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• ASP.NET Web Server Hardware Configuration

  - by Santa Te Banta

  I'm planning on deploying my ASP.NET Web app in the production environment using a Windows Server 2003 machine. But I know nothing about the CPU brand names and what's best. I know 4 GB RAM, with anything over 3 GHz clock speed will be a good bet and will serve a large number of users. But tell me what's the latest and greatest processor brand-names for running a Windows Server 2003 OS today? And what edition of the Windows 2003 Server do I need out of the following, if I have to run a website to support about 100,000 (a hundred thousand) users, 60% of who are expected to be online at all times? Web Edition Standard Enterprise Datacenter source: http://en.wikipedia.org/wiki/Windows_Server_2003 The article says that the Web edition can only support up to 2 GB of RAM. Will that be sufficient for the above user population?

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• Is recursion really bad?

  - by dotneteer

  After my previous post about the stack space, it appears that there is perception from the feedback that recursion is bad and we should avoid deep recursion. After writing a compiler, I know that the modern computer and compiler are complex enough and one cannot automatically assume that a hand crafted code would out-perform the compiler optimization. The only way is to do some prototype to find out. So why recursive code may not perform as well? Compilers place frames on a stack. In additional to arguments and local variables, compiles also need to place frame and program pointers on the frame, resulting in overheads. So why hand-crafted code may not performance as well? The stack used by a compiler is a simpler data structure and can grow and shrink cleanly. To replace recursion with out own stack, our stack is allocated in the heap that is far more complicated to manage. There could be overhead as well if the compiler needs to mark objects for garbage collection. Compiler also needs to worry about the memory fragmentation. Then there is additional complexity: CPUs have registers and multiple levels of cache. Register access is a few times faster than in-CPU cache access and is a few 10s times than on-board memory access. So it is up to the OS and compiler to maximize the use of register and in-CPU cache. For my particular problem, I did an experiment to rewrite my c# version of recursive code with a loop and stack approach. So here are the outcomes of the two approaches:   Recursive call Loop and Stack Lines of code for the algorithm 17 46 Speed Baseline 3% faster Readability Clean Far more complex So at the end, I was able to achieve 3% better performance with other drawbacks. My message is never assuming your sophisticated approach would automatically work out better than a simpler approach with a modern computer and compiler. Gage carefully before committing to a more complex approach.

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• Community Launch: Londrina

  - by anobre

  Hoje (20/03/2010) fizemos o evento Community Launch em Londrina. O dia começou às 09:00h com abertura online realizada pela Microsoft (Rodrigo Dias, Fabio Hara e Rogério Cordeiro), apresentando a Copa Microsoft de Talentos, informações sobre o Road Show <LINK> e produtos Microsoft que estarão no foco deste ano. Após a abertura, alguns influenciadores Microsoft da região apresentaram algumas palestras técnicas, mais voltadas a DEV, sobre os assuntos: As Novidades da Plataforma .NET (André Nobre) - Download Entity Framework 4 (Carlos dos Santos) Silverlight 4 (Marcio Althmann) A minha apresentação foi focada em 3 novidades que podem ser aplicadas no dia-a-dia dos participantes, algo bem pontual, envolvendo web forms, paralelismo e Dynamic Language Runtime. O destaque (IMHO) fica para o paralelismo, algo totalmente aplicável nas aplicações, que nos dá um resultado incrível. Apesar de já existir anteriormente, o fato de estar embutido na plataforma incentiva a rápida adoção da tecnologia. Apenas para formalizar, nos próximos dias vamos lançar localmente as reuniões presenciais para discussões técnicas do grupo Sharpcode. Se você tem interesse, e está na região de Londrina, participe! Abraços!

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• Not Playing Nice Together

  - by David Douglass

  One of the things I’ve noticed is that two industry trends are not playing nice together, those trends being multi-core CPUs and massive hard drives.  It’s not a problem if you keep your cores busy with compute intensive work, but for software developers the beauty of multi-core CPUs (along with gobs of RAM and a 64 bit OS) is virtualization.  But when you have only one hard drive (who needs another when it holds 2 TB of data?) you wind up with a serious hard drive bottleneck.  A solid state drive would definitely help, and might even be a complete solution, but the cost is ridiculous.  Two TB of solid state storage will set you back around $7,000!  A spinning 2 TB drive is only $150. I see a couple of solutions for this.  One is the mainframe concept of near and far storage: put the stuff that will be heavily access on a solid state drive and the rest on a spinning drive.  Another solution is multiple spinning drives.  Instead of a single 2 TB drive, get four 500 GB drives.  In total, the four 500 GB drives will cost about $100 more than the single 2 TB drive.  You’ll need to be smart about what drive you place things on so that the load is spread evenly.  Another option, for better performance, would be four 10,000 RPM 300 GB drives, but that would cost about $800 more than the singe 2 TB drive and would deliver only 1.2 TB of space. All pricing based on Microcenter as of March 14, 2010.

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• Experience with MooseFS?

  - by brown.2179

  Anyone have any experience using MooseFS? I want an easy distributed storage platform to store static data archive of about 10 TB and serve it to 20-40 nodes. Also I want to be able to add storage as the archive grows without having to rebuild the filesystem. I don't care if it's a bit slow. I just want it to be simple and stable. Basically from what I can see for OS X it's between MooseFS and Gluster. Any other suggestions?

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• "powershell has stopped working" on PS exit after creating IIS User

  - by Nick Jones

  On a Windows Server 2012 box, I'm using PS to create a new IIS User (for automated deployments using MSDeploy). The command itself appears to work fine -- the user is created -- but as soon as I exit my PowerShell session (typing exit or just closing the command window), a dialog is displayed stating "powershell has stopped working", with the following details: Problem signature: Problem Event Name: PowerShell NameOfExe: powershell.exe FileVersionOfSystemManagementAutomation: 6.2.9200.16628 InnermostExceptionType: Runtime.InteropServices.InvalidComObject OutermostExceptionType: Runtime.InteropServices.InvalidComObject DeepestPowerShellFrame: unknown DeepestFrame: System.StubHelpers.StubHelpers.GetCOMIPFromRCW ThreadName: unknown OS Version: 6.2.9200.2.0.0.400.8 Locale ID: 1033 The PS commands in question are: [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Web.Management") [Microsoft.Web.Management.Server.ManagementAuthentication]::CreateUser("Foo", "Bar") Why is this happening and how can I avoid it? EDIT: I've also confirmed this be a problem with PowerShell 4.0, so I've added that tag. I've also submitted it on Connect. UPDATE: It appears that Windows Server 2012 R2 does not have this same bug.

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• Reboot loop after sysprep of AD machine

  - by rboarman

  Major screw-up here and I need to find out how much trouble I am in. I have an AD machine that is running Server 2008 R2, hyperv, DHCP and DNS. On the hyperv machine, I have a backup AD instance running along with a handfull of other server 2008 instances. Sysprep was run on the hyperv machine instead of one of the instances. I am attempting to bring the machine back up so I can try a system restore. When I boot the hyperv machine, I get an error that says “Windows could not complete the installation. To install windows on this computer , restart the installation” This message occurs in safe mode, AD restore mode and in last known configuration mode. How can I get my OS to boot at this point? Do I need to reinstall 2008 R2 from scratch?

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• read and write permission for FAT32 partition in Ubuntu

  - by Dean

  This is a strange problem. I have the following partition table Device Boot Start End Blocks Id System /dev/sda1 * 1 13 102400 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 13 5737 45978624 7 HPFS/NTFS /dev/sda3 5738 10600 39062047+ 83 Linux /dev/sda4 10601 19457 71143852+ 5 Extended /dev/sda5 10601 11208 4883728+ 82 Linux swap / Solaris /dev/sda6 11209 15033 30720000 b W95 FAT32 /dev/sda7 15033 19457 35537920 7 HPFS/NTFS I dual boot Win7 (sda2) and Ubuntu (sda3) and wanted to use the FAT23 partition to share files across two OS's. I followed some online tutorial and have done these: sudo mkdir /media/FAT32 sudo chmod 777 /media/FAT32 sudo mount /dev/sda6/ /media/FAT32 after I mounted the file, I can only read but not be able to write to it. I checked the file permission, it becomes: drwxr-xr-x but after I unmounted the it then becomes drwxrwxrwx and I can read and write to it. very strange. I don't know where I've down wrong. Cheers.

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• How to scale page size down in Adobe Acrobat X Pro?

  - by WilliamKF

  I scanned a document on a scanner at a friend's house and the pdf ended up being 35 inches by 45 inches in size. I think this the cause of the trouble had for the person I sent it to, they get the error "insufficient image". How can I scale this down in Adobe Acrobat X Pro to a normal 8.5x11 inch sheet so that I can see if that resolves their issue and I can share the document with them. I cannot rescan the document, as I no longer have it. Acrobat is running on Windows 7 OS. The scanner was an HP OfficeJet Pro L7650 All-in-one.

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• How can I get Virtual Server 2005 R2 running on Windows Server 2008 R2?

  - by Bret Fisher

  For various reasons (old VT-less hardware, and .vhd support) we need to still run Virtual Server 2005 R2. It's just for lab/demo work but we'd like to run the host on the newest Windows OS possible. It's documented and at least partially supported to run the old Virtual Server 2005 R2 SP1 on Windows Server 2008 (non-R2). I've done that before. I'm wondering if anyone has gotten the scenario in the title above to work. This post says it's possible but has anyone here actually done it before I go through that process: http://blogs.infosupport.com/blogs/ericd/archive/2009/08/31/running-virtual-server-2005-r2-sp1-on-windows-server-2008-r2.aspx

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• How to add “chapters” or “bookmarks” to movies?

  - by Tony

  Is there an easy way to add chapters to existing movie files? Note: Actually, I’m not 100% sure if they’re called “chapters” in video files, but it’s the same concept as DVDs. I assume this differs with the video encoding, but any help at all is progress! I have video files in various formats (although .mov, .mp4, and .m4v are my most common). I’m on Mac OS X, but I posted here (instead of the Apple Q&A) because I figured any answers may be useful to other non-Apple power users. Apple-native, application-based solutions preferred (usability is top of my list). However, command-line programs and utilities that do the job are just as welcome. Please share any indirect-but-related wisdom you may have on this topic. Thanks!

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• Enabling 32-Bit Applications on IIS7 (also affects 32-bit oledb or odbc drivers) [Solved]

  - by Humprey Cogay, C|EH

  We just bought a new Web Server, after installing Windows 2008 R2(which is a 64bit OS and IIS7), SQL Server Standard 2008 R2 and IBM Client Access for V5R3 with its Dot Net Data Providers, I tried deploying our new project which is fully functional on an IIS6 Based Web Server, I encountered this Error The 'IBMDA400.DataSource.1' provider is not registered on the local machine. To remove the doubt that I still lack some Software Pre-Requesites or version conflicts  since I encountered some erros while installing my IBM Client Access, I created a Connection Tester which is Windows App that accepts a connection string as a parameter and verifies if that parameter is valid. After entering the Proper Conn String I tried hitting the button and the Test was Succesful. So now I trimmed my suspects to My Web App and IIS7. After Googling around I found this post by a Rakki Muthukumar(Microsoft Developer Support Engineer for ASP.NET and IIS7) http://blogs.msdn.com/b/rakkimk/archive/2007/11/03/iis7-running-32-bit-and-64-bit-asp-net-versions-at-the-same-time-on-different-worker-processes.aspx So I tried scouting on IIS7's management console and found this little tweak under the Application Pool where my App is a member of. After changing this parameter to TRUE Yahoo (although I'm a Google kind of person) the Web App Works .......

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• IPv6 address is not working in Ubuntu

  - by Alex Farber

  Telnet connection with echo service succeeds for localhost and 127.0.0.1 host names, but fails with ::1 host name: alex@u120432:~$ telnet localhost 7 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 123 123 ^] telnet q Connection closed. alex@u120432:~$ telnet ::1 7 Trying ::1... telnet: Unable to connect to remote host: Connection refused alex@u120432:~$ My own program trying to talk using IPv6 address fails as well. Why IPv6 address is rejected? OS: Ubuntu 12.04 32 bit.

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• SmartOS Virtualization with one public IP address

  - by matejkramny

  Is it possible? (title of this question) Googling Virtualization with one public IP address yields nothing useful What I have: SmartOS on a dedicated server. Dedicated server has one public IP address. What I want to do: Host multiple guest OS from that server Problem: Access to the guest through the (server that virtualizes the guest)'s IP address. Is this possible at all? Sorry, newbie to all this Research http://www.machine-unix.com/beginning-with-smartos/#comment-7256 Does not solve my problem - the guide sets up an internal IP http://blog.bgentil.fr/smartos-use-global-zone-as-gateway-for-guests.html Ideas Perhaps it is possible to do host-based translation like with nginx proxy?

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• The Scoop: Oracle E-Business Suite Support on 64-bit Linux

  - by Terri Noyes

  This article addresses frequently asked questions about Oracle E-Business Suite (EBS) 64-bit Linux support.Q:  Which 64-bit Linux OSs are supported for EBS? A: Beginning with Release 12, we support the following 64-bit operating systems for both application and database tiers on x86-64 servers:Oracle Enterprise Linux Red Hat Enterprise Linux SUSE Linux Enterprise Server For EBS Release 11i (and again in Release 12), when the application tier is installed on a certified platform, additional platforms (including the above) may be used for a 64-bit database tier on x86-64 servers. This is an example of a mixed platform architecture (Release 12), or a Split Configuration (Release 11i). Q:  I understand that the EBS application tier code is 32-bit, even for the 64-bit Linux OS -- is this the case?A: It is true that the majority of executables provided as part of our release media on the application tier are 32-bit (as are the Fusion Middleware libraries and objects they depend on).  However, the 'Planning' products have large memory requirements and therefore are 64-bit compiled to take advantage of the larger memory space afforded by the 64-bit OS'es.

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• How to install Snow Leopard Server over Regular Snow Leopard

  - by SeniorShizzle

  I'm in the ADC so I have legitimate access to a free copy of Snow Leopard Server and licence key which I need to use to test my Push Notifications. I downloaded the software, and when I opened the .dmg I saw "Click to install Snow Leopard Server" which I did, and then it prompted me to restart the computer to begin installation. When the computer restarted, however, it just booted into my regular OS X partition. I kept trying to no avail. Obviously I'm missing something stupid here but I'm not a server admin so I don't know what to do :) The dmg is almost 6GB so I can't burn a DVD of it. I really need your help! Thanks guys!

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• XenServer 5.6.1-fp1. Can't get network working

  - by bakytn

  I have a PC where XenServer 5.6.1 fp-1 has been successfully installed. I've manually set the network settings: 192.168.1.50 255.255.255.0 192.168.1.1 but it's set to xenbr0 iface. While eth0 is empty. When I click on "Configure Management Inteface" it shows that eth0 is connected. But when I ping a default gateway (which is 100% should be accessible) it fails. I used to another shell (Alt+F3) and logged as root. I also failed to ping. with both: ping -I eth0 192.168.1.1 and ping -I xenbr0 192.168.1.1 Be assured that: Cable works Ethernet adapter is 100% functional (prev OS was Ubuntu it was working) There is no firewall rule to deny anything. (everything is allowed)

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• Windows Ce 6.0 loses Windows credentials when viewing a web site that's running on Windows 2008 server

  - by gnomixa

  When a user views a web page (with integrated Windows authentication) on WindowsCE 6.0 device, the authentication is lost sporadically. The page being viewed is running on Windows 2008 server. We never had the same issue with Windows 2003 server. The credentials were being asked once and cached for a certain time. My question is: has anything changed in Windows 2008 that doesn't pass the credentials the same way to WindowsCE? The only variable in this scenario is the web server OS - Windows 2003 vs WIndows 2008. Any help would be appreciated, thanks!

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• How can I recover data after mistakenly clean-installed 12.04 over 11.10?

  - by T.Kannan

  I recently got a Ubuntu 12.04 LTS i386 DVD Rom and Ubuntu 12.04 LTS alternate cd from the zyxware.com because I don't have a broadband personal connection at home, I am using only the office INTERNET. I have a Dell Inspiron Laptop core 2 duo Processor with 2GB Ram dual boot of Ubuntu 11.10 and Windows Vista. I tried to upgrade My existing fully equipped streamlined Ubuntu 11.10 OS with lot of documents and socialized application packages which have been frequently used by me for the last one year. First I tried to install upgradation from the Ubuntu 12.04 LTS alternate cd while ubuntu 11.10 is on, but every time I got a error message and I couldn't upgrade either thro desktop or through terminal. Then I tried Ubuntu 12.04 LTS i386 DVD the boot option to DVD, I tried to upgrade from existing 11.10 to 12.04 LTS Option, then Upgrading Installation started well and finally got a message Installation completed successfully, Asked for reboot, I rebooted then I have hot a Ubuntu 12.04 LTS Login and I logged on, I have got a big shock that there is everything washed away in the home folders ( all datas, Music collections and vedios etc), all the application installed early in 11.10 were gone nothing left. Now I have got only 12.04 LTS, even It is asking for me to update around 350 mb through net connection. How It was a crazy Ubuntu, It is not a up-gradation, new installation is not it? I loosed everthing, at the end I got the same desktop screen like Ubuntu 11.10. Anybody knows about what gone wrong and if any possibility to recover my datas? Please help me. I want to Know that which method is stable to Upgrade existing Ubunt11.10

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• Java Spotlight Episode 105: Mark Reinhold on the Future of Java

  - by Roger Brinkley

  Our yearly interview with Mark Reinhold, Chief Java Architect, Java Platform Group on the future of Java. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes News Two Java Update Releases New Java SE 6 software updates from Apple for OS X 10.8, 10.7 and 10.6 are now live and available to all customers via the Mac App Store / Software Update. The JavaFX Community Site on Java.net JSR 360: Connected Limited Device Configuration 8 JSR 361: Java ME Embedded Profile 2012 JCP EC Election Ballot open Meet the EC Candidates Recording and Materials Events Oct 22-23, Freescale Technology Forum - Japan, Tokyo, Japan Oct 23-25, EclipseCon Europe, Ludwigsburg, Germany Oct 30-Nov 1, Arm TechCon, Santa Clara, United States of America Oct 31, JFall, Hart van Holland, Netherlands Nov 2-3, JMaghreb, Rabat, Morocco Nov 5-9, Øredev Developer Conference, Malmö, Sweden Nov 13-17, Devoxx, Antwerp, Belgium Nov 20-22, DOAG 2012, Nuremberg, Germany Dec 3-5, jDays, Göteborg, Sweden Dec 4-6, JavaOne Latin America, Sao Paolo, Brazil Feature InterviewMark Reinhold is Chief Architect of the Java Platform Group at Oracle, where he works on the Java Platform, Standard Edition, and OpenJDK. His past contributions to the platform include character-stream readers and writers, reference objects, shutdown hooks, the NIO high-performance I/O APIs, library generification, and service loaders. Mark was the lead engineer for the 1.2 and 5.0 releases and the specification lead for Java SE 6. He is currently leading the Jigsaw and JDK 7 Projects in the OpenJDK Community. Mark holds a Ph.D. in Computer Science from the Massachusetts Institute of Technology. In this interview he discusses the future of Java Platform with regards to Jigsaw, Lambda, and Nashorn components as well as the OpenJDK community. What’s Cool QotD: Ubuntu 12.10 Release Notes on OpenJDK 7 New Lambda binary drop Development forest for Compact Profiles (JEP 161)

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• How do I install an HP home-use printer on Windows Home Server (Windows Server 2003)

  - by Rob Allen

  I have an HP DeskJet F4210 printer that I would like to share on my network via Windows Home Server. Unfortunately, the driver installation checks for supported OS's, detects Home Server as Windows Server 2003 and exits. The driver install supports WinXP, W2k, Vista, and Win98SE. In theory, drivers for XP or Windows 2000 should work fine with Home Server. When using the "Install Printer" tool in Home Server I am only able to select .inf files (there are serveral on the install media) but the driver folders for XP and 2000 have .sys and .dll files. How can I bypass HP's short-sighted install program and get this printer up and running on Home server? I'll be happy with basic print functionality and will save the task of enabling scanning for another time.

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• How to add programs in context menu on desktop at one context name?

  - by tonni

  Hello I'm searching for answer how to put programs (not program) in context menu of desktop at one context name? Example: I want to create new context name which can be extendable to put inside more programs. That is like "New" or "View" that show as more options after using it. Here is what i tried (and is working when you want to put one program to desktop): I created in registry "New Folder" with name of some programs (i.e. "notepad") inside of this location HKEY_CLASSES_ROOT\Directory\Background\shell\ Inside of new created folder ("notepad") i put one more time "New Folder" and name it "command" (must be same name) Inside of "command" at string ("Default") put the location through notepad ("C:\Windows\system32\notepad.exe") - and now when you click right mouse button on desktop will see new context text with name "notepad" what will of course open notepad if you use them Well what i'm searching for is to find solution of how to make context name which will offer as to use more that one programs, do you have any solution? O.S. win 7

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• GUI tool for packet replay

  - by superuser

  Is there a freeware Windows/Linux GUI packet replay tool that has the advanced features of tcpreplay (http://tcpreplay.synfin.net/) or bittwist (http://bittwist.sourceforge.net)? I'm particularly interested in the following features: Open pcap files for editing and injecting into arbitrary network Change source and destination addresses/ports of UDP packets Change packet timing (with millisecond resolution) Edit packet contents, including modifying its length Has graphical front end for Windows or Linux (or Mac OS X) I've scanned a couple lists of potential tools (here and here), but nothing really fits my requirements. The closest tool might be Ostinato (http://code.google.com/p/ostinato/), but it doesn't appear to open packet capture files. Thanks for any help!

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• Missing NIC and USB devices

  - by MJ

  Coming into work today, I've found we have a fwe different computers (different companies/networks/OS versions - all windows based) that are all having the same issue. 1) Network NIC is not able to be viewed from network connections. If you refresh, its saying the service is not started. Services state the service is started and running. 2) USB devices are not recognized when plugged in, scan for hardware changes, etc. We have managed AV, that is kept up to date, and a managed patch policy that has all these machines at the most recent patch. I'm just wondering if anyone else has experienced these same symptoms, and what they have done to resolve them.

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• very long boot up with Ubuntu 10.04.4

  - by wt70707

  I installed Ubuntu 10.04.3 on Atom. Then I do the update and upgrade with: #apt-get update #apt-get upgrade #apt-get dist-upgrade The system can boot up now but in almost 2 minutes. After power on and system test, it will stop at "Verifying DMI pool data" for 10 seconds before the GRUB menu comes up. Then after the choosing of one item, to the start up of OS there is 100 seconds of black screen. The start up after that is normal and the operations in the system is also normal. I am concerned with if it is of hardware problem, or just some problem with the kernel. Also I want to know after "Verifying DMI pool data" what is done? And after we choose an item in GRUB menu, what does the system do? And where can I see the procedure of the whole boot up? The /var/log/boot.log is too simple, and this is it: fsck from util-linux-ng 2.17.2 fsck from util-linux-ng 2.17.2 /dev/mmcblk0p5: clean, ...... /dev/mmcblk0p1: clean, ...... * Starting AppArmor profiles Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox OK] * Setting sensors limits OK]

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