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• Why using swap file over a SMB/NFS mounted filesystem is not possible in Linux?

  - by Avio

  I'd like to use another machine's unused RAM as swapspace for my primary Linux installation. I was just curious about performance of network ramdisks compared to local (slow) mechanical hard disks. The swapfile is on a tmpfs mountpoint and is shared through samba. However, every time I try to issue: swapon /mnt/ramswap/swapfile I get: swapon: /mnt/ramswap/swapfile: swapon failed: Invalid argument and in dmesg I read: [ 9569.806483] swapon: swapfile has holes I've tried to allocate the swapfile with dd if=/dev/zero of=swapfile bs=1024 (but also =4096 and =1048576) and with truncate -s 2G (both followed by mkswap swapfile) but the result is always the same. In this post (dated back to 2002) someone says that using a swapfile over NFS/SMB is not possible in Linux. Is this statement still valid? And if yes, what is the reason of this choice and is there any workaround to have this working?

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• Should I indicate that the user exists or was deleted on the error page?

  - by animuson

  On an ordinary public website, the user's profile is always publicly visible to all visitors (such as Stack Overflow), where they can limit certain pieces of information via privacy settings or just removing the information. Now the user has decided to delete their account (in my case deactivate) so that their account doesn't technically "exist" anymore. The way my system is set up, when their account is deactivated, their username for any content connected to them just becomes "Anonymous User" as if it were a guest that posted. I feel like this could cause some confusion for other users. I'm also concerned about what kind of error to display when someone attempts to view their profile page. My gut tells me to just display a standard 404 page to hide the fact that they ever existed, but then you also have to consider that, since usernames must be unique, anyone can go to the register page and type in the username to see if it really exists or not. I have a similar problem with another website, which gives users the ability to hide their profiles from the public and only allow registered users to view it. Again it's with the dilemma of what kind of error message to display when an unregistered users attempts to view their profile with invalid permissions. So, would it be acceptable to display basic errors such as "user has been deactivated" or "you must be logged in to view this profile" in order to give other visitors some idea of why the page can't be displayed, or should I attempt to cover the user's privacy a little and just display a standard 404 without indicating in any way that the user might exist? Are there any other issues that I'm not realizing about either route? To go back to the beginning, should I even bother changing the user's name to "Anonymous User" when their account is deactivated? Would it be acceptable to just display a non-linked version of their username in place of the normal linked display name?

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• MS Access 2007 end user access

  - by LtDan

  I need some good advise. I have used Access for many years and I use Sharepoint but never the two combined. My newly created Access db needs to be shared with many users across the organization. The back end is SQL and the old way to distribute the database would be placing the db on a shared drive, connecting their PC ODBC connections to the SQL db and then they would open the database and have at it. This has become the OLD way. What is the best (and simpliest) way to allow the end users to utilize a frontend for data entry/edit reporting etc. Can I create a link through SharePoint and the user just open it from there. Your good advise is greatly approciated.

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• Can't log-in anymore

  - by Awake Zoldiek

  I installed Ubuntu x64 12.04 Desktop LTS on my new laptop three days ago. Of course when I installed it I did an "apt-get upgrade" and a "apt-get update". I modified the .bashrc file to add some aliases but that's about it. Everything went fine I think, but this morning when I tried to connect to my user account, it just simply didn't work. Even when I give the right password, it will send me to a black screen with a few text lines written in white for a second and then back to the log-in screen. When I logged into the guest session, I couldn't shutdown / restart. I tried the "rm /home/MyUsername/.Xauthority" solution after doing a Ctrl + Alt + F1 at the log-in screen. But that didn't work. Does anyone has an idea ? My Ubuntu seems to use Gnome. Thank you a lot in advance ! This question is similar to this one, but their solution didn't help : -- after 12.04 upgrade: can't log in although password is correct

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• Installing Windows from Ubuntu while booting only from the hard drive

  - by WindowsEscapist

  My problem is unrelated to this workaround (the question) here, but the end result is that I cannot change boot order (or use a boot menu) on my laptop. It is currently running Ubuntu 12.04 with a dual-boot to Fedora if anything goes catastrophically wrong with Ubuntu (read "if I mess it up"). I would really like to install Windows 7 (but XP would be fine) on an empty FAT32 partition I have already made because of issues with WINE-emulated programs running more slowly than under Windows. The problem is, I can only boot from my hard drive. I can boot from other devices by removing the hard drive, but this is irrelevant because SATA is non-hotpluggable (I can't plug it back in to install). Is there any way I could boot up a Windows installer CD (or other CDs)? (I know how to keep my Linux distros.) I have both the .iso's and the physical CDs (or can obtain them). This may be unneeded, but just as a disclaimer this is completely legal. The computer belongs to me, I have admin privs, etc. I'm not doing anything shady!

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• Less graphics power all the sudden (Intel HD 3000)

  - by queueoverflow

  I have a Intel Sandy Bridge i5 with the HD 3000 graphics card. I used to be able to play Urban Terror and Nexuiz comfortably with 85 and 60 frames per seconds until mid/end of October 2012, the former even on a full HD display with that many frames. Now I have around 30 to 45 on the smaller laptop screen and around 20 to 30 on the external monitor. Did something happen to Kubuntu 12.04 so that it has less graphics performance than previously? Update I looked into the system monitor and could not detect anything being at the maximum. The four CPU cores were pretty much bored, the 8 GB RAM were filled with maybe 2 GB. And I ran intel_cpu_top and did not notice anything at its limit. See the output. after Kernel bisecting I now did a kernel bisect and tried 3.2.0-23, 3.2.0-27, 3.2.0-29 and 3.2.0-30 and all had full graphics power. Interestingly, I then had full power when I just booted back into the regular 3.2.0-32 kernel. This does not make sense to me …

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• Re-installing Ubuntu without losing files, how to?

  - by moraleida

  Sometime back i bought a second PC to serve as my backup machine, but i've never managed to have it as i would like. Now i want to start over, but i've messed so much with it's disks that i'm kinda afraid to lose something on the way, thus this question. Right now, I have a 1Tb disk partitioned like this (as per GParted): /dev/sda1 (ext4) 346.12Gb - Is almost full, has an old install of Ubuntu 11.10. It no longer boots, ever since i installed Windows7 on /sda3. Everything that matters to me is tucked into /var/www/ all the rest can just go. /dev/sda2 (ext4) 196.45Gb - has an old install of 12.04 and nothing important, it's pretty much empty and also doesn't boot. /dev/sda3 (ntfs) 377.97Gb - is my boot partition with Windows 7, some important files and I'd like to keep it untouched. /dev/sda4 (extended) 10.97Gb - was created when i first installed Ubuntu, i think. In my ideal world, I'd like to safely reinstall Ubuntu from the 12.04 liveUSB and merge sda1 and sda2 without losing any files. Is that possible? How?

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• Wyse Simple Imager. Unable to Create Product Directory

  - by Steve

  I am trying to submit a post on www.technicalhelp.de, but I receive an error: Invalid Session. Please resubmit the form. This happens if I delete temporary internet files and log out and back in, and if I use a different browser, and if I use a proxy browser. Perhaps someone on this forum can help I am trying to push a Wyse device image to a USB thumb drive. The image is on a remote server, and the thumb drive is connected to my desktop PC. I am using Wyse Simple Imager to do this. When I select the following: Product: V90 Image Version: 5.010627.512 Image File: \servername\folder\OLD_Rapport\V90-withusb\9V90.i2d Almost instantly, without attempting any action, I receive the message: WyseImager Unable to Create Product Directory. Add Image Failed I have completely formatted the USB drive with FAT32. It is new out of the fox, and I can create folders in it. How do I fix this?

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• Working with volonteers

  - by JavaCecilia

  I've been engaged as a scout leader in the Scout movement since 1993, working on a local and national level, leading both kids and other scout leaders.Last year, the Swedish Scout Association invited 40000 scouts aged 14-17 years old from 150 countries around the world to go camping for 10 days. I was on the planning team with a couple of hundreds of my closest scout friends and during a couple of years we spent our spare time planning logistics, food, program, etc to give these youths an experience of a life time. It was a big and complex project; different languages, religion (Ramadan was celebrated during the camp) and the Swedish weather were some of the factors we had to take into account. The camp was a huge success, the daily wow factor was measured and people truly had fun and got to know each other. I learnt a lot and got friends around the globe - looking back at the pictures it feels unreal that we managed it.The Java platform as OpenJDK and its' future is a similar project in my mind. With 9 million developers and being installed on 3 bn devices, the platform touches a lot of users and businesses. There's a strong community taking Java into the future, making sure it stays relevant. Finding ways to collaborate in a scalable way is the key to success here. We have the bylaws directing how decisions are made, roles are appointed and how to "level" within the community. Using these, we can then make contributions according to our competence and interest and innovate taking our platform into the future.If you find a way to organize volunteers towards a common goal, solving conflicts, making decisions, dividing the work into manageable chunks and having fun while doing it - there's no end to what you can achieve.

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• Resetting default Input Method in Mac OS 10.6

  - by Tim Visher

  I'm a Dvorak guy. I recently installed a new machine at the inlaws who are not Dvorak people. I stupidly selected Dvorak as my Input Method of choice while installing OS X. Now, all of the users I created default to Dvorak and need to go through the manual process of removing Dvorak as their Input Method of choice and instead choosing U.S. I have no idea how far reaching the implications might be. Could be that any time another user is added they will default to Dvorak. Right now, I'd like to set the default back to U.S. How can I do that? Behaviors I'm looking for include that when the Input Menu is not shown at the Login Screen, U.S. is the keyboard layout. Any future users created should default to U.S. with no Input Menu in the menu bar. Any users created already should have their default layout be U.S. Thanks in advance!

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• Second monitor sometimes will not wake up

  - by peacedog

  My workstation has two monitors and Windows 7 (64bit). Sometimes when I lock my computer and later return and unlock it, the second monitor won't wake up. I have to turn that monitor off and on to get the picture back. They are identical monitors. The "#2" monitor is set as the main display, if that matters. I glanced at the power saving settings but didn't see anything noteworthy, and I'm not sure what I would be looking for (or if that is the right place to look) in the first place. It's not the end of the world but it is annoying. Help?

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• "Disk boot failure" error after installing Windows 7 on SSD

  - by Tony_Henrich

  I have a system with 3 SATA drives which runs fine. Got a new SSD drive and wanted to install a fresh Windows-7 on it. So I removed the boot drive and replaced it with the SSD drive. Installed Windows and when it was done, rebooted and now I get "Disk boot failure. Insert system disk and press enter" error message. I reinstall again and still same message. Removed the SSD and put back the original drive and I got the same message!! I checked the BIOS and things look good. Something is wrong. Two questions: 1- Why isn't the new Windows booting from the SSD? 2- Why isn't the machine booting using the previous working configuration anymore, after removing the SSD? I did connect it during the second Windows installation but it was the last drive in the SATA connector. Would Windows installer mess with its MBR sector?

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• Loign Scren hangs after entering password in Ubuntu 12.04

  - by Ravi

  When I enter my password in the login box nothing happens. It is stucked there. It was running fine earlier. Actually, I installed the package gnome-panel and cairo-dock. Then I logged out and selected gnome classic session. Then I added a ppa from the webupd8.org to install the themes(link). I opened Ubuntu Tweak tool. When I changed the theme to Evolve the whole laptop stopped responding. None of my keyboard and mouse was working. So I was forced to do a forced shutdown. Now after restart I cannot login into ubuntu. I hear a loud sound of my laptop fan when the laptop is stucked. (Probably CPU will be at 100% when it stucked). Please help me. How can I login back to ubuntu? I am using ubuntu 12.04 and have installed all the latest updates..

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• Do you leave Windows Automatic Updates enabled on your production IIS server?

  - by Nobody

  If you were running a 24/7 website on Windows Server 2003 (IIS6). Would you leave the Windows automatic update feature enabled or would you turn it off? When enabled, you always get the latest security patches and bug fixes automatically as soon as they're available, which is the most secure choice. However, the machine will sometimes get automatically rebooted to apply the updates leading to a couple of minutes of downtime in the middle of the night. Also, I've seen rare occasions where the machine does not restart correctly resulting in further downtime. If auto updates are off, when do you apply the patches? I guess you have to use a load balancer with multiple web servers and rotate them out of the production site, apply patches manually, and put them back in. This can be logistically inconvenient when the load balancer is managed by a hosting company. You will also have machines in production that don't always have the latest security patches and you have to routinely spend time deciding which patches to apply and when.

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• solr administration

  - by devrick0

  Does anyone have any notes for an sysadmin supporting solr? I'm looking for anything that might be useful for monitoring & metrics as well as troubleshooting. Some useful links I have found are: /solr/admin/stats.jsp and /solr/admin/analysis.jsp In the logs I have noticed, other than the query, "hits", "status" and "QTime" values. The documentation on what these mean is sparse at least based on the 100+ websites I have checked. QTime appears to be the query time response in milliseconds. Hits is some form of results but I'm not sure exactly what makes that up and I'm not sure about status. Typically I see status come back as "0" but I have seen other numbers such as "5", so my thoughts that it could be either HTTP status codes or a 0 or 1 (good or bad) methodology isn't accurate. All of the documentation I have come across is intended for developers. Any sysadmin-centric documentation would be a big help.

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• Laptop using 14.04 won't get past login GUI

  - by Dave M G

  My laptop was working perfectly yesterday, and now today I can't log in. At first, I was only getting a black screen. However, after following instructions in some questions here on AskUbuntu, I first reinstalled lightdm, and then I had to change the ownership of the file ~/.Xauthority to be my user name. Now, I get the log in GUI screen. However, once I enter my username, it flickers and then comes back to the login GUI. It does not matter if I use Gnome, Unity, or Gnome-Flashback. I don't know why lightdm needed to be reconfigured, or how ~/.Xauthority got changed, but in any case, what is still standing in my way, preventing me from logging in? Update: I have tried deleting the .Xauthority file, and the .profile files in my home directory. It has not changed anything. Logging in as guest also fails to work. The following commands did not work: mv ~/.config ~/.config.BAK mv ~/.cache ~/.cache.BAK Inside .xsession-errors in my home directory, it says: Gdk-CRITICAL: gdk_x11_display_get_xdisplay: assertion 'GDK_IS_DISPLAY (display)' failed

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• Gesture Based NetBeans Tip Infrastructure

  - by Geertjan

  All/most/many gestures you make in NetBeans IDE are recorded in an XML file in your user directory, "var/log/uigestures", which is what makes the Key Promoter I outlined yesterday possible. The idea behind it is for analysis to be made possible, when you periodically pass the gestures data back to the NetBeans team. See http://statistics.netbeans.org for details. Since the gestures in the 'uigestures' file are identifiable by distinct loggers and other parameters, there's no end to the interesting things that one is able to do with it. While the NetBeans team can see which gestures are done most frequently, e.g., which kinds of projects are created most often, thus helping in prioritizing new features and bugs, etc, you as the user can, depending on who and how the initiative is taken, directly benefit from your collected data, too. Tim Boudreau, in a recent article, mentioned the usefulness of hippie completion. So, imagine that whenever you use code completion, a tip were to appear reminding you about hippie completion. And then you'd be able to choose whether you'd like to see the tip again or not, etc, i.e., customize the frequency of tips and the types of tips you'd like to be shown. And then, it could be taken a step further. The tip plugin could be set up in such a way that anyone would be able to register new tips per gesture. For example, maybe you have something very interesting to share about code completion in NetBeans. So, you'd create your own plugin in which there'd be an HTML file containing the text you'd like to have displayed whenever you (or your team members, or your students, maybe?) use code completion. Then you'd register that HTML file in plugin's layer file, in a subfolder dedicated to the specific gesture that you're interested in commenting on. The same is true, not just for NetBeans IDE, but for anyone creating their applications on top of the NetBeans Platform, of course.

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• 1080p HD TV + what is minimum spec pc required to stream HD movie files to it?

  - by rutherford

  I want to stream hi-def (non flash-based) movies from my future minimum spec pc to my network-ready HDTV. What I want to know is a) when streaming from a computer (local wifi network), is the computer's cpu/video/ram resources used to the same extent as it would be if playing back on the computers local screen? If not what are the differences? b) So with streaming hd content what is the minimum spec processor I should go for, if i) only one TV is acting as client ii) two TVs are simultaneous clients.

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• error when using OWA access to mail server exchange 2010

  - by e0594cn

  Suddenly it will come out the below error when accessing the exchange 2010 mail server using OWA after clicking sign in button on initial page? ***The website cannot display the page HTTP 500 Most likely causes: •The website is under maintenance. •The website has a programming error. What you can try: Refresh the page. Go back to the previous page. More information This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying. For more information about HTTP errors, see Help.* Any suggestion? Thanks!

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• How to Downgrade Razor 3 and fix the issue that CSHTML not work in VS10,12 ?

  - by Anirudha

  Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/11/04/how-to-downgrade-razor-3-and-fix-the-issue-that.aspxFew days ago I migrate a project to MVC 4 and suddenly I have seen that MVC project’s cshtml file is no longer working. The problem happen because my project is now based on Razor 3 RC and VS12 doesn’t even have support it. (Remember that VS team will ship support in VS update 4). My migration update it to Razor 3 (which is not related to MVC 4, MVC 4 used old version of Razor 2).   So how to fix the problem. Since VS update 4 in development and MVC 3 support exist in both old Version of VS (10,12) then better to migrate back our Razor to old version so we can use our project in VS 10 or 12. If your project have Razor 3 and it seem that Syntax highlighting doesn’t work for you then I suggest you to try this Nuget package https://www.nuget.org/packages/UpgradeMvc3ToMvc4 Remember that this will not be succeed. What you need to do is delete package folder in your project and now open the packages.config remove all entry of package now.   Now Run this command PM> Install-Package UpgradeMvc3ToMvc4 If this is failed then see what thing make error in console. simply remove the reference and try again. Now run it and see this will work.   After run this you will see that WebGrease Dll have a version number issue. Simply update it to version 1.5.2 and now you have ready your project to run it in .net 4. If you do bin deployment then you don’t need to have installed MVC 4 on server either. Remember that MVC 5 is based on .net 4.5 which simply means you can’t run it in VS10. until VS12 update 4 MVC 5 cshtml page will be work as simple html pages (syntax highlighting and intellisense). Thanks for read my post

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• I need help with Grub and restoring Windows?

  - by Bob Tahog

  I started out with Windows XP and then I installed Zorin (a sub distro of Ubuntu) and then I installed Ubuntu. This was working great. Then I installed Windows 8 on yet another partition and couldn't get into my other OSs. I asked my tech teacher at school how to fix it and she said just clear the partition that I installed Windows 8 on, so I booted onto a live version of Ubuntu and cleared the Windows 8 partition. Okay then I rebooted and it still went into Windows 8 for some reason. So I got back onto live Ubuntu and it turns out Windows 8 partition didn't clear for some reason so I did it again (and I'm positive it was the Windows 8 partition). I still couldn't fix grub but I needed something out of my XP partition so I mounted it on the live Ubuntu and now all the XP partition have are the folders 'Boot', 'Recovery', 'System Volume Information', 'temp' and the files 'bootmgr', 'BOOTNXT', 'BOOTSECT.BAK' and 'Recovery.txt'. Anybody know how to fix this or what I did wrong? Also, if I try booting from my hard drive it shows the Windows and says 'preparing automatic repair' then 'Diagnosing your PC' then restarts. Any and all help is greatly appreciated.

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• Touchpad not working after connecting hdmi cable

  - by user286632

  I had installed Ubuntu 14.04 2 weeks back on my new laptop along side Windows 8. 1. And it was working fine. But yesterday after I connected Ubuntu with my TV using the HDMI cable, the cursor/ pointer stopped working. The pointer is not visible and my touchpad is not working. I connected the hdmi cable with youtube in Firefox. But only the wallpaper was visible on the TV. Also the right click menu, alt tab window, etc was also visible. But the side menu and the Firefox window was not visible. The pointer was visible on the tv and the touchpad was working, I was able to move the pointer. After I removed the HDMI cable, my cursor/pointer disappeared and my touchpad is not responding! ! I tried to restart many times, but still no luck. Its still not visible in the desktop. The pointer is visible in the login screen, but is not responding to the touchpad. I tried to login to my KDE session, there too the pointer is visible but is not responding to the touchpad. It is not moving.

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• Is there a PROPRIETARY driver (NVIDIA or ATI) that actually works with 12.10?

  - by DS13

  NOTE: I see many similar topics on this, but I've tried all their suggestions, and nothing has worked. THE MAIN DIFFERENCE SEEMS TO BE: I always get a black screen with a blinking cursor, while others seem to get through the boot-up and see distorted graphics or just their wallpaper. ISSUE: I do a clean install of Ubuntu 12.10. Boots fine with the “nouveau” graphics driver – graphics (even just menus) are very slow, choppy, and distorted. The three other driver options in Ubuntu (official NVIDIA drivers), all result in a variation of the black screen on boot up. There will be NO access to a command line/GUI in anyway what-so-ever (tried every option recommended out there, but the system is unusable at this stage). I can only reinstall, and try different drivers…and I only ever get one shot at it. QUESTIONS: -Does anyone know of a PROPRIETARY driver that will actually work on 12.10 with a NVIDIA or ATI card? -Should I just buy a newer graphics card to put in as a replacement? MORE INFO: This is my second computer, and I’m just trying to get a working install of Ubuntu on it. I don’t want to put much money into it, as I have seen Ubuntu run great on much older/less capable machines. I’ve got a decent'ish Core2Duo Intel processor (2.13Ghz), 2GB of RAM, 320GB hard drive, 32-bit architecture, and there is no other O/S installed. It appears as if the graphics card (NVIDIA Geforce 7350 LE) is holding me back. TRIED SO FAR: -all drivers available in Ubuntu *all fail -manual install of some different NVIDIA drivers *all fail -also tried installing the generic kernel, Nvidia driver doesn't work in 12.10 *no difference -tried installing 12.04 *same results -every method suggested to at least get a command line after switching to a NVIDIA driver *all fail -UPDATE- Re-tried everything above with a new NVIDIA Geforce 210...same results for everything. -UPDATE #2- Re-tried everything above with a new AMD Radeon HD 6450...installed the proprietary driver from Ubuntu's "Software Sources" menu...EVERYTHING NOW WORKS. See "answer" below for summary.

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• Bulk Deleting All Messages in a Folder in Microsoft Outlook Web Access [closed]

  - by Cerin

  Possible Duplicate: Multiple delete in Microsoft Outlook Web Access How do you delete all messages in a folder in Outlook, preferrably through Web Access? I left my Outlook account unattended for several days (on vacation) and when I got back I found several folders with over 5k emails, mostly error logging or spam. When I try to open the Outlook client, it just locks up, presumably unable to download that many emails. I can view at most 100 emails at a time, but I can't select all emails to delete or permanently delete them immediately, so manually deleting this many emails is going to take a while. Gmail has a similar feature to select and delete all emails in a folder, and that's free so I figure being a quality non-free product from Microsoft, Outlook should have a similar feature (yes that's sarcasm). I've Googled, but I'm not finding anything. Is this possible?

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• Error on /home prevents OS boot

  - by mdrg

  Ok, I'll try to explain it listing the events: motherboard battery is weak, loses config everytime I shut the PC down; system clock usually back to 1990-something; this time, it went up to 2148; ubuntu became somewhat unusable (firefox refusing certificates, dropbox blocked), so I restarted; manually set the clock to current date and restarted; during boot, ubuntu detects errors and start auto-fix, rebooting itself in the middle of it (like a hard reboot, no shutdown messages) next time, shows boot animation screen in text mode, with an error message after a while: "Errors were found while checking the disk drive or /home", with "attempt to fix, ignore, skip mounting or manual recovery" None of the options during the boot work, they just type the text to the screen, then I'm forced to physically restart. Now I'm using Mint LXDE live CD, and I can see all my partitions just fine, including /home (my home folder blocked due to encryption, the other user folder is accessible and everything in place). I'm not sure how to proceed now. I'd like to just fix ubuntu boot without reinstalling or anything like it (at least until 12.04). What should I do now? can I easily fix this somewhow? Thanks!

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