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• 11gR2 11.2.0.3 Database Certified with E-Business Suie

  - by Elke Phelps (Oracle Development)

  The 11gR2 11.2.0.2 Database was certified with E-Business Suite (EBS) 11i and EBS 12 almost one year ago today.  I’m pleased to announce that 11.2.0.3, the second patchset for the 11gR2 Database is now certified. Be sure to review the interoperability notes for R11i and R12 for the most up-to-date requirements for deployment. This certification announcement is important as you plan upgrades to the technology stack for your environment. For additional upgrade direction, please refer to the recently published EBS upgrade recommendations article. Database support implications may also be reviewed in the database patching and support article. Oracle E-Business Suite Release 11i Prerequisites 11.5.10.2 + ATG PF.H RUP 6 and higher Certified Platforms Linux x86 (Oracle Linux 4, 5) Linux x86 (RHEL 4, 5) Linux x86 (SLES 10) Linux x86-64 (Oracle Linux 4, 5) -- Database-tier only Linux x86-64 (RHEL 4, 5) -- Database-tier only Linux x86-64 (SLES 10--Database-tier only) Oracle Solaris on SPARC (64-bit) (10) Oracle Solaris on x86-64 (64-bit) (10) -- Database-tier only Pending Platform Certifications Microsoft Windows Server (32-bit) Microsoft Windows Server (64-bit) HP-UX PA-RISC (64-bit) HP-UX Itanium IBM: Linux on System z  IBM AIX on Power Systems Oracle E-Business Suite Release 12 Prerequisites Oracle E-Business Suite Release 12.0.4 or later; or,Oracle E-Business Suite Release 12.1.1 or later Certified Platforms Linux x86 (Oracle Linux 4, 5) Linux x86 (RHEL 4, 5) Linux x86 (SLES 10) Linux x86-64 (Oracle Linux 4, 5) Linux x86-64 (RHEL 4, 5) Linux x86-64 (SLES 10) Oracle Solaris on SPARC (64-bit) (10) Oracle Solaris on x86-64 (64-bit) (10)  -- Database-tier only Pending Platform Certifications Microsoft Windows Server (32-bit) Microsoft Windows Server (64-bit) HP-UX PA-RISC (64-bit) IBM: Linux on System z IBM AIX on Power Systems HP-UX Itanium Database Feature and Option CertificationsThe following 11gR2 11.2.0.2 database options and features are supported for use: Advanced Compression Active Data Guard Advanced Security Option (ASO) / Advanced Networking Option (ANO) Database Vault  Database Partitioning Data Guard Redo Apply with Physical Standby Databases Native PL/SQL compilation Oracle Label Security (OLS) Real Application Clusters (RAC) Real Application Testing SecureFiles Virtual Private Database (VPD) Certification of the following database options and features is still underway: Transparent Data Encryption (TDE) Column Encryption 11gR2 version 11.2.0.3 Transparent Data Encryption (TDE) Tablespace Encryption 11gR2 version 11.2.0.3 About the pending certifications Oracle's Revenue Recognition rules prohibit us from discussing certification and release dates, but you're welcome to monitor or subscribe to this blog for updates, which I'll post as soon as soon as they're available.     EBS 11i References Interoperability Notes - Oracle E-Business Suite Release 11i with Oracle Database 11g Release 2 (11.2.0) (Note 881505.1) Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 11i (Note 823586.1) Encrypting Oracle E-Business Suite Release 11i Network Traffic using Advanced Security Option and Advanced Networking Option (Note 391248.1) Using Transparent Data Encryption with Oracle E-Business Release 11i (Note 403294.1) Integrating Oracle E-Business Suite Release 11i with Oracle Database Vault 11gR2 (Note 1091086.1) Using Oracle E-Business Suite with a Split Configuration Database Tier on Oracle 11gR2 Version 11.2.0.1.0 (Note 946413.1) Export/Import Process for Oracle E-Business Suite Release 11i Database Instances Using Oracle Database 11g Release 1 or 2 (Note 557738.1) Database Initialization Parameters for Oracle Applications Release 11i (Note 216205.1) EBS 12 References Interoperability Notes - Oracle E-Business Suite Release 12 with Oracle Database 11g Release 2 (11.2.0) (Note 1058763.1) Database Initialization Parameters for Oracle Applications Release 12 (Note 396009.1) Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 (Note 823587.1) Using Transparent Data Encryption with Oracle E-Business Suite Release 12 (Note 732764.1) Integrating Oracle E-Business Suite Release 12 with Oracle Database Vault 11gR2 (Note 1091083.1) Export/Import Process for Oracle E-Business Suite Release 12 Database Instances Using Oracle Database 11g Release 1 or 11g Release 2 (Note 741818.1) Enabling SSL in Oracle Applications Release 12 (Note 376700.1) Related Articles 11gR2 Database Certified with E-Business Suite 11i 11gR2 Database Certified with E-Business Suite 12 11gR2 11.2.0.2 Database Certified with E-Business Suite 12 Can E-Business Users Apply Database Patch Set Updates? On Apps Tier Patching and Support: A Primer for E-Business Suite Users On Database Patching and Support:  A Primer for E-Business Suite Users Quarterly E-Business Suite Upgrade Recommendations;  October 2011 Edition The preceding is intended to outline our general product direction.  It is intended for information purposes only, and may not be incorporated into any contract.   It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decision.  The development, release, and timing of any features or functionality described for Oracle's products remains at the sole discretion of Oracle.

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• Help! Online upgrade from 12.04 to 14.04 stuck

  - by Luis

  I was trying to upgrade my Lenovo T500 laptop from Kubuntu 12.04 LTS to Kubuntu 14.04 LTS. Fired up the upgrade process, and finally after downloading a zillion packages the upgrade got going, only to get stuck... It has been stuck for hours on: Installing the upgrades->Unpacking subversion Last lines of error messages: GLib-GObject-CRITICAL **: /build/buildd/glib2.0-2.32.4/./gobject/gtype.c:2722: You forgot to call g_type_init() at /usr/lib/perl/5.18/DynaLoader.pm line 207. GLib-CRITICAL **: g_once_init_leave: assertion `result != 0' failed at /usr/lib/perl/5.18/DynaLoader.pm line 207. I don't care much about subversion anymore, I use git now; I don't care if subversion ends up in a bad state and I have to remove it... I just want the upgrade to continue, and hopefully complete. Any ideas???? Thanks, Luis

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• How to Buy an SD Card: Speed Classes, Sizes, and Capacities Explained

  - by Chris Hoffman

  Memory cards are used in digital cameras, music players, smartphones, tablets, and even laptops. But not all SD cards are created equal — there are different speed classes, physical sizes, and capacities to consider. Different devices require different types of SD cards. Here are the differences you’ll need to keep in mind when picking out the right SD card for your device. Speed Class In a nutshell, not all SD cards offer the same speeds. This matters for some tasks more than it matters for others. For example, if you’re a professional photographer taking photos in rapid succession on a DSLR camera saving them in high-resolution RAW format, you’ll want a fast SD card so your camera can save them as fast as possible. A fast SD card is also important if you want to record high-resolution video and save it directly to the SD card. If you’re just taking a few photos on a typical consumer camera or you’re just using an SD card to store some media files on your smartphone, the speed isn’t as important. Manufacturers use “speed classes” to measure an SD card’s speed. The SD Association that defines the SD card standard doesn’t actually define the exact speeds associated with these classes, but they do provide guidelines. There are four different speed classes — 10, 8, 4, and 2. 10 is the fastest, while 2 is the slowest. Class 2 is suitable for standard definition video recording, while classes 4 and 6 are suitable for high-definition video recording. Class 10 is suitable for “full HD video recording” and “HD still consecutive recording.” There are also two Ultra High Speed (UHS) speed classes, but they’re more expensive and are designed for professional use. UHS cards are designed for devices that support UHS. Here are the associated logos, in order from slowest to fastest:       You’ll probably be okay with a class 4 or 6 card for typical use in a digital camera, smartphone, or tablet. Class 10 cards are ideal if you’re shooting high-resolution videos or RAW photos. Class 2 cards are a bit on the slow side these days, so you may want to avoid them for all but the cheapest digital cameras. Even a cheap smartphone can record HD video, after all. An SD card’s speed class is identified on the SD card itself. You’ll also see the speed class on the online store listing or on the card’s packaging when purchasing it. For example, in the below photo, the middle SD card is speed class 4, while the two other cards are speed class 6. If you see no speed class symbol, you have a class 0 SD card. These cards were designed and produced before the speed class rating system was introduced. They may be slower than even a class 2 card. Physical Size Different devices use different sizes of SD cards. You’ll find standard-size CD cards, miniSD cards, and microSD cards. Standard SD cards are the largest, although they’re still very small. They measure 32x24x2.1 mm and weigh just two grams. Most consumer digital cameras for sale today still use standard SD cards. They have the standard “cut corner”  design. miniSD cards are smaller than standard SD cards, measuring 21.5x20x1.4 mm and weighing about 0.8 grams. This is the least common size today. miniSD cards were designed to be especially small for mobile phones, but we now have a smaller size. microSD cards are the smallest size of SD card, measuring 15x11x1 mm and weighing just 0.25 grams. These cards are used in most cell phones and smartphones that support SD cards. They’re also used in many other devices, such as tablets. SD cards will only fit into marching slots. You can’t plug a microSD card into a standard SD card slot — it won’t fit. However, you can purchase an adapter that allows you to plug a smaller SD card into a larger SD card’s form and fit it into the appropriate slot. Capacity Like USB flash drives, hard drives, solid-state drives, and other storage media, different SD cards can have different amounts of storage. But the differences between SD card capacities don’t stop there. Standard SDSC (SD) cards are 1 MB to 2 GB in size, or perhaps 4 GB in size — although 4 GB is non-standard. The SDHC standard was created later, and allows cards 2 GB to 32 GB in size. SDXC is a more recent standard that allows cards 32 GB to 2 TB in size. You’ll need a device that supports SDHC or SDXC cards to use them. At this point, the vast majority of devices should support SDHC. In fact, the SD cards you have are probably SDHC cards. SDXC is newer and less common. When buying an SD card, you’ll need to buy the right speed class, size, and capacity for your needs. Be sure to check what your device supports and consider what speed and capacity you’ll actually need. Image Credit: Ryosuke SEKIDO on Flickr, Clive Darra on Flickr, Steven Depolo on Flickr

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• Salt and hash a password in .NET

  - by Jon Canning

  I endeavoured to follow the CrackStation rules: Salted Password Hashing - Doing it Right    public class SaltedHash     {         public string Hash { get; private set; }         public string Salt { get; private set; }         public SaltedHash(string password)         {             var saltBytes = new byte[32];             new RNGCryptoServiceProvider().GetNonZeroBytes(saltBytes);             Salt = ConvertToBase64String(saltBytes);             var passwordAndSaltBytes = Concat(password, saltBytes);             Hash = ComputeHash(passwordAndSaltBytes);         }         static string ConvertToBase64String(byte[] bytes)         {             return Convert.ToBase64String(bytes);         }         static string ComputeHash(byte[] bytes)         {             return ConvertToBase64String(SHA256.Create().ComputeHash(bytes));         }         static byte[] Concat(string password, byte[] saltBytes)         {             var passwordBytes = Encoding.UTF8.GetBytes(password);             return passwordBytes.Concat(saltBytes).ToArray();         }         public static bool Verify(string salt, string hash, string password)         {             var saltBytes = Convert.FromBase64String(salt);             var passwordAndSaltBytes = Concat(password, saltBytes);             var hashAttempt = ComputeHash(passwordAndSaltBytes);             return hash == hashAttempt;         }     }

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• Installing Ubuntu 10.04 to external HDD overwrites the MBR of the internal HDD

  - by zkrpar

  I have a Asus A42F laptop which has Windows 7 32 bit installed on it's internal HDD. I have just installed Ubuntu 10.04 on a portable HDD using the laptop. Now my laptop does not boot Windows 7 if the portable HDD is disconnected. I can only get the boot menu when the portable HDD is connected. The portable HDD does not boot when connected to another computer. Please help me, I want to: Boot Windows from the internal drive, without GRUB Boot Ubuntu from the external drive via the BIOS boot menu (F8 or F12)

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• How to define AUTHPARAMS in Amazon EC2 API call

  - by The Joker

  I am trying to make an API call to EC2. I want to add my IP address to the security group. https://ec2.amazonaws.com/ ?Action=AuthorizeSecurityGroupIngress &GroupName=grppp20 &GroupId=sg-b2z982mq &IpPermissions.1.IpProtocol=tcp &IpPermissions.1.FromPort=3389 &IpPermissions.1.ToPort=3389 &IpPermissions.1.IpRanges.1.CidrIp=22.951.17.728/32 &&AWSAccessKeyId=AOPLDRACULALK6U7A And i get the following error. AWS was not able to validate the provided access credentials I have a secret access key & a username. I searched internet & found that we have to make a signature of the secret key & use it in the request instead of adding it directly. Can anyone tell me how to make a signature of my AWS secret key & how to use them with my API call? Let my secret key be: 2WwRiQzBs7RTFG4545PIOJ7812CXZ Username: thejoker

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• How to comply with this guideline for submitting an application to the Software Center?

  - by George Edison

  I was reading through the Ubuntu Developer Programme Agreement for submitting applications to the Software Center and stubled across the following clause: 3.1 You must first test Apps you submit to confirm they are compatible with all currently supported versions of Ubuntu (as listed on Canonical's website at the date of submission by you) and your Apps must comply with the Publishing Policy. Does this mean I must install both the 32 and 64 bit versions of Ubuntu 8.04, 10.04, 10.10, 11.04, and 11.10? If so, that's 10 installations of Ubuntu - is that really feasible (even with virtual machines)? Alternatively, does anyone have suggestions for testing the application without actually installing each version? Some sort of chroot tool, perhaps?

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• Winetricks fails to find program files directory

  - by EgyptLovesUbuntu

  I installed a fresh copy of Ubuntu 12 desktop then: Installed WINE from the Ubuntu Software Center. Installed WineTricks from the Ubuntu Software Center. When I type the following commands in the terminal: sudo winetricks dotnet40 I get this error message: wine cmd.exe /c echo '%ProgramFiles%' returned empty string If i try the command without sudo winetricks dotnet40 The output is as follows Executing w_do_call dotnet40 Executing load_dotnet40 ------------------------------------------------------ dotnet40 does not yet fully work or install on wine. Caveat emptor. ------------------------------------------------------ Executing mkdir -p /home/vectoruser/.cache/winetricks/dotnet40 mkdir: cannot create directory `/home/vectoruser/.cache/winetricks/dotnet40': Permission denied ------------------------------------------------------ Note: command 'mkdir -p /home/vectoruser/.cache/winetricks/dotnet40' returned status 1. Aborting. ------------------------------------------------------ My current user is vectoruser which i use to logon to Ubuntu The output of ls -ld /home/vectoruser /home/vectoruser/.cache /home/vectoruser/.cache/winetricks Gives: drwxr-xr-x 32 vectoruser vectoruser 4096 Aug 2 19:26 /home/vectoruser drwx------ 19 vectoruser vectoruser 4096 Aug 2 19:25 /home/vectoruser/.cache drwxr-xr-x 2 root root 4096 Aug 2 18:09 /home/vectoruser/.cache/winetricks

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• Arcad C1 3d cad

  - by borisha

  Recently I saw a version of Arcad in the Ubuntu software center. What kind of version is this? A trial version, evaluation version or full software for only 32 US? Second question. I tried to buy this software from software center but for some reason my transaction online couldn't end successfully. I contact my bank but they told me insufficent credit but is not possible. Anyway, is another way, like bank transfer order to buy this software?

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• Resource not found?

  - by SystemNetworks

  When I write in my terminal, java -jar myJar.jar, it gives me an error "Resource Not found res/playNow.png" When I run it in eclipse, it does not give me any errors about this image. My folder in my eclipse is outside my package called res and inside it are images. This is the full error Exception in thread "main" java.lang.RuntimeException: Resource not found: res/playNow.png at org.newdawn.slick.util.ResourceLoader.getResourceAsStream(ResourceLoader.java:69) at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:169) at org.newdawn.slick.Image.<init>(Image.java:196) at org.newdawn.slick.Image.<init>(Image.java:170) at org.newdawn.slick.Image.<init>(Image.java:158) at org.newdawn.slick.Image.<init>(Image.java:136) at javagame.Menu.init(Menu.java:31) at javagame.Game.initStatesList(Game.java:21) at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:164) at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:390) at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:314) at javagame.Game.main(Game.java:32) I'm using a terminal in my mac. How do I fix the error Resource Not Found? I'm using slick2d!

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• Lost transparency in SDL surfaces drawn manually

  - by Christian Ivicevic

  I want to create SDL_Surface objects for each layer of my 2d tile-based map so that I have to render only one surface per layer rather than too many tiles. With normal tiles which do not have transparent areas this works well, however I am not able to create a SDL_Surface with transparent pixels everywhere to be able to draw some tiles on specific parts which should be visible (I do NOT want the whole surface to appear with a specific opacity - I want to create overlaying tiles where one can look through). Currently I am creating my layers like this to draw with SDL_BlitSurface on them: SDL_Surface* layer = SDL_CreateRGBSurface( SDL_HWSURFACE | SDL_SRCALPHA, layerWidth, layerHeight, 32, 0, 0, 0, 0); If you have a look at this screenshot I have provided here you can see that the bottom layer with no transparent parts gets rendered correctly. However the overlay with the tree tile (which is transparent in the top left corner) is drawn own its own surface which is black and not transparent as expected. The expected result (concerning the transparency) can be seen here Can anyone explain me how to handle surfaces which are actually transparent rather than drawing all my overlay tiles separately?

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• Wine can't find gnome-keyring-pkcs11.so

  - by Jackie

  I am trying to start a program using wine on ubuntu lts 12.04 64 bit When I do this I get the following error message... /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: cannot open shared object file: No such file or directory When I try to symlink the 64 bit libraries, of course I get the following... jackie@jackie-Latitude-E6410:~/tmp/AC$ wine TTG.exe p11-kit: couldn't load module: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: wrong ELF class: ELFCLASS64 wine: Unhandled page fault on read access to 0x00000000 at address (nil) (thread 0009), starting debugger... err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr 0x7bc47aac Is there a package that installs the 32-bit as well as the 64bit? UPDATE: Appears to be a bug in Ubuntu w/ 1.4 https://launchpad.net/~ubuntu-wine/+archive/ppa I used these steps and my application worked http://www.noobslab.com/2012/04/install-wine-152-on-ubuntu.html Not sure exactly why but it appears to ignore the error if you use the 1.5.

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• Installing Ubuntu on a computer with USB 3.0 hardware

  - by Matt

  I'm installing Ubuntu 10.10 32-bit version on an HP Envy 15. I get the same problem these people have here: "unable to find a medium containing a live file system" error when installing but the question was never resolved. I spent so long researching and got so frustrated that I took my computer down to a shop and asked them to install it for me. It took them a while but they managed to get it installed. The reason for this error they had said was because Ubuntu didn't have the USB 3.0 drivers it needed to install properly. I'm reinstalling Ubuntu yet again and I've run into the same issue so my question is: does anyone know.. a) Where to get these USB 3.0 drivers? b) How to get them installed when installing the Ubuntu OS? Thanks, Matt

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• Need Drivers for D-link DWA 525 PCI Wireless adapter

  - by Hari

  I'm using Ubuntu 12.10 32-Bit Edition. I have racently purchased D-link DWA 525 PCI Wireless Adapter. But i can't find the drivers for the adapter. I have been searching in internet for a while. Tried many options, including ndiswrapper. When i run lspci command, it detects and shows as below. 04:00.0 Network controller: Ralink corp. RT5360 Wireless 802.11n 1T/1R My kernel version is 3.5.0-18-generic. Please help me out.

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• problem in installing mysqlworkbench 6

  - by pavan

  Ubuntu 13.04 - 32 bit (Reading database ... 216964 files and directories currently installed.) Unpacking mysql-workbench-community (from mysql-workbench-community-6.0.6-1ubu1304-i386.deb) ... dpkg: error processing mysql-workbench-community-6.0.6-1ubu1304-i386.deb (--install): trying to overwrite '/usr/share/mysql-workbench/model_view.glade', which is also in package mysql-workbench-data 5.2.40+dfsg-2ubuntu1 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for desktop-file-utils ... Processing triggers for gnome-menus ... Errors were encountered while processing: mysql-workbench-community-6.0.6-1ubu1304-i386.deb Please help..

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• Ubuntu Server available updates

  - by Rapture

  In Ubuntu 11.04 Server when I would log in via ssh it would tell me how many packages are available for updating in the welcome message. After upgrading to 11.10 I no longer get that information. Is there a package I need to install or a config file that needs changing? 11.04 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic x86_64) * Documentation: https://help.ubuntu.com/ 32 packages can be updated. 8 updates are security updates. Last login: Mon Nov 21 16:19:01 2011 from han-solo.local 11.10 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-server x86_64) * Documentation: https://help.ubuntu.com/11.10/serverguide/C No mail. Last login: Tue Nov 22 19:07:19 2011 from han-solo.local

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• Resetting Your Oracle User Password with SQL Developer

  - by thatjeffsmith

  There’s nothing more annoying than having to email, call, or log a support ticket to have one of your accounts reset. This is no less annoying in the Oracle database. Those pesky security folks have determined that your password should only be valid for X days, and your time is up. Time to reset the password! Except…you can’t log into the database to reset your password. What now? Wait a second, look at this nifty thing I see in SQL Developer: Right click on my connection, reset password not available! Why not? The JDBC Driver Doesn’t Support This Operation We can’t make this call over the Oracle JDBC layer, because it hasn’t been implemented. However our primary interface, OCI, does indeed support this. In order to use the Oracle Call Interface (OCI), you need to have an Oracle Client on your machine. The good news is that this is fairly easy to get going. The Instant Client will do. You have two options, the full or ‘Lite’ Instant Clients. If you want SQL*Plus and the other client tools, go for the full. If you just want the basic drivers, go for the Lite. Either of these is fine, but mind the bit level and version of Oracle! Make sure you get a 32 bit Instant Client if you run 32 bit SQL Developer or 64 bit if you run 64 Here’s the download link What, you didn’t believe me? Mind the version of Oracle too! You want to be at the same level or higher of the database you’re working with. You can use a 11.2.0.3 client with 11.2.0.1 database but not a 10gR2 client with 11gR2 database. Clear as mud? Download and Extract Put it where you want – Program Files is as good as place as any if you have the rights. When you’re done, copy that directory path you extracted the archive to, because we’re going to add it to your Windows PATH environment variable. The easiest way to find this in Windows 7 is to open the Start dialog and type ‘path’. In Windows 8 you’ll cast your spell and wave at your screen until something happens. I recommend you put it up front so we find our DLLs first. Now with that set, let’s start up SQL Developer. Check the Connection Context menu again Bingo! What happened there? SQL Developer looks to see if it can find the OCI resources. Guess where it looks? That’s right, the PATH. If it finds what it’s looking for, and confirms the bit level is right, it will activate the Reset Password option. We have a Preference to ‘force’ an OCI/THICK connection that gives you a few other edge case features, but you do not need to enable this to activate the Reset Password. Not necessary, but won’t hurt anything either. There are a few actual benefits to using OCI powered connections, but that’s beyond the scope of today’s blog post…to be continued. Ok, so we’re ready to go. Now, where was I again? Oh yeah, my password has expired… Right click on your connection and now choose ‘Reset Password’ You’ll need to know your existing password and select a new one that meets your databases’s security standards. I Need Another Option, This Ain’t Working! If you have another account in the database, you can use the DBA Panel to reset a user’s password, or of course you can spark up a SQL*Plus session and issue the ALTER USER JEFF IDENTIFIED BY _________; command – but you knew this already, yes? I need more help ‘installing’ the Instant Client, help! There are lots and lots of resources out there on this subject. But I also know from personal experience that many of you have problems getting this to ‘work.’ The key things to remember is to download the right bit level AND make sure the client install directory is in your path. I know many folks that will just ‘install’ the Instant Client directly to one of their ‘bin’ type directories. You can do that if you want, but I prefer the cleaner method. Of course if you lack admin privs to change the PATH variable, that might be your only option. Or you could do what the original ORA- message indicated and ‘contact your DBA.’

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• How do I install an older 2.6.37 Kernel Version?

  - by Seyed Mohammad

  I have a Sony VAIO P netbook and for several issues (graphics driver, audio driver and power management), I want to install an older version of the Linux kernel on Ubuntu 11.10 (actually its Xubuntu) that seems to be much more suitable. So I searched for Ubuntu kernels and found this link which includes all versions of the Linux kernel distributed by Ubuntu. I am looking for a version before 2.6.38 (to escape the known power management issue) and of course solve my many driver problems! I guess my best bet is 2.6.37 but there are several 2.6.37.x-x kernels! Can someone point me to the right choice? In each folder (for example: this one) there are several DEB packages. Which packages should I install? (Note: I have a 32-bit system) What is the installation process? sudo dpkg -i *.deb ? Is this fine or additional steps are required? Thanks.

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• Chainload boot of Ubuntu installed on 32GB SD card from legacy Grub boot on USB

  - by Gary Darsey

  I have Ubuntu installed on a 32 GB SD card (in the Storage Expansion slot on an Acer Aspire One) with Grub2 installed in the same partition. I boot into legacy Grub on a USB drive and would like to boot by chainloading Grub2 from Grub (kernel/initrd or symlink booting would also be fine), but I haven't figured out how to do this from legacy Grub CLI. Output from blkid for this partition is /dev/mmcblk0p1: LABEL="Ubuntu" UUID="7ceb9fa7-238c-4c5d-bb8e-2c655652ddec" TYPE='ext4" / fdisk -lu information Boot indicator ID 83. Related entries in grub.cfg: search --no-floppy --fs-uuid --set-root 7ceb9fa7-238c-4c5d-bb8e-2c655652ddec linux /boot/vmlinuz-3.5.0-17-generic root=UUID=7ceb9fa7-238c-4c5d-bb8e-2c655652ddec... initrd /boot/initrd.img-3.5.0-17-generic I can't seem to replicate this in legacy Grub. Is there any way get Grub2 to chainload? How do I set root with UUID in legacy Grub? I prefer to boot from USB. Would Grub2 on USB (copying the grub.cfg generated during installation) be an option?

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• wifi usb dongle detected but no wlan interface

  - by piotrek

  I'm using ubuntu 12.04. When I insert my philips PTA01 usb wifi dongle, in dmesg i can see: [ 1181.535290] usb 2-3: new high-speed USB device number 4 using ehci_hcd [ 1181.684074] usb 2-3: New USB device found, idVendor=0471, idProduct=209e [ 1181.684086] usb 2-3: New USB device strings: Mfr=16, Product=32, SerialNumber=48 [ 1181.684093] usb 2-3: Product: PTA-01 [ 1181.684100] usb 2-3: Manufacturer: PHILIPS TV [ 1181.684105] usb 2-3: SerialNumber: 10 dmesg | grep ath: [ 367.861626] usbcore: registered new interface driver ath9k_htc but still there is no wlan interface when I do ifconfig. Just eth0 and lo. How can I turn wifi on? in case it's relevant. uname -a: Linux myhost 3.5.0-28-generic #48~precise1-Ubuntu SMP Wed Apr 24 21:42:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

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• How to mount an external Soundcard during startup?

  - by Moe

  I have an external sound card (Soundblaster XFi HD) connected to my Ubuntu 12.04 32-bit. that won't show up automatically after booting. After each boot process I need to plug the card out of the USB port and reconnect it, then it is found by the system and automatically used. I would like to either have it connected automatically during the boot process or at least have a little script or something which I can use after booting so that I don't have to manually plug the device off and on. Please note that I'm a total noob. If you don't mind please tell me the procedure step by step. Also, if I need to get some information via the terminal I'd need to be told the precise command to get it.

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• Talend Enterprise Data Integration overperforms on Oracle SPARC T4

  - by Amir Javanshir

  The SPARC T microprocessor, released in 2005 by Sun Microsystems, and now continued at Oracle, has a good track record in parallel execution and multi-threaded performance. However it was less suited for pure single-threaded workloads. The new SPARC T4 processor is now filling that gap by offering a 5x better single-thread performance over previous generations. Following our long-term relationship with Talend, a fast growing ISV positioned by Gartner in the “Visionaries” quadrant of the “Magic Quadrant for Data Integration Tools”, we decided to test some of their integration components with the T4 chip, more precisely on a T4-1 system, in order to verify first hand if this new processor stands up to its promises. Several tests were performed, mainly focused on: Single-thread performance of the new SPARC T4 processor compared to an older SPARC T2+ processor Overall throughput of the SPARC T4-1 server using multiple threads The tests consisted in reading large amounts of data --ten's of gigabytes--, processing and writing them back to a file or an Oracle 11gR2 database table. They are CPU, memory and IO bound tests. Given the main focus of this project --CPU performance--, bottlenecks were removed as much as possible on the memory and IO sub-systems. When possible, the data to process was put into the ZFS filesystem cache, for instance. Also, two external storage devices were directly attached to the servers under test, each one divided in two ZFS pools for read and write operations. Multi-thread: Testing throughput on the Oracle T4-1 The tests were performed with different number of simultaneous threads (1, 2, 4, 8, 12, 16, 32, 48 and 64) and using different storage devices: Flash, Fibre Channel storage, two stripped internal disks and one single internal disk. All storage devices used ZFS as filesystem and volume management. Each thread read a dedicated 1GB-large file containing 12.5M lines with the following structure: customerID;FirstName;LastName;StreetAddress;City;State;Zip;Cust_Status;Since_DT;Status_DT 1;Ronald;Reagan;South Highway;Santa Fe;Montana;98756;A;04-06-2006;09-08-2008 2;Theodore;Roosevelt;Timberlane Drive;Columbus;Louisiana;75677;A;10-05-2009;27-05-2008 3;Andrew;Madison;S Rustle St;Santa Fe;Arkansas;75677;A;29-04-2005;09-02-2008 4;Dwight;Adams;South Roosevelt Drive;Baton Rouge;Vermont;75677;A;15-02-2004;26-01-2007 […] The following graphs present the results of our tests: Unsurprisingly up to 16 threads, all files fit in the ZFS cache a.k.a L2ARC : once the cache is hot there is no performance difference depending on the underlying storage. From 16 threads upwards however, it is clear that IO becomes a bottleneck, having a good IO subsystem is thus key. Single-disk performance collapses whereas the Sun F5100 and ST6180 arrays allow the T4-1 to scale quite seamlessly. From 32 to 64 threads, the performance is almost constant with just a slow decline. For the database load tests, only the best IO configuration --using external storage devices-- were used, hosting the Oracle table spaces and redo log files. Using the Sun Storage F5100 array allows the T4-1 server to scale up to 48 parallel JVM processes before saturating the CPU. The final result is a staggering 646K lines per second insertion in an Oracle table using 48 parallel threads. Single-thread: Testing the single thread performance Seven different tests were performed on both servers. Given the fact that only one thread, thus one file was read, no IO bottleneck was involved, all data being served from the ZFS cache. Read File ? Filter ? Write File: Read file, filter data, write the filtered data in a new file. The filter is set on the “Status” column: only lines with status set to “A” are selected. This limits each output file to about 500 MB. Read File ? Load Database Table: Read file, insert into a single Oracle table. Average: Read file, compute the average of a numeric column, write the result in a new file. Division & Square Root: Read file, perform a division and square root on a numeric column, write the result data in a new file. Oracle DB Dump: Dump the content of an Oracle table (12.5M rows) into a CSV file. Transform: Read file, transform, write the result data in a new file. The transformations applied are: set the address column to upper case and add an extra column at the end, which is the concatenation of two columns. Sort: Read file, sort a numeric and alpha numeric column, write the result data in a new file. The following table and graph present the final results of the tests: Throughput unit is thousand lines per second processed (K lines/second). Improvement is the % of improvement between the T5140 and T4-1. Test T4-1 (Time s.) T5140 (Time s.) Improvement T4-1 (Throughput) T5140 (Throughput) Read/Filter/Write 125 806 645% 100 16 Read/Load Database 195 1111 570% 64 11 Average 96 557 580% 130 22 Division & Square Root 161 1054 655% 78 12 Oracle DB Dump 164 945 576% 76 13 Transform 159 1124 707% 79 11 Sort 251 1336 532% 50 9 The improvement of single-thread performance is quite dramatic: depending on the tests, the T4 is between 5.4 to 7 times faster than the T2+. It seems clear that the SPARC T4 processor has gone a long way filling the gap in single-thread performance, without sacrifying the multi-threaded capability as it still shows a very impressive scaling on heavy-duty multi-threaded jobs. Finally, as always at Oracle ISV Engineering, we are happy to help our ISV partners test their own applications on our platforms, so don't hesitate to contact us and let's see what the SPARC T4-based systems can do for your application! "As describe in this benchmark, Talend Enterprise Data Integration has overperformed on T4. I was generally happy to see that the T4 gave scaling opportunities for many scenarios like complex aggregations. Row by row insertion in Oracle DB is faster with more than 650,000 rows per seconds without using any bulk Oracle capabilities !" Cedric Carbone, Talend CTO.

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• Evolution - exchange-connector, Rackspace global catalog server

  - by user10669

  I'm (trying to) switch to Ubuntu from Windows XP on my work laptop. Unfortunately, one of the dealbreakers is that I need full Exchange contact/calendar syncing. Our email is hosted by Rackspace (owa.mailseat.com). We login using the usernames of the format [email protected]. I'm trying to set up Evolution to use this account, using exchange-connector-setup-2.32. The first step, entering the OWA URL, usename and password works, and progresses to step 2, where I need to enter a Global Catalog server. I have no idea what to enter here. Everything fails. My questions are - What is the "Global Catalog server" - can I enter/run some dummy server here? - If its necessary, where can I get the information from this? I have a Windows XP machine synced up using Outlook 2007, so if I need to gather any information from that setup I can.

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• What is the most efficient way to blur in a shader?

  - by concernedcitizen

  I'm currently working on screen space reflections. I have perfectly reflective mirror-like surfaces working, and I now need to use a blur to make the reflection on surfaces with a low specular gloss value look more diffuse. I'm having difficulty deciding how to apply the blur, though. My first idea was to just sample a lower mip level of the screen rendertarget. However, the rendertarget uses SurfaceFormat.HalfVector4 (for HDR effects), which means XNA won't allow linear filtering. Point filtering looks horrible and really doesn't give the visual cue that I want. I've thought about using some kind of Box/Gaussian blur, but this would not be ideal. I've already thrashed the texture cache in the raymarching phase before the blur even occurs (a worst case reflection could be 32 samples per pixel), and the blur kernel to make the reflections look sufficiently diffuse would be fairly large. Does anyone have any suggestions? I know it's doable, as Photon Workshop achieved the effect in Unity.

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• Firefox messages in /var/log/messages

  - by Roy

  I happened to be browsing through /var/log/messages for another reason, and I stumbled across some messages apparently related to Firefox like this: Apr 5 15:36:59 myserver kernel: [18091.188462] type=1503 audit(1333658219.144:19): operation="open" pid=6396 parent=1 profile="/usr/lib/firefox-11.0/firefox{,*[^s][^h]}" requested_mask="::r" denied_mask="::r" fsuid=1000 ouid=0 name="/shr/RiverTrip.gpx" which are really puzzling me because I really don't see why Firefox would know about these files let alone output messages about them. The /shr directory is an NTFS partition I set up on my laptop so I can access it with either Ubuntu or Windows XP. The messages are consistently showing up for a few of the files in that directory, but not all. I haven't even looked at those files or done anything else with them in a long time! I have no idea what's special with those files; they appear to be picked at random as far as I can tell. I am using Ubuntu Release 10.04 (lucid), Kernel Linux 2.6.32-38, GNOME 2.30.2, Firefox 11.0 . I hope someone can explain these spooky messages!

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