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• Windows partition UNKNOWN after Ubuntu installation attempt at dual boot - How to fix?

  - by user285645

  The idea was to install Win 7 and Ubuntu with dual boot. However, after installation, Gparted shows a /dev/sda1 as an 'unknown' filesystem and its size is 278 GB. All my windows files, data are in this partition. THen, there's /dev/sda2 with 'EXT4' filesystem (size-9.54 GB) - created during Ubuntu install. Then, there's /dev/sda3 with 'extended' filesystem (size- 10.5 GB) - created during Ubuntu install. Then, there's /dev/sda5 with 'linux swap' filesystem (size- 2 GB) - created during Ubuntu install. Then, there's /dev/sda6 with 'ext4' filesystem (size- 8.5 GB) - created during Ubuntu install. MY questions are: What exactly does this Gparted output above mean? How to recover my previous Windows 7 installation that's in /dev/sda1 (NTFS). I have some important files I need. Also, I had a PGP encryption on the disk before installing Ubuntu. Now, it just boots straight into Ubuntu... why? How to uninstall Ubuntu (the Try ubuntu and uninstall did not work. the boot-repair did not work) I have read other topics but noone has provided a proper step by step answer to how to recover my 278GB WIndows partition. The testdisk step by step procedure did not work. It says the NTFS disk is unrecognized.

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• Any way to release focus on a KVM guest in virt-manager without having to click Ctrl_L + Alt_L?

  - by slm

  Is there a way to move my mouse in and out of a KVM guest in virt-manager without having to click to gain focus of the window and release focus by pressing Ctrl_L + Alt_L? EDIT #1 The guest VM is Win2008R2. I've tried this on a CentOS 5, 6, and Fedora 14 box running various versions of virt-manager and KVM and they all exhibit this behavior. EDIT #2 I just tried the solution recommended by @tpow and that appears to be the issue. Manually adding a tablet input device resolves the problem and I can now move the mouse in and out of the KVM guest without having to gain focus first.

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• How to configure a Logitech USB headset on Fedora 14 [closed]

  - by Humble Debugger

  I have a Logitech USB headset http://www.amazon.com/gp/product/B003NREDG4 but I can't hear anything nor input anything through it. I am working on a Fedora 14 desktop. cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfebdc000 irq 51 2 [Headset ]: USB-Audio - Logitech USB Headset Logitech Logitech USB Headset at usb-0000:00:1d.0-2, full speed /sbin/lsmod | grep -c snd 14 lsusb Bus 008 Device 002: ID 046d:c529 Logitech, Inc. Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 004: ID 046d:0a0b Logitech, Inc. ClearChat Pro USB Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Please advise

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• Ubuntu 12.04 menu bar, nautilus, terminal, and gtk themes not working after installation of Gimp 2.8

  - by Chris

  I installed gimp2.8 from this ppa: ppa:otto-kesselgulasch/gimp after that, my system began having problems. This is my thought process in trying to fix what's happened and the order in which it happened: I noticed the menu bar at the top changed from an opaque black to perfectly clear and the titles of applications and the hidden buttons reacted slowly. No big deal, restarted to see if it fixed it. It didn't, in fact, when the logon screen came up, the password field was grey and boxy like a default windows 98 theme (that's the best I can describe it) as were all the option buttons for gtk programs. I open terminal to try and reinstall gtk, but the terminal is just a black screen with no ability to input commands. I go to a tty and I reinstalled gtk3 and gtk2 (I have both on my system. I don't think they're in conflict, they hadn't been before hand). I restarted. Nothing doing. Log in, nautilus isn't placing icons on my desktop. I click the launcher. It flashes, but no window opens. Try to open by Alt+f2, nothing. I purge ubuntu-desktop, restart, reinstall ubuntu-desktop. Nothing. I have no clue what to do at this point so I'm asking for any help diagnosing the problem and fixing it.

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• How to print new line character with echo?

  - by Summer_More_More_Tea

  I dump a string with hexdump like this 2031 3334 2e30 0a32 2032 3331 302e 000a. It is clear that 0x0a is new line character, however, when I try to echo this string out, I always got 1 430.2 2 13.0 -- the new line is replaced with a space, even I use the -e flag. What may be the problem? Does the tailing \0 ruin the output? Is there any alternatives to print 0x0a a new line? Thanks and Best regards.

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• Problem with php and apache

  - by user47587

  I am having trouble using the php module with apache2. At the moment, testing with a phpinfo script, only php code is displayed as though it were text, no output at all. I have the line LoadModule php5_module libphp5.so, with an absolute path. Yet, when I do apache2 -t -D DUMP_MODULES |grep php, nothing is reported I have my error level set to warn, and the last entry in my logfile after apache starts is [notice] Apache/2.2.15 (Unix) PHP/5.2.12 mod_ssl/2.2.15 OpenSSL/0.9.8g configured -- resuming normal operations Which implies there is php support?

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• Stop ssh client from offering all the public keys it can find?

  - by Rory McCann

  Like most sysadmins I use openssh all the time. I have about a dozen ssh keys, I like to have a different ssh key for each host. However this causes a problem when I am connecting to a host for the first time, and all I have is a password. I want to just connect to the host using a password, no ssh key in this case. However the ssh client will offer all the public keys in my ~/.ssh/ (I know this from looking at the output of ssh -v). Since I have so many, I will get disconnected for too many authentication failures. Is there some way to tell my ssh client to not offer all the ssh keys?

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• Table 'mysql.host' doesn't exist

  - by eriktm

  100913 10:21:29 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql /usr/local/mysql/libexec/mysqld: Table 'mysql.plugin' doesn't exist 100913 10:21:29 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 100913 10:21:29 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 100913 10:21:29 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended This is the output from the log-file for mysqld I get when I try to start mysqld with the mysqld_safe command. I tried to run mysql_upgrade to correct the first error, but this command seems to require the server to be started, which is my original problem. Next, it says that the table mysql.host does not exist. I was unable to figure out what this is caused by.

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• How to Program AWS Spot Instances to Strategically Bid So the Auction is Never Lost Until a Competitor Beats the Maximum I'm Willing to Pay?

  - by Taal

  I believe I'm in the right section of stack exchange to ask this. If not, let me know. I only use Amazon Web Services for temporary type hosting services, so the spot instances are quite valuable to me. I would also just make an instance and start and stop it - but - that doesn't necessarily fit my bootstrapped budget sadly. Anyways, it really kills me when someone outbids me on a spot instance I have (I tend to go for the larger ones which there are fewer of available) and I get randomly kicked off. I know or at least I believe there is a way to program in something somehow to dynamically change your bidding price to beat a potential competitor's if their's is higher than yours. Now, I previously believed Amazon would just charge me for the highest price right above the next lowest competitor automatically (eliminating the need for this) - so if I bid too high, then I only pay what I would of needed to in order to win and keep the auction. Essentially, I thought my bid price was my max bid price. Apparently, according to my bills and several experiments I've done - this is not the case. They charge me for whatever I bid even when I know there is no one else around to counter bid me. I needed to clarify that, but let me get back to the main point: Let's say I'm bidding $0.50, competitor comes in and bids 0.55 cents. I get kicked off. I want to have it to where I'd set a maximum I'm willing to pay (let's say $1.00 here), and then when competitor comes in and tries to bid $.55, my bid is dynamically adjusted to beat his at $0.56 up until he breaks my $1.00 threshold. I've been reading the guides and although they are more or less straightforward, I feel like they leave a few holes in them that end up confusing me. Like, for instance, where do I input said command or when do I do it? Maybe I'm just tech illiterate and need help deciphering these guides. A good start for someone willing to answer/help me decipher this problem would be here: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-as-update-bid.html

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• Question about modeling with MVC (the pattern, not the MS stuff / non web)

  - by paul

  I'm working on an application in which I'm looking to employ the MVC pattern, but I've come up against a design decision point I could use some help with. My application is going to deal with the design of state-machines. Currently the MVC model holds information about the machine's states, inputs, outputs, etc. The view is going to show a diagram for the machine, graphically allowing the user to add new states, establish transitions, and put the states in a pleasing arrangement, among other things. I would like to store part of the diagram's state (e.g. the x and y state positions) when the machine information is stored for later retrieval, and am wondering how best to go about structuring the model(s?) for this. It seems like this UI information is more closely related to the view than to the state-machine model, so I was thinking that a secondary model might be in order, but I am reluctant to pursue this route because of the added complexity. Adding this information to the current model doesn't seem the right way to go about it either. This is the my first time using the MVC pattern so I'm still figuring things out. Any input would be appreciated.

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• Problem Activating “Windows Communication Foundation Non-HTTP Activation” feature in Windows 7

  - by Escobar5

  Hello, I'm having the following problem. I'm installing SharePoint 2010 Beta so I need to activate the windows feature "Windows Communication Foundation Non-HTTP Activation". The problem is I cannot activate it, i get the message: "An error has occurred. Not all features were successfully changed" When i look at the log (C:\Windows\Logs\CBS\CBS.log) I found this error: Process output: [l:186 [186]"SMConfigInstaller[Error]: Failed in calling 'StartService' for service 'NetTcpActivator'. Error code: 0x8007042c Anyone can give me a clue of what is happening here?

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• Creating deterministic key pairs in javascript for use in encrypting/decrypting/signing messages

  - by SlickTheNick

  So I have been searching everywhere and havn't been able to find anything with the sufficient information I need.. so Im a bit stumped on this one at the moment What I am trying to do is create a public/private key pair (like PGP) upon a users account creation, based on their passphrase and a random seed. The public key would be saved on the server, and ideally the private key would never be seen by the server whatsoever. The user could then sign in, and send a message to another user. Before the message is sent, the senders key pair would be re-generated on the fly based on their credentials (and maybe a password prompt) and used to encrypt the message. The receiver would then use their own re-generated private key to decrypt said message. The server itself should never see any plaintext passwords, private keys or readable messages. Bit unsure how on how I could go about implementing this. Iv been looking into PGP, specifically openPGP.js. The main trouble I am having is being able to regenerate the key-pair based off a specific seed. PGP seems to have a random output even if the inputs are the same. Storing the private key in a cookie or in HTML5 storage or something also isnt really an option, too unreliable. Can anyone point me in the right direction?

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• Why is my USB data transfer so slow?

  - by Dave M G

  Whenever I do any kind of file transfer using USB, whether to a USB stick, or with my Android phone, or anything else, it is ridiculously slow. It says 59.8 KB/sec, which would be an awesome speed if this were 1991 and I was using a modem to dial up to my local BBS. Surely USB technology is better than that...? 37 seconds to move less data than the equivelent of 1 MP3 file? Also, regardless of what it says about speed and time, the reality is much, much slower. I routinely see it say something like "37 seconds left" and have to wait for minutes. Sometimes, if I want to move large amounts of files, it can say it will take 8 hours or more. Is this normal? My computer may not be the most awesome on the market, and about a year old, but it's an i5 with 4GB RAM and modern components, so surely this isn't the hardware's fault. What can I do to get better USB data transfer performance? Also, I did look at this question, but my newbie eyes don't see anything that look like an actual solution, just a lot of discussion about what transfer rates could or should be. Update: As requested in the comments, I've generated a whole bunch of output from the command line, and put it on Ubuntu Pastebin. Please see it here.

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• Finding throuput of CPU and Hardrive on Solaris

  - by Jim

  How do I find the throughput of a CPU and the hard disk on an OpenSolaris machine? Using mpstat or iostat? I'm having a hard time identifying the throughput if it is given at all in the commands output. For example, in mpstat there is very little explanation as to what the columns mean. I've been using the syscl column divided by time interval to find the throughput but to be honest I have no idea what a system call truly is. I'm trying to to analyze a hardrive and CPU while writing a file to the hardisk and when at rest.

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• How to "eject" non-existing USB drive from Windows 7 host?

  - by gencha

  I use a USB key which is encrypted with BitLocker to store various data. I keep that key with me all the time. What happens all the time is that I send my home computer to hibernate without ejecting the USB key first. Then I unplug the key and take it with me to work. When I get home, I resume my Windows session and even though the key is not plugged in, the drive still appears as mounted on the system. I can also unmount the non-existing device with mountvol, but that only removes the drive letter. Windows will still think the device is plugged in. When I plug the key in, nothing happens. The device's class ID is listed in mountvol output, but the device is not listed in the Disk Management panel.

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• Apache configuration file visualization/testing

  - by Matt Holgate

  Is there a tool available (or a debug mode built into Apache) that will allow me to interactively test and explain an Apache configuration for a given request? In particular, I'd like to be able to see which directives will apply when requesting a specific URL. For example, the output for the URL http://myserver.com/foo/bar/bar.html might look something like: Allow from 192.168.0.3 <-- From <Location /foo/bar> in myserver.com vhost Require valid user <-- From <Directory /var/www/foo> in global configuration Satisfy any <-- From <File bar.html> in global configuration [Background: why do I want this? The apache merging rules for configuration directives are quite complex to get right. It would be great to have a tool which allows you to check that your rules are doing exactly what you want, and would be a good learning tool]. If there isn't such a tool, is there a debug option in Apache that will log such information for each incoming request?

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• Keyboard not working 100% after Ubuntu 13.10 upgrade

  - by Marky

  If this has already been asked, my apologies, I did not find it before writing this. So please do point me to the correct page. Anyway, I have this weird issue on my laptop right now. The keyboard is not functioning 100%. This means, I can type my login details to get into Ubuntu. I can type something on Dash. But other than this (on the desktop), no output from the keyboard when using all the other apps - as in I start to type and nothing comes out. The surprising thing is that when I shift to Guest session, the keyboard functions normally. When I shift to another TTY, like Alt+F5, keyboard works normally. This is the first time I've encountered this so far in my use of Linux. Keyboards normally never fail on any of the desktop environments I've used over the years. Any ideas what's happening? Could be the config files on my home is too messy already. I've upgraded this from 11.10 to 13.04, then now 13.10 without a re-install. Works fine so far, until now that I can't do much without a keyboard. Thanks in advance! P.S. Mouse and touchpad works fine.

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• Monitor Windows Terminal Sessions from Linux/Mac

  - by mhd

  I'm writing some scripts to make remote connections to a Windows 2003 server a bit more user-friendly, and in doing this I want to see who's logged in already. In Windows, I could use qwinsta.exe to do this, even for remote servers. So it is exposed somehow, but I couldn't find a matching command line tool for Unix. Lacking such a tool, I could install an ssh server on the machine and call it remotely, parsing the output or write a small service of my own that would expose this via http, if I don't want full-blown ssh access. Do I have to do this, or is there already a tool for querying terminal services remotely?

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• How to force ADF to speak your language (or any common language)

  - by Blueberry Coder

  When I started working for Oracle, one of the first tasks I was given was to contribute some content to a great ADF course Frank and Chris are building. Among other things, they asked me to work on a module about Internationalization. While doing research work, I unearthed a little gem I had overlooked all those years. JDeveloper, as you may know, speaks your language - as long as your language is English, that is. Oracle ADF, on the other hand, is a citizen of the world. It is available in more than 25 different languages. But while this is a wonderful feature for end users, it is rather cumbersome for developers. Why is that? Have you ever tried to search the OTN forums for a solution with a non-English error message as your query? I have, once. But how can you force ADF to use English for its logging operations? Playing with your system settings will not help, unfortunately. By default, ADF will output its error messages in the selected locale for the operating system account the application server runs on. The only way to change this behavior is to pass initialization parameters to the JVM used by the application server. It is even possible to specify the language and country/region separately. In the example below, we choose English and the United States respectively. -Duser.language=en -Duser.country=US In the case of WebLogic Server, it is possible to add such parameters in setDomainEnv.sh (or .cmd) to apply the settings to all the managed servers present on a node. In the coming weeks, I will write a few posts about other internationalization issues. Is there anything you would like me to cover? Let me know in the comments.

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• /etc/environment and cron

  - by clorz

  Hi, I've got two machines: Fedora and CentOS. And a cronjob 0-59 * * * * env > /home/me/env.log On CentOS I can see that /etc/environment is affecting the output while on Fedora it does not. I want Fedora to be like CentOS. What do I need to make it happen? /etc/pam.d/crond on Fedora auth sufficient pam_rootok.so auth required pam_env.so auth include system-auth account required pam_access.so account include system-auth session required pam_loginuid.so session include system-auth /etc/pam.d/crond on CentOS auth sufficient pam_env.so auth required pam_rootok.so auth include system-auth account required pam_access.so account include system-auth session required pam_loginuid.so session include system-auth /etc/security/pam_env.conf is the same on both systems and consists of commented out lines. Even if I make /etc/pam.d/cron.d files the same, problem still persists.

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• How to tell from what Ubuntu or Debian repository a package comes?

  - by gotgenes

  On a Debian-based system, including Ubuntu, how can one tell which repository a package will be downloaded from, without actually beginning the download? aptitude show and apt-cache info will show the section (e.g., metapackage, base, graphics), but not the repository to which a package belongs (e.g., http://ppa.launchpad.net/mactel-support/ppa/ubuntu or http://us.archive.ubuntu.com/ubuntu/). When installing the package, the actual repository appears during the download (it is printed out in the "downloading from ..." output from apt and similar programs), but how can one obtain information on the repository containing the package (or a specific version of a package) without downloading and installing it first? Additionally, how can one determine the source repository for a package that is already installed?

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• Javascript storing data

  - by user985482

  Hi I am a beginner web developer and am trying to build the interface of a simple e-commerce site as a personal project.The site has multiple pages with checkboxes.When someone checks an element it retrives the price of the element and stores it in a variable.But when I go to the next page and click on new checkboxes products the variable automaticly resets to its original state.How can I save the value of that variable in Javascript? This is the code I've writen using sessionStorage but it still dosen't work when I move to next page the value is reseted. How can I wright this code so that i dosen't reset on each page change.All pages on my website use the same script. $(document).ready(function(){ var total = 0; $('input.check').click(function(){ if($(this).attr('checked')){ var check = parseInt($(this).parent().children('span').text().substr(1 , 3)); total+=check; sessionStorage.var_name=0 + total; alert(sessionStorage.var_name); }else{ var uncheck = parseInt($(this).parent().children('span').text().substr(1 , 3)); total-=uncheck; } })

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• how does HDR work?

  - by dotminic

  I'm trying to understand what HDR is and how it works. I understand the basic concepts and have an slight idea of how it is implemented with D3D/hlsl. However it's still pretty foggy. Say I'm rendering a sphere with a texture of the earth and a small point list of vertices to act as stars, how would I render this in HDR ? Here are a few things I'm confused about: I'm guessing, I can't use just any basic image format for the texture as the values would be limited to [0, 255] and clamped to [0, 1] in a shader. Same goes for the back buffer, I take it the format needs to be a float point format ? What are the other steps involved ? Surely there has to be more than just using floating point formats to render to a render target and then apply some bloom as a post process ? (considering the output will be 8bpp anyway) Basically, what are the steps for HDR ? How does it work ? I can't seem to find any good papers / articles that describe the process, other than this one, but it seems to skim over the basics a little, so it's confusing.

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• Looking for a way execute a task on all files in a directory (recursively) on Windows

  - by stzzz1

  I have a huge number of mp4 video files that needs to have a volume boost. I need a way to execute a ffmpeg audio filter on all files in a specified base directory (and in subdirectories as well). My problem is that I'm working on a Windows computer and I have no knowledge of its shell syntax. I would like to do the equivalent of what this bash script does : TARGET_FILES=$(find /path/to/dir -type f -name *.mp4) for f in $TARGET_FILES do ffmpeg -i $f -af 'volume=4.0' output.$f done I spent quite some time this afternoon looking for a solution but the recursive nature of what I need (that is so simple with find!) isn't too clear. Any help would be greatly appreciated!

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• Remotely running batches on a Windows PC

  - by Eduardo León

  I want to remotely control my home desktop PC (running Windows 7 Professional), mainly to perform the following tasks: Downloading email attachments, and sending emails with attachments Running UI-less programs whose only inputs are files and whose only outputs are files So far, the only solution I have found is to use Remote Desktop to connect to my PC, but this is very slow and inefficient, especially when there is no fast Internet connection available other than my cell phone's. I would like to be able to send batch commands to my PC, like: Download an email attachment Use it as input for an UI-less program Save the program's output to a file Send that file to myself as an email attachment Is this possible? How could I do it?

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