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• How to debug xsane "no devices available" error on 64 bit Ubuntu 10.04

  - by BD at Rivenhill

  I have a Brother MFC-J615W printer/scanner and I wish to use the scanning feature across a network with a computer running 64-bit Ubuntu 10.04. I have installed the drivers from the Brother website and followed all of the instructions, and printing works fine, but xsane (installed from repositories) produces a popup with the message "no devices available" on startup. I recently had success with a similar approach when installing drivers for a Brother MFC-495CW on 32-bit Unbuntu 9.10, so I am aware of issues such as requiring root access if the driver permissions are not set correctly, but running xsane as root does not solve this problem. Are there any tools available to debug this problem further or does anyone have advice on how to proceed?

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• What is the definition of "Big Data"?

  - by Ben

  Is there one? All the definitions I can find describe the size, complexity / variety or velocity of the data. Wikipedia's definition is the only one I've found with an actual number Big data sizes are a constantly moving target, as of 2012 ranging from a few dozen terabytes to many petabytes of data in a single data set. However, this seemingly contradicts the MIKE2.0 definition, referenced in the next paragraph, which indicates that "big" data can be small and that 100,000 sensors on an aircraft creating only 3GB of data could be considered big. IBM despite saying that: Big data is more simply than a matter of size. have emphasised size in their definition. O'Reilly has stressed "volume, velocity and variety" as well. Though explained well, and in more depth, the definition seems to be a re-hash of the others - or vice-versa of course. I think that a Computer Weekly article title sums up a number of articles fairly well "What is big data and how can it be used to gain competitive advantage". But ZDNet wins with the following from 2012: “Big Data” is a catch phrase that has been bubbling up from the high performance computing niche of the IT market... If one sits through the presentations from ten suppliers of technology, fifteen or so different definitions are likely to come forward. Each definition, of course, tends to support the need for that supplier’s products and services. Imagine that. Basically "big data" is "big" in some way shape or form. What is "big"? Is it quantifiable at the current time? If "big" is unquantifiable is there a definition that does not rely solely on generalities?

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• Daylight Saving Time Visualized

  - by Jason Fitzpatrick

  When you map out the Daylight Saving Time adjusted sunrise and sunset times over the course of the year, an interesting pattern emerges. Chart designer Germanium writes: I tried to come up with the reason for the daylight saving time change by just looking at the data for sunset and sunrise times. The figure represents sunset and sunrise times thought the year. It shows that the daylight saving time change marked by the lines (DLS) is keeping the sunrise time pretty much constant throughout the whole year, while making the sunset time change a lot. The spread of sunrise times as measured by the standard deviation is 42 minutes, which means that the sunrise time changes within that range the whole year, while the standard deviation for the sunset times is 1:30 hours. Whatever the argument for doing this is, it’s pretty clear that reason is to keep the sunrise time constant. You can read more about the controversial history of Daylight Saving Time here. Daylight Saving Time Explained [via Cool Infographics] 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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• dpkg E: Sub-process /usr/bin/dpkg returned an error

  - by user81269

  I decided to shift around my partitions on my hard drive for a fresh install of Kubuntu. I booted my Ubuntu 10.10 live disc, shifted everything around and attempted to install grub and it didn't work, so I burnt an Ubuntu 12.04 disc and installed it. I got the computer working and wanted to install some packages, but didn't have an internet connection at the time. So (I know this was stupid) I got some debs from previous versions of Ubuntu, as I needed my music, and the other install took a long of time to boot. Once I got my internet connection back, everything worked ok, for a little while. Then I stumbled upon this problem after removing ten broken packages using synaptic: drhax@Spamotard:~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: libgtk2.0-cil 0 upgraded, 0 newly installed, 1 to remove and 417 not upgraded. 1 not fully installed or removed. After this operation, 2,638 kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 103052 files and directories currently installed.) Removing libgtk2.0-cil ... E: File does not exist: /usr/share/cli-common/packages.d/policy.2.6.gtk-dotnet.installcligac dpkg: error processing libgtk2.0-cil (--remove): subprocess installed post-removal script returned error exit status 1 Errors were encountered while processing: libgtk2.0-cil E: Sub-process /usr/bin/dpkg returned an error code (1) Help would be appreciated. This is my first post, but I do know fair bit about Ubuntu, so feel free to point out any stupid mistakes I have made.

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• What version of SCO Open Server are guys using out there and on what hardware?

  - by Gath

  I have some old applications which are running on SCO Open Server 5.0.5, and i would love to move them to SCO Open Server 5.0.7 and on modern hardware(servers), currently am running SCO on old IBM PL 300 personal computer, on 92MB Memory, one processor, and it has been serving the clients pretty well. Now i have New Modern IBM xseries Servers and i would love to migrate the same applications to those new servers. Problem is, SCO 5.0.5 is unable to detect some of the hardware components in the new servers. I read somewhere that SCO 5.0.7 is able to detect the newer hardware even the USB ports etc. Is there anyone running SCO Openserver out there, and on what hardware architecture are they running on? Gath

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• Headset - No audio devices are installed

  - by Meowbits

  I've been having problems with my headset and I just cannot seem to figure it how to fix it. When I plug the microphone and headphone jacks into the computer I can hear sound fine. However the microphone does not get recognized. If I go into Sound Recording, it showed the microphone and it said that it was working but nothing was getting picked up. I uninstalled the audio devices and let windows reinstall them but now when I go into Sound Recording, it states "No audio devices are installed" Before I uninstalled the audio driver I made sure to try every combination of audio devices I could - none worked... If you know what I should try next, please let me know. I am getting frustrated. Running windows 7 64 bit

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• Multiple User VPN

  - by Aaron

  I am looking for a cheap or free solution to be able to connect multiple people via VPN to a host computer. Each person should not be able to see what the others are doing while logged in. Is this possible and if so where do I start my hunt? Aaron Update: I was not sure what server, was just thinking of doing it on say a win7 desktop. Just looking into having 2-3 users have access to a program without each seeing each other. Basically, I know nothing and want to know if this is a possibility for me. lol

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• Gigabyte GA-P55A-UD4P won't boot from USB drive with RAID enabled

  - by Daniel Schaffer

  I've got a Windows 7 installation image on my USB hard drive, which is set up to be bootable. I know it works because I've used it on several computers, and it works on the computer I'm trying to install as long as the RAID controller is disabled. However, when I enable the RAID controller and attempt to boot from the USB driver, it hangs for 30-60 seconds and then gives me the "disk boot failure, insert system disk" error like it can't find any OS. Just for laughs, I disabled the RAID controller again and it booted fine. I'm having separate, unrelated issues burning a dvd with the ISO, so I would prefer to get this working.

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• Declarative programming vs. Imperative programming

  - by EpsilonVector

  I feel very comfortable with Imperative programming. I never have trouble expressing algorithmically what I want the computer to do once I figured out what is it that I want it to do. But when it comes to languages like SQL or Relational Algebra I often get stuck because my head is too used to Imperative programming. For example, suppose you have the relations band(bandName, bandCountry), venue(venueName, venueCountry), plays(bandName, venueName), and I want to write a query that says: all venueNames such that for every bandCountry there's a band from that country that plays in venue of that name. In my mind I immediately go "for each venueName iterate over all the bandCountries and for each bandCountry get the list of bands that come from it. If none of them play in venueName, go to next venueName. Else, at the end of the bandCountries iteration add venueName to the set of good venueNames". ...but you can't talk like that in SQL and I actually need to think about how to formulate this, with the intuitive Imperative solution constantly nagging in the back of my head. Did anybody else had this problem? How did you overcome this? Did you figured out a paradigm shift? Made a map from Imperative concepts to SQL concepts to translate Imperative solutions into Declarative ones? Read a good book? PS I'm not looking for a solution to the above query, I did solve it.

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• Quick access to program shortcut

  - by Nathan DeWitt

  I need to edit a text file on my computer that requires admin access (hosts). I used to do this by hitting WIN and typing "Note". The shortcut for Notepad would show up, and I could right-click and choose Run as Administrator. How do I accomplish the same thing in Windows 8? Notepad isn't something I see pinned to my start menu, and I don't really want to clutter up my menu with something I may use infrequently. I want very quick access to my programs by typing a few letters in the name. If I use WIN-R, I have to know exactly the name of the executable. I want to just type Glob and see options for Sonic Global VPN. And I want to be able to execute that found executable as an admin if I need to. Windows Vista & Windows 7 are excellent at this. Surely this functionality has not been deprecated in Windows 8...

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• IE9 Kiosk Mode scheduled task opens behind taskbar

  - by greg27

  I've set up a scheduled task in Windows 7 Pro to open up Internet Explorer 9 (x86 version) in kiosk mode. The scheduled task executes when a certain user logs in, and this user is logged in automatically when Windows starts. This is the command I'm using to start IE: "C:\Program Files (x86)\Internet Explorer\iexplore.exe" -k http://example.com So far so good - the computer boots up, the user gets logged in, and IE opens up in kiosk mode. The problem is that IE seems to open behind the taskbar - so the taskbar (start menu, pinned programs, etc.) appears at the bottom of the window, and the bottom of the IE window is visible through the taskbar (since the taskbar is translucent). Is there anything I can do, preferably without installing any third party programs (although I will go for that option if none other is available), to ensure that the IE9 kiosk window always opens in front of the taskbar?

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• Mirror virtualized development environment

  - by David Casillas

  I work alone in some iOS projects in a local environment. I have been thinking in a way to be able to share my development environment between my Mac Mini and my MacBook. I mostly work at home in the Mini but sometimes I need to do a demo or work outside and I would like to have the development environment mirrored in both. I have think in using a virtual machine (via VirtualBox) with just my development tools instaled. Then I could synchronize that VM with some software between both computers so I will always have the exact environment no matter what computer I use. Is there any good reason not do do this way? I have not used Virtualization to much so I have no background on the subject. My basic setup will be: Mac Mini: i7 dual Core, 8Gb. OSX Mountain Lion Host OS: MacBook: 2.4 Core 2 Duo. 4Gb. OSX Lion Host OS. Virtual Box with Mountain Lion guest OS in both machines. XCode5, Simulator.

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• Mainstream Linux on 1GB HDD

  - by Ariel Nundi

  Hi, I've decided to start learning Linux + Ryby + RoR. The problem is the only personal computer I have is a laptop with 1GB flash card and I can't afford to buy more hardware right now. The laptop has dual core CPU and 2GB of RAM. Can you recommend a Linux distribution I can install? I've tried the netbook version of Ubuntu, but install failed because of lack of space. I'd prefer a more popular distribution, so I can use my skills say on a job. TIA

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• Can't delete some directories as Admin

  - by PencilPusher77

  I am unable to delete the following directory in Windows 7 C:\ProgramData\Microsoft\Windows\Start Menu\Programs\iTunes The error message that is displayed when I try is: "You need permission to perform this action. You require permission from the computer's administrator to make changes to this folder." I am an Administrator and have UAC set to "Never Notify". iTunes is not running either (it's been uninstalled). I have tried running cmd.exe using "Run as administrator" from the right click context menu, then executing rmdir "C:\ProgramData\Microsoft\Windows\Start Menu\Programs" but it just returns "Access is denied." Any ideas why I can't delete this dir? Thanks!

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• Avast Antivirus downloading data from net even when told not to update.

  - by Nathan W

  Hi all, This is a strange problem that I have never seen before. I have two machines, both running Win 7 and running the latest version of Avast, both seem to be downloading large amounts of data. I noticed it when we were using more data for our monthly limit then normal, 2gb+ in a couple of days when really only browsing. I installed NetLimiter and let it run for couple of hours and this is the result for the avast! Service (c:\program files\alwil software\avast5\avastsvc.exe ). The other computer downloaded twice as much data in the same amount of time. Both installs of avast have their automatic updates (turned off at 4:00pm), for both program and definitions. Does anyone know what might be going on here.

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• Why not open a PDF file in the browser but first save it to the harddisk?

  - by Lernkurve

  Question Is it correct that saving a PDF to the harddisk first, and then opening it from there with some PDF reader (not the browser) is safer than opening it directly with the browser plugin? My current understanding I know that the PDF browser plugin might have a security leak and a manipulated PDF file might exploit it and get access to the user's computer. I recently heard that saving the PDF file frist and opening it then was safer. I don't understand why that should be safer. Can anyone explain? My logic would suggest that a manipulated file started from the harddisk can just as well exploit a security leak, say for instance, of Adobe Acrobat Reader.

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• Black GUI with minimal desktop icons appeared after powering on my desktop PC

  - by Christopher Chipps

  My computer powered on fine but after POST, a dialog box appeared with a red "X" and it gave some sort of warning. It had a long file name, I cannot recollect the entirety of it but it was something like C:/system32/desktop....After clicking ok, the GUI was totally black with only the Recycle Bin icon in the Desktop, and the Taskbar was there as well. I restarted it, and the GUI was back to normal with the icons and wallpaper in their proper place. I'm sure if I knew more of that file name in the dialog box, that would be helpful to those reading this but should I be concerned that this happened?

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• SQL SERVER – Simple Installation of Master Data Services (MDS) and Sample Packages – Very Easy

  - by pinaldave

  I twitted recently about: ‘Installing #sql Server 2008 R2 – Master Data Services. Painless.‘ After doing so, I got quite a few emails from other users as to why I thought it was painless. The reason was very simple- I was able to install it rather quickly on my laptop without any issues. There were a few requests along with these emails sent to me, which regards to how to install MDS, as well sample databases. Please note that I am the admin of my machine and I installed this MDS as the admin as well. Talk to your network administrator to figure out the best suitable settings for better security of login users. Additionally, since MDS is only supported on a 64-bit machine, I had rebuilt my computer a week before with a 64-bit OS and 64-bit SQL Server to go with it. Here is a quick picture tour of the installation. First of all, go to your SQL Server 2008. Install self-extracted folder and find the .msi file for C:\1033_enu_lp\x64\setup\masterdataservices.msi. Once you clicked on the file, follow the image tour below. You can ask me any questions in case you are still confused with any of the steps of the installation. While searching the internet for a similar installation process, I have landed on the official blog of MDS team where they have many interesting posts about it. If any concept written on my posts are contradictory to the information on the official blog, I suggest that you should follow the advice of official blog. Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• How can I dual boot a UEFI OS and a legacy boot OS, or convert stock Windows 8 to BIOS?

  - by The Great Widi

  I have a computer (HP Pavilion g6-2342dx) which came with Windows 8, and thus the new UEFI boot system. I would like to install a few OS's which are not EFI compatible, and Arch GNU/Linux with BIOS mode. However, I would not like to completely wipe all my files to set to legacy. My preferred options would be to: 1. Multiboot legacy OS alongside my EFI os 2. Convert Windows 8 and Ubuntu to legacy without reformatting or switching to MSDOS part table. If anyone could suggest a solution or a method, your help would be appreciated! Thanks!

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• Apache Won't Start Windows XP Professional SP3

  - by Justin Edwards

  I have Xampp Installed on my PC, and it works fine. Every Service starts fine except Apache. I went to Services in Administrative Tools, and tried to start it fro there...no success... I tried Xampp Shell to run apache by typing: "xampp_cli start apache"...fail... I tried reinstallling Xampp...fail I tried turning my computer off/on...fail... I restored the registry from when I first installed xampp when Apache worked...still...fail Any Ideas as to what could be causing this problem?

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• Change programfiles variable on windows

  - by Fire-Dragon-DoL

  I have built a computer for a user that asked me for "speed": an SSD was the obvious solution because what he means by speed is "fast boot time". This solved the problem, however the user is not smart enough to remember that he must install programs on D rather than C (c is the ssd, D is an raid 1 hdd). The only solution that comes in my mind is changing programfiles variable such that will point to D rather than C by default. Otherwise, other solutions are ok but I really can't find anything else at the moment. Does anyone have recommendations for how to accomplish changing the default installation directory in Windows?

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• How to remove a partition on a USB drive?

  - by Nathan Long

  I got a free promotional USB stick that I want to format for my own purposes. When I inserted it, it automatically opened a browser and launched a web site. I have since disabled autoplay on this computer so that nothing launches when the stick is inserted. But it still shows up as two separate drives, and one of them is a "CD Drive" that I can't format. How can a USB stick contain a "CD Drive?" And more to the point, how can I remove this partition using Windows XP or Ubuntu? Update I previously asked for an XP solution, but finding none, I have tried Ubuntu, also without success. Gparted doesn't see the "CD" portion as a device at all, and from bash, any chmod changes I try tell me that the file system is read-only. Any ideas?

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• Netbook with Windows 7 Starter - Can I upgrade to Professional or Ultimate?

  - by Andrew J. Brehm

  There are finally Windows 7 netbooks available, but they come with Windows 7 "Starter". Can I upgrade "Starter" to Windows 7 Ultimate using a normal retail DVD (and its new licence key)? What about special netbook drivers? Will they be replaced by an in-place upgrade? Does Windows 7 even have a way to upgrade to another edition or will I have to delete and re-install? If I delete and re-install, how will I get the special netbook drivers to install again? In my case it will probably be a HP netbook (HP Mini 110-1115SA). Can I just install the drivers from the HP CD that comes with the computer? Any ideas?

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• Trying to mount NFS share on Windows Machien at startup with Z: letter for all users

  - by ScottC

  Windows Server 2008 We are trying to mount a specific drive letter on a windows machine from a unix machine. We need the mount to be available to the server even if no users are logged in and to users who are logged in with If we run the command from the command prompt manually it conencts and we have access to the NFS share, and can open it and see and edit files. mount -o fileaccess=777 anon \\127.0.0.1\nav z: (ip address replaced with 127.0.0.1 for security reasons) However if we try to automate the task by making an entry in the task schedule for boot time, to execute the batch script, it adds a disconencted drive to the list in 'My Computer' but it is disconencted and when trying to access the drive an error is produced: Z: is not accessible The data area passed to a system call is too small.| Tried as administrator with highest privelidges, as SYSTEM (group) and as my user (adminstator level user) same results. Is there another way to do this? Most of the help I have found online suggest this way but it keeps failing.

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• Windows 7 - Ubuntu 10.10 Dual Boot Partitioning Recommendation for HP Laptop OEM

  - by Denja

  Hi Linux Community, After been temporary impressed with the newb Windows 7 and after intensly using it I find my self struggling with the ever slow and buggy windows OS once again. It's Time to go with the Ubuntu/Linux way for a better and faster tomorrow. Unfortunately in my country most Users/Business use Windows based Systems. As a Computer technician i want to learn and use both Systems and possibly introduce New users to more affordable Linux Based Systems. For now I want to create dual-boot or even triple boot layouts on my laptop machine Here's the layout in use now: * (C:) Windows 7 system partition NTFS - 284,89GB (Primary,Boot,Pagefile,Dump) * HP_TOOLS system partition FAT32 - 99MB (Primary) * (D:) RECOVERY partition NTFS - 12,90GB (Primary) * SYSTEM partition NTFS 199MB (Primary) Here's the layout I want to make. * (C:) Windows 7 system partition NTFS - 60GB (Primary) (sda1) * (D:) Windows data partition (user files) NTFS - 60GB(Extended or Primary)(sda2);wanna share with Linux * Linux root Ext4 - 10GB (Primary)(sda3) * Linux swap swap- RAM size, 3GB (sda4) * Linux home Ext4- 164,9GB (Extended)(sda5) Question 1: Is the layout that i want to make correct as the Primary and Extended Partition concerns ? Question 2: Can I definitely get rid of SYSTEM Boot loader of windows? Question 3: If I get rid of HP_TOOLS and RECOVERY partition will it be a problem? Question 4: Based on my layout what is your suggestion for a Triple Boot layout for OSX or Puppy Linux? Thank you in advance for your advises and suggestions.

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