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• EXT4 external hard drive for use with multiple systems

  - by EXTdumb

  I recently bought a external hard drive to store some data on. I use Linux but I am not a power user. If I format the drive to EXT4, is it possible for the permissions to ever screw up and I lost access to my data? I will be plugging the drive into several different linux based computers at work and I frequently hop distros on my main home machine. I need to make sure I don't lose any data because I overlooked something. I am not familiar with EXT 3 or 4. So far I have done this : Formatted drive to EXT4 ran gksudo thunar and changed the permissions to my user account and all settings to read/write Wrote all the files I need to the drive I really appreciate any help.

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• Ubuntu 9.10 freezes when HDMI port is connected

  - by Felipe Hummel

  I have a Sony Vaio FW350 with a HDMI output. I'm trying to use it under Ubuntu 9.10 with a LG LCD monitor 21,5'. The laptop has a Intel 4500 video card. I've tried two approaches: Boot the laptop with the HDMI cable connected and monitor turned on. Result: LCD Monitor keeps turned on but the whole screen is black and Ubuntu do not seem to be initializing. Boot Ubuntu until the end. I then connect the HDMI cable into the Laptop. The mouse and the whole system freezes. In both cases the only way to turn off the laptop is holding the power button. I've looked around the internet for similar problems, but only found workarounds for the same problem with VGA input, not HDMI. I also tried to use metacity before connecting the cable, but still got the same result. Any hints?

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• Win Server 2008 R2 - Mapped shared folder hanging?

  - by M-Tech

  I have recently built a windows 2008 server R2 machine. This is purely for file server purposes and is very much a basic build. All windows updates installed and part of domain. I have setup a shared folder on the C:Drive and added permissions for domain users as co-owners. The client machines run XP SP3 and are part of the domain also. We have a few servers running the same setups on a few of our sites but this one is particular crashes users machines (explorer.exe hangs for at least a few mins) when attempting to access the shared folder. I have turned off the option on the network card for power save aswell still no change. Any help with this is very much appreciated and i look forward to hearing from you ;)

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• "Device Not Ready" when attempting to connecting an old (DOS) hard drive to windows 7

  - by Christopher Vigliotti

  I have an old Western Digital Caviar 2540 hard drive that I am attempting to connect to a Windows 7 machine by using a Bytecc BT-300 USB 2.0 to IDE/SATA Adapter. I'm connecting things in the right order (power, then sata, then usb) and the jumper settings on the drive are at present set to slave, but am still having an issue. I am recieving a message that the drive is not initialized. When I go into Computer Management I can see the drive (as "Disk 5, Unknown, Not Initialized"), but when I attempt to initialize it or right-click and select "Offline" It tells me that "the device is not ready". Is there something that I can to to get around this, connect the drive and copy the data that I need off of this drive? Is there a third party tool available that I can use?

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• Forcing a method to be non-transactional in JPA (Eclipselink)

  - by rhinds

  Hi, I am developing an application using Eclipselink and as part of the app I need to be able to manipulate some of the objects which involves changing data without it being persisted to the database (i merging/changing objects for some batch generation processes). I am reluctant to change the data in the Entity objects, as there is a risk that even though i have not marked the methods as @Transactional, this method could in the future be inadvertantly called from within a transactional method and these changes could be persisted. So my question is, is there anyway to get around this? Such as force a method to always be non-transactional regardless; terminate any transactionality as soon as the method is started; etc. I know there is a .detach() method that can detach the objects from the Entity Manager, however, there are many objects and this seems like a potentially error prone fail-safe on my code.

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• Should I use WPF or Windows Forms Application for my project in C#?

  - by RAJ K

  I am developing a Client-Server based application in which client application will access server database to store billing information. It will also have report generation facility. Windows Forms is good in document printing & I don't see such facility or controls in WPF. If I am wrong then please correct me. I want database security, which DB should I use, SQL Server, MySQL or Oracle. I would like to use free DB but security is my priority. Please suggest how I can implement a Client-Server architecture with multiple clients in C#? Thank you Geeks!!!

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• How to update SQL Server database from multiple data sources for ASP.Net MVC 4 application

  - by shaz

  I have 10+ SQL Server databases, from where I would use one table from each database to display information using the application that I am creating. For instance, DB1, DB2....DB10. NewDB (Account, Country, Costcenter....etc.). I have started with creating a new database which would contain all the information from all those 10+ databases. However, I am confused in many cases. First of all what process should I follow? Shall I create a table (in new database) with the same structure as the actual data source and insert data from actual data source to new database? Should I be doing this on the DBMS? If so, is it some scripting? (hint expected since very new to this) I am creating a report generation application which has 10+ data sources. I need some hint which way should I proceed? Thanks for advice/help in advance.

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• Making Django ignore string literals

  - by James

  UPDATE: It turns out this is a deeper question than I thought at first glance - the issue is that python is replacing the string literals before they ever get to django. I will do more investigating and update this if I find a solution. I'm using django to work with LaTeX templates for report generation, and am running into a lot of problems with the way Django replaces parts of strings. Specficially, I've run into two problems where I try to insert a variable containing latex code. The first was that it would replace HTML characters, such as the less than symbol, with their HTML codes, which are of course gibberish to a LaTeX interpreter. I fixed this by setting the context to never autoescape, like so: c = Context(inputs) c.autoescape = False However, I still have my second issue, which is that Django replaces string literals with their corresponding characers, so a double backslash becomes \, and \b becomes a backspace. How can I force Django to leave these characters in place, so inputs['variable'] = '{\bf this is code} \\' won't get mangled when I use {{variable}} to reference it in the django template?

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• Prioritize file sharing performance in Windows Server 2008

  - by cmbrnt

  I've got a server running Windows Server 2008, and use it mainly for sharing files throughout the domain from a number of disks. It's running on VMware ESXi 4.0, in case that matters. My problem is that when I log in to the server to check user permissions etc, the access speed the files on the remote disks almost grinds to a halt. I havn't been able to measure the speeds, but I would guess it slows down to about 100kB/s as soon as I log in. This is on a gigabit network and the problems are equal for all users, even the ones connected to the same switch as the server. I've assigned 2 GB RAM to the server, and reserved it 1,5Ghz processor power. I don't have to do anything special on the server for this halt to occur. How can I make sure file sharing is prioritized on the server, so no matter what applications I'm using it will always make sure file sharing works properly? Could this be a VMware issue?

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• Computer refuses to POST

  - by TheX

  Computer refuses to POST. What it will do is the fan spins up, and the lights come on on the motherboard, but other then that it just sits there and laughs in my face! Here is what I have done... I have tried 2 different video cards, both known to work, 4 different sticks of RAM in all four ram slots, 2 processors (known to work), and 2 power supplies (known to work). The only constant is the motherboard... The Motherboard is a Asus m3a3-mvp deluxe. Anyone have any other ideas? Also, I have bread boarded it to make sure there where no shorts (taken everything out of the case and tried again).

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• 2x ATI FireMV 2250 not working

  - by Brett Rigby

  I've just bought 2x ATI FireMV 2250 cards from a reputable seller on ebay... one is a PCI-E x1 and the other is a PCI-E x16. Problem is, neither works in my Dell Vostro 220 PC... Both cards appear to not work. Is there something I'm missing? The seller used an anti-static bag for one of the cards, syaing that: "You Must connect this graphics board to the computer's power supply" but there's no socket for that, nor any indication. I have contacted the seller, but thought I'd raise it here, as it seems strange that two cards can be non-functioning.

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• Windows 2003 to log on no matter how it turned off

  - by Arya

  I have a windows server 2003, which I use Teamviewer to connect to. When there is a power failure, and the computer restarts, it will not load Teamviewer. It gets stuck on a screen which asks why the computer was turned off. There is no keyboard or mouse connected to the server and I need Teamviewer to open every time. I don't want the screen asking why it was turned off to show up ever. I turned off Shutdown Event Tracker by doing the following: Open gpedit.msc Computer Configuration Administrative Templates System click Display Shutdown Event Tracker and then selected the disable radio button. Is this enough to prevent that screen to show up again? or is there anything else I need to change?

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• Exchange 2007 OWA not listening on SSL port

  - by krs1

  I have an Exchange 2007 server that went down after a power failure. It has OWA access via SSL both externally and internally. OWA is working fine from the internal notwork, however I am getting a timeout when I attempt to connect externally. I pulled up wireshark and noticed that the server actually redirects to SSL. For some reason the server is not listening on the SSL port, and this seems to be causing the timeout. I normally do only development work, but I'm stuck with this since my sysadmin took off for the week and isn't answering my phone calls. As far as I know it shouldn't be a firewall issue. Aside from me not wanting to work on the damn thing, what should I look for?

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• Typed DataSet connection - required to have one in the .xsd file?

  - by Kyralessa

  In the .xsd file for a typed DataSet in .NET, there's a <Connections> section that contains a list of any data connections I've used to set up the DataTables and TableAdapters. There are times when I'd prefer not to have those there. For instance, sometimes I prefer to pass in a connection string to a custom constructor and use that rather than look for one in settings, .config, etc. But it seems like if I remove the connection strings from that section (leaving it empty), or remove the section entirely, the DataSet code-generation tool freaks out. Whereas if I don't remove them, the DataSet gripes when I put it in a different project because it can't find the settings for those connection strings. Is there any way I can tell a typed DataSet not to worry about any connections? (Obviously I'll have to give it a connection if I change any TableAdapter SQL or stored procs, but that should be my problem.)

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• Alternative to Rhythmbox that's light on CPU.

  - by D Connors

  I'm running Ubuntu Lucid on my netbook, and I like listening to music while doing other stuff. Problem is: Rhythmbox is constantly consuming 7-9% of my CPU while it's playing. Now, 9% might not seem like much, but it's more than double the sum of all other processes, and it's a battery killer. Now, I know that any music player will be active (not idle) while playing, and thus will consume more CPU power than idle processes. But I'd still like to know if there's a good music player for Ubuntu that's light on CPU.

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• Keyboard glitches for some when Ctrl key is pressed

  - by user270716

  I'm having some problems with my keyboard, if I press the Ctrl key it glitches for some time. For example, if I press Ctrl and press Tab while it's still glitched the computer shuts down as if i pressed the Power On/Off button. If I press a it "presses" Alt, A and a symbol I can't remember, if I recall correctly it's a currency symbol. If I press Ctrl again it "presses" the ' key. I'm using Windows 8 Single Language 64 bits with a ABNT2 keyboard. The processor is a Intel Celeron G530 with 2 GB of RAM.

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• What is the easiest way to apply database functionality into my daily life?

  - by Daddy Warbox

  let me try to explain it by listing some of the things I want to do: Submit random thoughts, notes, facts, and to-do tasks of any sort and at any time. Tag each of these submissions freely. Manage these tags centrally. Associate meta-data with submissions and tags. Search, filter, and sort submissions. I want lots of power here. Display views of submissions (including within searches) in a hierarchy. Create said hierarchies easily out by ordering relevant tags. I'm thinking towards some kind of desktop program that allows me to quickly do all of these things. A web service could also work, too, but it will need offline capabilities. I don't want to have to pay for this, if that's possible. Also, as I know regex and SQL, I wouldn't mind solutions involving the use of either.

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• Lynksys WRT120N wireless router not connecting to ADSL

  - by pradeetp

  I have a lynksys WRT120N wireless router that was connected to Sterlite ADSL modem. The internet connection was working fine through wireless access. I changed the ADSL router because it developed some power issues and got it replaced with the same model/brand from the service provider. However I am not able to access internet now. Here is the current setting Sterlite SAM300 XA IP Address: 192.168.2.1 (I changed it to this IP because the IP address of my ADSL router was same) Lynksys WRT120N wireless router IP Address: 192.168.1.1 If I connect my laptop to ADSL router directly, the internet works fine. It is only that that if I access it wirelessley through wireless router that I am not able to connect to internet. The IP address setting has been configured to obtain IP address automatically. I have windows 7 OS home edition. Could someone please help me to fix this issue.

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• mysqld stopped working..can't restart...need help?

  - by grant tailor

  i was just checking somethings and noticed mysqld is not running in parallels power panel control panel...but my websites on the server were all working fine, which use mysql databases...so really strange So i tried to restart mysqld but got errors and can't restart and now all my websites are all offline now saying error connecting to database. logged in as root and tried /etc/init.d/mysqld start and got this error ERROR! Manager of pid-file quit without updating file What do i do next? What do i do? Please help!

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• Moving webshop storage to NoSQL solution

  - by mare

  If you had a webshop solution based on SQL Server relational DB what would be the reasons, if any, to move to NoSQL storage ? Does it even make sense to migrate datastores that rely on relations heavily to NoSQL? If starting from scratch, would you choose NoSQL solution over relational one for a webshop project, which will, after a while, again end up with a bunch of tables like Articles, Classifications, TaxRates, Pricelists etc. and a magnitude of relations between them? What's the support like in .NET (4.0) for MongoDB or MongoDB's support for .NET 4.0? Can I count on rich code generation tools similar to EF wizard, L2SQL wizard etc. for MongoDB? Because as what I have read so far, NoSQL's are mostly suited for document storage, simpler object models. Your answer to this question will help me make the right infrastructure design decisions.

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• Games + Closed Lid = Hibernation

  - by Isaac Rabinovitch

  I have an ASUS N53S that I mainly bought for its RAM capacity. (I run a lot of VMs.) But as a bonus, it came with a fancy ATI video card. So I decided to install GTA 4 and plug it into a big monitor and settle down for some casual mayhem. But after about 5 minutes, it goes into hibernation! What gives? Since I was using an external monitor and didn't need the keyboard (using an XBox controller) I closed the lid on the laptop. Gaming is compute-intensive, so my GPU and CPU were both working hard and generating heat. Closing the lid interfered with cooling. Since I have the laptop configured to hibernate when I press the power button, the heat-triggered shutdown caused hibernation.

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• Dual Monitors don't turn off/sleep when they should

  - by Mario

  Details: Dual 25" monitors connected to HP Envy via HDMI and display port via DVI adapter. Power scheme is set up in high performance (Dim Display: Never - Turn Off Display: 15 mins - Computer Sleep: Never) Screensaver is set up to kick in after 10 mins of idle (which happens) 5 minutes later, the screensaver stops. The "Monitor Going to Sleep" notice appears on screen and monitors go to sleep briefly. All is well thus far. Suddenly, the Windows 7 alert sound when a device is unplugged is heard. Monitors then turn back on. Screens are black. Only the mouse cursor is displayed. Backlighting is back on. This only started happening after I obtained and connected the second 25" monitor a few days ago. However, I had a 24" in its place before, and this wasn't happening. Why is this happening and how do I correct this behavior? Thanks in advance.

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• mysql Incorrect Information in File: (corrupt) error

  - by Nick M.

  I've recently suffered from a power outage on one of my monitoring servers at the office. The result of that outage caused for some database tables to get corrupted. I've successfully repaired 3-4 tables by using the "use_frm" option however there are still 3 that seem to be badly corrupted and are not responding to the mysql REPAIR command (with or without use_frm) mysql> REPAIR TABLE poller_item; +-------------------+--------+----------+---------------------------------------------- ------------+ | Table | Op | Msg_type | Msg_text | +-------------------+--------+----------+------------------------------------------------- ---------+ | cacti.poller_item | repair | Error | Incorrect information in file: './cacti/poller_item.frm' | | cacti.poller_item | repair | error | Corrupt | +-------------------+--------+----------+------------------------------------------------- ---------+ In this scenario are there any other way to repair a table? MySQL Version mysql Ver 14.14 Distrib 5.1.49, for debian-linux-gnu (x86_64) using readline 6.1

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• Dynamic, reflective SignalHandler in Java

  - by pilcrow

  How do I install signal handling logic iff sun.misc.Signal is available? Background First generation of my code looked something like this: class MyApp { public static void main(String[] args) { ... Signal.handle(term_sig, new SignalHandler() { public void handle(Signal sig) { ... } }); ... } } I believe I understand how to reflectively test for and use signal handlers -- Class.forName("sun.misc.Signal"), reflectively call Signal.handle, and so forth. My impulse was simply to instantiate another anonymous inner class with the dynamically obtained SignalHandler class, but I think that's just wishful syntax.

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• Kill program after it outputs a given line, from a shell script

  - by Paul

  Background: I am writing a test script for a piece of computational biology software. The software I am testing can take days or even weeks to run, so it has a recover functionality built in, in the case of system crashes or power failures. I am trying to figure out how to test the recovery system. Specifically, I can't figure out a way to "crash" the program in a controlled manner. I was thinking of somehow timing a SIGKILL instruction to run after some amount of time. This is probably not ideal, as the test case isn't guaranteed to run the same speed every time (it runs in a shared environment), so comparing the logs to desired output would be difficult. This software DOES print a line for each section of analysis it completes. Question: I was wondering if there was a good/elegant way (in a shell script) to capture output from a program and then kill the program when a given line/# of lines is output by the program?

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