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• Why does running this program on 11.10 give a 'GLIBC_2.15 not found' error?

  - by RafLance

  I am trying to install Absinthe 2.0.4 on Ubuntu 11.10 on a netbook. When I try to run the install file, this keeps on happening: rafael@RafLaptop:~/Desktop/absinthe-linux-2.0.4$ ./absinthe.x86 ./absinthe.x86: /lib/i386-linux-gnu/libc.so.6: version `GLIBC_2.15' not found (required by ./absinthe.x86) Do I need to upgrade GLIBC? If so, how do I do that? Since I'm on a netbook I can't use a LiveCD so I wanted to know if there was a way I could fix this issue without reinstalling my whole OS. Any explanations about what GLIBC is exactly would be great too since this is a learning experience for me. I know that GLIBC is a part of libc.so.6 and so I tried to run sudo apt-get install libc.so.6 but was told that it was up to date. But GLIBC isn't? I hope this articulates my problem well, if there are any pieces of missing info or questions to clarity my question, please let me know! ~-~ EDIT/UPDATE: So after some help on the AskUbuntu chat room from user izx, I have gathered the following information/understanding: -I need to run this program with Ubuntu 12.04 or recompile it from source -Upgrading libc on Oneiric to 2.15 while possible, is not an easy task and is not officially supported.

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• Distribute Windows (XP or 7) as virtual appliance

  - by User32

  I'm looking at ways that may be possible to distribute a Microsoft Windows (e.g. 7) virtual appliance (such as VMWare image) pre-configured and installed with a large application of mine. Is this possible? If not, is it perhaps best to ask clients to perform a virtual appliance installation on their site and then install my application via a script of some sort? For these kinds of scenarios I see that open source OSes are heavily used, but in my case I cannot use Linux or any other open source OS due to some requirements.

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• Why does iChat Server keep connecting to proxy.eu.jabber.org?

  - by Tom Hamming

  I have OS X Server 10.6.5 running on a new Mac Mini (server model), serving several functions among which is iChat Server (iChat and Pidgin on Windows as clients). In the iChat log in Server Admin, I kept seeing entries about connecting to proxy.eu.jabber.org. It's for our office network and I wasn't excited about external access to it, so I disabled server-to-server XMPP federation and now the connections just time out. But why is it doing that in the first place? Sample log entry: (datetime) (servername)jabberd/resolver[portnum]: [xmpp-server._tcp.proxy.eu.jabber.org resolved to 208.68.163.220:5269 (300 seconds to live) then: sending dialback auth request for route '(full server hostname)/proxy.eu.jabber.org' A couple minutes later, it comes back with: dialback for outgoing route '(full server hostname)/proxy.eu.jabber.org' timed out

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• Can I install new version of Ubuntu in spair RAIDed partition with unetbootin

  - by artfulrobot

  I have Ubuntu 11.04 running on my home desktop which has 2 hard drives mirrored by RAID. The drives are partitioned with a big data partition, a swap partition and a couple of 20Gb partitions for OSes, one is 11.04 which is in use, and the other is kept spare for installing a later version. Which is what I'd like to do now. The idea of a 2nd partition for new OS is that I can try it, and if it's problematic, I can boot back into the original one - the machine is shared with others, so I need it to stay available! I have had horrible problems with software RAID after using a Live USB stick - basically it messes up the internal numbering of the RAID drives or something, anyway, the result is you can't boot after using it :-( and have to spend ages re-assembling the arrays, trying to remember grub commands etc etc. Quite a shocker when you consider booting from a Live USB is supposed not to affect the existing system. As I'm installing in a RAIDed disc, I would typically use the Alternative install (sad to hear that this is going to be dropped in future). However, I think I might be able to use unetbootin to trick the system into working on top of the existing system that understands RAID, with the normal ISO? If unetbootin loads from drives that are already understood to be RAIDED, then presumably it will only see md0... instead of sda, sdb... and as long as I don't need to repartition (I don't) it should be fine, right? Or is that just plain foolishness? Please tell me before I end up with a dead system (again!)

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• Blender Render Cycles

  - by usersuper

  I get a very poor Render in cycles. Not just minor problems, but just a cloud of of black and white dots and no contour at all. I read a lot about this now and couldn't get it to work. Does anybody know how to get the settings right. Or better what do I have to pay attention to get better renders. I also tried external renderer like Lux, which increased my CPU usage to 98 % (just the default cube and clicking on Lux and load materials). Is this normal and what could i do to improve that. I have various versions of Blender (2.61,2.62,2.63) on Mac OS X. Thanks for the time.

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• How to properly store dotfiles in a centralized git repository

  - by asmeurer

  I'd like to put all my dotfiles (like .profile, .gitconfig, etc.) in a central git repository, so I can more easily keep track of the changes. I did this, but I would like to know how to properly handle keeping them in sync with the actual ones in ~/. I thought that you could just hard link the two using ln, but this does not seem to work as I expected, i.e., if I edit one file, the other does not change. Maybe I misused the ln command, or else I misunderstand how hard links work. How do people usually do this? Judging by GitHub, it's a pretty popular thing to do, so surely there's a seamless way to do it that someone has come up with. By the way, I'm on Mac OS X 10.6.

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• NTP doesn't sync

  - by Jonathan

  I'm using Meinberg NTP to sync the time in a VPS. The clock refuses to sync - there's a ~30s shift comparing to other servers. Meinberg NTP comes with a status script that checks hte delay\jitter every 10s and it is showing all zeros. Actions I've taken which didn't help: Restarted the NTP service using a script that comes with Meinberg NTP Added port 123 for UDP and TCP as an exception port to Windows Firewall Added Meinberk NTP executables as an exception program to Windows Firewall validated iburst appears after each server listed in the configuration file Restarted the server The OS is a Windows Server Standard SP2 32bit. What did I miss?

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• Can I install Win 7 Pro with a Win 7 Home Premium disc?

  - by SeanJA

  So I got the 64bit Win 7 Pro disc from the Ultimate steal for cheap enough... but I found out that some stuff that I want to run (games mostly... since that is the only reason I keep Windows around...) did not do too well on the 64bit OS. So I have borrowed my friend's install disc, but it turns out that his is only Home Premium rather than Pro which I have a serial for. Can I still just run through the Home Premium install and use my Pro serial number (seems like I should be able to with the whole 'any time upgrade' deal)? Or do I have to go and find a 32bit pro disc to do the install? Are there any hoops that I have to jump through?

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• What can I do to enhance MacBook Pro internal mic sound quality in iMovie?

  - by gaearon

  After using MacBook for two years, I bought 17'' MacBook Pro. I'm pretty happy with it, performance and all, but I also was going to record some music videos for YouTube. I play guitar and sing. However I was extremely disappointed with the sound quality that comes by default. I'm 100% sure my 13'' MacBook mic was much better at recording music and singing. Currently mic can't event handle acoustic guitar, outputting sound you'd think was recorded 5 years ago in ARM format on a Nokia phone on a loud concert. It totally feels like some lame filter is cutting low and high frequencies. I want to know what settings (visible or hidden) in iMovie or Mac OS itself I might want to tweak in order to get my MBP mic record clean sound.

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• Ubuntu nasty error: The panel encountered a problem while loading xxxApplet

  - by Phuong Nguyen

  I have install ubuntu & GNOME (say, with minimum possible number of packages). I can login and do anything as I want. However, there is a nasty thing: Whenever I loggin in, I see this message: Error The panel encountered a problem while loading "OAFIID:GNOME_FastUserSwitchApplet" Do you want to delete the applet from your configuration [Don't Delete] [Delete] If I press [Delete] then the error won't be shown anymore. However, for every new created account, the message shown again (use created using sudo adduser user_name). Since I clone this OS into several virtual instance, and create new account on these instances. I wonder if there is a way to configure my ubuntu so that new created user don't have to see this annoy message? Thanks

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• Quad Core host with hyper-threading, how many processors to configure in VirtualBox?

  - by Anthony

  I have a quad-core i7 processor with hyperthreading (8 logical cores), when I configured a virtual machine to use 8 processors, VirtualBox gave me a warning saying that I only have four cores (which is true) and that this may cause a performance issue. But hyper-threading is a hardware feature, so the OS sees 8 cores and it sends instructions to all 8. What if setting it to 4 caused the VM to use 2 cores (4 threads) instead of 4 simultaneous threads (on all 4 cores)? Does the warning I got take into account that my machine has hyper-threading?

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• What is the advantage of iSCSI over SMB?

  - by sofakng

  At my house I'm running a Hyper-V server with a Windows Server 2008 R2 VM acting as a file server. Files are shared across my network using SMB. (Also, the machine is using a PERC 6/i RAID card but I don't think that's important) I'm thinking about setting up a dedicated SAN (iSCSI) machine and then switching my Hyper-V server to ESXi. What are the advantages of using iSCSI versus SMB? I think I would still need a file server OS (eg. Win 2k8) sharing files via SMB so I'm not sure the end result would be any different than my current setup...

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• How to create a bootable Ubuntu Linux (10.04) USB installation for Macintosh

  - by vdavidovski

  I tried searching the Internet, but could not find a decent tutorial explaining how to create a bootable Ubuntu Linux (10.04) USB installation that could be run not only on a PC but also on Macs and MacBook Pros. In addition, I tried refit, but ended with "Missing operating system" error. Here is basically the layout of my bootable under PC Ubuntu USB drive (using MBR): Partition 1 (ext3, bootable) - Ubuntu Linux 32 bit, contains also grub2 bootloader. Partition 2 (ext3) - Ubuntu Linux 64 bit. Partition 3 (fat32) - contains data. What would be the best way to enable this drive to boot under Mac OS X? And if refit has to be used, could I simply have one more partition on the USB drive containing it? Thanks!

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• Daily Weekly and Monthly DB backup with logrotate?

  - by benjisail

  I am currently keeping daily backup of my database by doing a daily mysqldump and by using logrotate to keep the 7 last days of mysqldump. I would like to improve this backup process to keep 7 daily backup, 3 weekly backups and 12 monthly backup. I found this article which explain how to di this with logrotate : http://www.hotcoding.com/os/sysadmin/35751.html However I am using the dateext logrotate option to name my backup files so I cannot use this solution. How can I do daily, weekly and monthly backup with logrotate and with the dateext option?

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• Handling window resize with arbitrary aspect ratios

  - by DormoTheNord

  I'm currently making a 2D game using SFML. I want the aspect ratio to be maintained when the user resizes the window. I also want the game to work with any arbitrary aspect ratio (like any media player would). Here is the code I have so far: void os::GameEngine::setCameraViewport() { sf::FloatRect tempViewport; float viewAspectRatio = (float)aspectRatio.x / aspectRatio.y; float screenAspectRatio = (float)gameWindow.getSize().x / gameWindow.getSize().y; if (viewAspectRatio > screenAspectRatio) { // Viewport is wider than screen, fit on X } else if (viewAspectRatio < screenAspectRatio) { // Screen is wider than viewport, fit on Y } else // window aspect ratio matches view aspect ratio { tempViewport.height = 1; tempViewport.width = 1; tempViewport.left = 0; tempViewport.top = 0; } viewport = tempViewport; camera.setViewport(viewport); gameWindow.setView(camera); } The problem is I'm having trouble with the logic to determine the properties of the viewport.

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• Encryption of external HDD -- accessible from windows without installation

  - by Rainer

  I would like to use encryption on my external HDD but I would like to be able to access the encrypted data from Windows as well. As suggested in other questions, TrueCrypt is one option here, or I am using momentarily encfs, which is not available for Windows. But my question goes further: I would like to be able to access the encrypted partition from Windows without installation as I will be using it from different Windows machines for which I have no administrator access. My main OS is Linux and I have full root access to that computer. Is there a full disk or file based encryption which I can use cross platform and which does not require installation under Windows? ADDITION: It seems that TrueCrypt provides a portable mode which fulfills my requirements partly: http://www.truecrypt.org/docs/?s=truecrypt-portable, but still the TrueCrypt driver needs to be installed by an administrator... pitty Thanks

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• Dynamic dns client stops updating when login off Windows

  - by Sami-L

  Running a dynamic dns updater software on Windows server 2008 R2, when I log off the software stops updating, I concluded that I have to look for a dynamic dns client running as service, I found this task a bit heavy since there is a big variety on the net, it needs a long time to make the right choice as many details are to pay attention to, free, masked fees, fees, installed on machine, configured on router, trusted, not trusted, compliant with OS, not, ... That's why I am here to ask for help on this matter, I would like to be advised by skilled people, to find a trusted free dns updater (client) for Windows which can run as service, and maybe which can send email when update fails.

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• Configuring Samba to allow Use of CUPS printer

  - by Skizz

  Having trouble with samba printing. I have a CUPS printer installed on an Ubuntu 11.04 server and that works great. When I try to configure samba to allow an XP machine to use the printer, it fails when printing. I can install the printer drivers for XP from the server and the printer appears in the XP printer control panels. When I try to print a test page from the XP machine I get this error in the system event log: Jun 27 20:33:29 FatController smbd[3571]: [2012/06/27 20:33:29, 0] rpc_server/srv_netlog_nt.c:603(_netr_ServerAuthenticate3) Jun 27 20:33:29 FatController smbd[3571]: _netr_ServerAuthenticate3: netlogon_creds_server_check failed. Rejecting auth request from client JAMES machine account JAMES$ Here's my smb.conf file: [global] server string = %h (Server) workgroup = SODOR encrypt passwords = true security = user os level = 255 preferred master = yes domain master = yes local master = yes logon path = \\%L\profile\%U logon drive = S: logon home = \\%L\home\%U domain logons = yes map to guest = Never guest ok = no dns proxy = no time server = yes logon script = logon.bat load printers = yes printing = cups printcap name = cups nt acl support = no interfaces = eth1 lo bind interfaces only = yes smb ports = 445 [netlogon] comment = Net Log On path = /home/samba/netlogon guest ok = no read only = yes browseable = no [profile] comment = User Profiles path = /home/samba/profiles read only = no create mask = 0600 directory mask = 0700 browseable = no store dos attributes = yes [printers] comment = All Printers path = /var/spool/samba browseable = yes guest ok = no printable = yes [print$] comment = Printer Drivers path = /var/lib/samba/printers browseable = yes guest ok = no read only = yes write list = root, skizz Anyone know what the problem is and how to fix it? In addition to the above, I also get this error: Jun 27 21:56:35 FatController smbd[3571]: [2012/06/27 21:56:35, 0] printing/print_cups.c:1027(cups_job_submit) Jun 27 21:56:35 FatController smbd[3571]: Unable to print file to `Edward' - client-error-not-authorized which I think is more relevant.

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• On dual-boot iMac, after fixing "EFI Boot" issue, will booting Windows cause the same issue again?

  - by Shane

  On my dual-boot iMac, after fixing the well-known "EFI Boot" issue, will booting Windows cause the same issue again? I'm hesitant to try booting Windows until I hear from others. Details: It all started when I had been working in Windows and then re-booted into Mac OSX Snow Leopard. Any attempt to boot into OSX would result in two giveaway symptoms: 1) The MAC HD was re-named "EFI Boot", and 2) a gray progress bar stopped at 10% and the spinning wheel kept spinning - no joy. Many articles on Mac Forums describe the same thing, including the fix, which is to erasing the damaged partition and either: a) re-install the OS from DVD, or b) perform a Time Machine RESTORE (which I did). Is there anything I can do to keep enjoying the benefits of a dual-boot iMac without fear of a repeat problem and associated 2-hour restore from Time Machine?

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• Unable to mount NTFS Partition after resizing

  - by sam

  I was having only 15 GB space allocated to LINUX. I wanted to have more space available to linux. So I just re sized one of my ntfs partition using GParted. But after resizing I am not able to open the partition neither in Ubuntu nor in windows. OS: Dual Boot Win7/Ubuntu 10.10 The error message i get is the following: Error mounting: mount exited with exit code 12: Failed to read last sector (395458824): Invalid argument HINTS: Either the volume is a RAID/LDM but it wasn't setup yet, or it was not setup correctly (e.g. by not using mdadm --build ...), or a wrong device is tried to be mounted, or the partition table is corrupt (partition is smaller than NTFS), or the NTFS boot sector is corrupt (NTFS size is not valid). Failed to mount '/dev/sda5': Invalid argument The device '/dev/sda5' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

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• HP DL370 G6 expansion

  - by user72185

  Hi, we are running a HP DL370 server with 6 x 300 gb disks on RAID 5. Due to a Windows update causing our server to fail recently, we couldn't access the data. I now want to separate the data from the OS (Windows server 2008 r2) so that if anything like that happens again, we can route everyone through a separate server. I have seen these HP storageworks enclosures (msa70) and have a couple of questions: Can I just take out our 2.5 inch 10k SAS drives, install them in the new Storageworks NAS and hey presto we would be up and running? If I wanted to then add another drive (I think there are 25 bays), can I just insert a blank but identical drive and the RAID 5 would dynamically expand to incorporate the new drive. Many thanks Adrian

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• Partitioning Software for Windows 7

  - by nunos

  I used to use Patition Magic Pro from Norton to do disk partitioning. Now that I have Windows 7, I have been warned, by the OS itself and later confirmed on the internet, that Partition Magic Pro has compatibility issues with Windows 7. So, I am asking you which software partitioning software do you recommend. It would be great if it was freeware but I know it is hard to find a good parititioning app that's free, so, if you know a good one that's paid, there's no problem and please mention it in your reply. Thanks in advance. P.S. I am aware of "create and format disk partitions feature" of Windows 7, but that's not enough for me. I am using Windows 7 Professional 64 bits.

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• Why do programmers write closed source applications and then make them free? [closed]

  - by Ken

  As an entrepreneur/programmer who makes a good living from writing and selling software, I'm dumbfounded as to why developers write applications and then put them up on the Internet for free. You've found yourself in one of the most lucrative fields in the world. A business with 99% profit margin, where you have no physical product but can name your price; a business where you can ship a buggy product and the customer will still buy it. Occasionally some of our software will get a free competitor, and I think, this guy is crazy. He could be making a good living off of this but instead chose to make it free. Do you not like giant piles of money? Are you not confident that people would pay for it? Are you afraid of having to support it? It's bad for the business of programming because now customers expect to be able to find a free solution to every problem. (I see tweets like "is there any good FREE software for XYZ? or do I need to pay $20 for that".) It's also bad for customers because the free solutions eventually break (because of a new OS or what have you) and since it's free, the developer has no reason to fix it. Customers end up with free but stale software that no longer works and never gets updated. Customer cries. Developer still working day job cries in their cubicle. What gives? PS: I'm not looking to start an open-source/software should be free kind of debate. I'm talking about when developers make a closed source application and make it free.

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• How do i restart my linux server in every 2 days via crontab?

  - by Barkat Ullah

  I have a Linux server containing the os version below: Linux 2.6.32-220.7.1.el6.x86_64 I want to restart it in every 2 days, please help me, I want to do it via crontab. Another help, I used a code below to drop my memory caches in every hour. 0 * * * * /root/clearcache.sh #!/bin/sh sync; echo 3 > /proc/sys/vm/drop_caches But 1st 15 in every hour my server remain so slow after cleaning the caches. My sites do not load during every hour in 1st 15 minutes. In another way if I restart my server then also caches are removed. So I decided to restart my server in every 2 days to drop my caches. Will it be helpful to restart? Or is there any other way to drop my memory caches that will not down my server?

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• Further question on Intel graphics driver

  - by Thomas Byers

  Ok, Josh answered almost immed.! I need to know specifically, now that I am using Nvidia card effectively, do I need to allow update manager to update the intel gr. drivers? I must add, I believe I know why Update Manager is telling me I need to update those Intel gr. drivers. It probably happened because I tried to update my nvidia drivers and got a buggy install, which let to to a black screen. I shut the system down manually after that and rebooted to a black screen and upon a further reboot I ascertained that I could still dual-boot(windows 7) into the other os. Then I went through the restart process and at the grub2 menu chose other options and it was probably, at that time, that Linux was smart enough to know that nvidia drivers as installed weren't cutting it, and reverted to the onboard Intel graphics system...does that make sense? Anyway, after successfully getting up and running, I reinstalled my old but successful nvidia drivers and all was well again, except now upon running Update Manager, I am offered the Intel graphics driver upgrade each time, which, up til now I have unchecked...my question is now more obvious. Should I accept the Intel driver update and if I do, will it once again override my nvidia drivers?

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