming language? Is this a valid or achievable goal to make some users regexp-literate through appopriate training ? Have you have any experiences on this issue? and if so, have it been successful ?

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• Game-a-Week One Completed

  - by Matt Christian

  Last night I finished my Game-a-Week One and felt and extreme sense of accomplishment with what I finished in a single week. I removed all traces of the JigLibX code since it wasn't working properly due to my implementation and got my collision working thanks to some BoundingSpheres and Riemer's tutorials.  However, since the characters are Corndogs a rectangle bounding box would have made more sense although the bullets are only able to move forward currently. While developing it in a week was a challenge, developing it in a week while maintaining proper coding standards and clean, reusable code was damn near impossible.  It's possible my next step will be to either refactor it or move onto Game-a-Week Two. I will post a link to the game ZIP in the future.

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• How do I fix "malformed line" errors in sources.list?

  - by david

  I had problems with my movie player. The sound was fine but the picture seemed to hesitate or stick or pause every few seconds so I was looking for some help on how to do this. I tried to install a command in the terminal and got this message: E:Malformed line 68 in source list /etc/apt/sources.list (dist parse) Can someone tell me how to fix this problem. I cannot open the software center or the update manager. The only other option I can think of is to wipe everything out and do a clean install. Thank you.

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• Understanding Photography Lighting with a Single Egg [Video]

  - by Jason Fitzpatrick

  In this informative video, veteran photographer Joe Edelman demonstrates the basics of photography lighting with a humble egg. An egg is an excellent shape for experimenting with and studying lighting because the curved surfaces provide a nice clean gradient to study how the light wraps and falls as you move around the light source. Check out the video above to see Edelman’s full demonstration of the humble egg as a photography teaching tool. [via DIY Photography] The Best Free Portable Apps for Your Flash Drive Toolkit How to Own Your Own Website (Even If You Can’t Build One) Pt 3 How to Sync Your Media Across Your Entire House with XBMC

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• Use Your PC to Keep Yourself Entertained While Traveling for the Holidays

  - by Justin Garrison

  Staying connected may be hard no matter what network you are on, and in flight Wi-Fi isn’t pervasive enough to count on. Here are tips and tricks to keep yourself entertained when unplugged and traveling. Image Via MarinaAvila Latest Features How-To Geek ETC How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Is Your Desktop Printer More Expensive Than Printing Services? 20 OS X Keyboard Shortcuts You Might Not Know HTG Explains: Which Linux File System Should You Choose? HTG Explains: Why Does Photo Paper Improve Print Quality? Ubuntu Font Family Now Available for Download Oh No! WikiLeaks Published Santa Claus’s Naughty List [Video] Remember the Milk Now Supports HTTPS Encryption for the Entire Session MTCrypt Is an Efficient Front End for Mounting TrueCrypt Volumes 10 Things You Should Do with Your New Android Phone Walking Through the Park on a Snowy Night Wallpaper

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• How to get windows back? Lubuntu?

  - by Jon

  I installed lubuntu and I don't like it. I did a clean install to lubuntu rather than making it dual. Now when I want to go back to Windows it won't work. I put the Windows Vista CD in and it won't load. It just loads lubuntu back. I know for a fact that the CD works just fine. I don't know what to do? I did a little research and it says I deleted the windows loader or the partition. Can someone help me?

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• 12.10 Booting Into Variations Of Blank Screen

  - by user93954

  I've been running the Ubuntu 12.10 beta since about a month before the final release with almost no problems. However since the day of release (I'm assuming an update has caused this) I have had problems booting into the actual GUI interface. Trying to get it to work is just a case of hard shutting down until it works, but for most of the time I need to battle with various different kinds of black screens. These include a plain black screen, a flashing line and a flashing line that doesn't fit the resolution. Nine times out of ten the cursor will be displayed over these. It also sometimes manages to boot into Ubuntu, albeit text mode or sometimes it loads GRUB which it isn't setup to do. If anyone could help out with this it'd be great. I really, really don't want to have to go through yet another clean installation. Cheers.

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• What counts as reinventing the wheel?

  - by dsimcha

  Do the following scenarios count as "reinventing the wheel" in your book? A solution exists, but not in the language you want to use, and existing solutions can't be interfaced with the language you want to use in a clean, idiomatic way. In principle you could get an existing library to do what you wanted with heavy modification, but you think it would probably be easier to just start from scratch. What you're writing has the same one-line description as stuff that's already been done, but you're targeting a different niche. For example, maybe your problem has been solved a zillion times before, but in a way that's inefficient for large datasets and your code works well for large datasets.

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• ThinkPad fan control via procfs

  - by asebian

  My ThinkPad W500 used to crash sometimes under heavy load because the automatic control is not speeding up the fan far enough. But I was able to disengage the fan and let it run at full speed in Ubuntu 10.10. But this does not work in my new nice and shiny Ubuntu 11.10. Have a glimpse at fan control device. % ls -l /proc/acpi/ibm/fan -rw-r--r-- 1 root root 0 2012-03-18 15:46 /proc/acpi/ibm/fan % cat /proc/acpi/ibm/fan status: enabled speed: 3056 level: auto Now become super user in a fresh and clean environment and send control sequence. % exec sudo env -i bash -l $ echo 'level disengaged' >/proc/acpi/ibm/fan bash: echo: write error: Invalid argument What did I miss? Thanks for suggests.

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• Can't enable Bluetooth 13.10

  - by user205872

  I'm a new user to Ubuntu. I previously installed Xubuntu 13.04 on my Compaq nx8420 and was able to use Bluetooth with no issues. I recently performed a clean install of Ubuntu 13.10 (not Xubuntu), and now can't enable bluetooth. I go to the default Bluetooth app, move the slider to 'On' and it slides straight back to 'Off'. Do I need to install any extra packages or use an alternative app to get Bluetooth working? I can't think of a reason why it would work in Xubuntu 13.04, but not Ubuntu 13.10. Thanks in advance for any help. Zac

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• Desktop Fun: Heroes of DC Comics Wallpaper Collection

  - by Asian Angel

  DC Comics has a great line-up of super hero characters and we have gathered together some of DC’s finest for you in today’s collection. Give your desktop super powers with our Heroes of DC Comics Wallpaper collection. Note: Click on the picture to see the full-size image—these wallpapers vary in size so you may need to crop, stretch, or place them on a colored background in order to best match them to your screen’s resolution. How to Make and Install an Electric Outlet in a Cabinet or DeskHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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