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Articles indexed Monday December 10 2012

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• Oracle Exalogic: Simple IT Operations, Great Application Experience

  - by Michelle Kimihira

  See a demo featuring Yoav Eilat, Director of Product Marketing. Yoav demonstrates how easy it is to deploy new applications and how administrators can manage the entire system from a single console on Exalogic. Click here to view. Additional Information Product Information on Oracle.com: Oracle Fusion Middleware, Oracle Exalogic Follow us on Twitter and Facebook Subscribe to our regular Fusion Middleware Newsletter

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• Mastering snow and Java development at jDays in Gothenburg

  - by JavaCecilia

  Last weekend, I took the train from Stockholm to Gothenburg to attend and present at the new Java developer conference jDays. It was professionally arranged in the Swedish exhibition hall close to the amusement park Liseberg and we got a great deal out of the top-level presenters and hallway discussions. Understanding and Improving Your Java Process Our main purpose was to spread information on JVM and our monitoring tools for Java processes, so I held a crash course in the most important terms and concepts if you want to affect the performance of your Java process. From the beginning - the JVM specification to interpretation of heap usage graphs. For correct analysis, you also need to understand something about process memory - you need space for the Java heap (-Xms for initial size and -Xmx for max heap size), but the process memory also contain the thread stacks (to a size of -Xss), JVM internal data structures used for keeping track of Java objects on the heap, method compilation/optimization, native libraries, etc. If you get long pause times, make sure to monitor your application, see the allocation rate and frequency of pause times.My colleague Klara Ward then held a presentation on the Java Mission Control product, the profiling and diagnostics tools suite for HotSpot, coming soon. The room was packed and very appreciated, Klara demonstrated four different scenarios, e.g. how to diagnose and fix latencies due to lock contention for logging.My German colleague, OpenJDK ambassador Dalibor Topic travelled to Sweden to do the second keynote on "Make the Future Java". He let us in on the coming features and roadmaps of Java, now delivering major versions on a two-year schedule (Java 7 2011, Java 8 2013, etc). Also letting us in on where to download early versions of 8, to report problems early on. Software Development in teams Being a scout leader, I'm drilled in different team building and workshop techniques, creating strong groups - of course, I had to attend Henrik Berglund's session on building successful teams. He spoke about the importance of clear goals, autonomy and agreed processes. Thomas Sundberg ended the conference by doing live remote pair programming with Alex in Rumania and a concrete tips for people wanting to try it out (for local collaboration, remember to wash and change clothes). Memory Master Keynote The conference keynote was delivered by the Swedish memory master Mattias Ribbing, showing off by remembering the order of a deck of cards he'd seen once. He made it interactive by forcing the audience to learn a memory mastering technique of remembering ten ordered things by heart, asking us to shout out the order backwards and we made it! I desperately need this - bought the book, will get back on the subject. Continuous Delivery The most impressive presenter was Axel Fontaine on Continuous Delivery. Very well prepared slides with key images of his message and moved about the stage like a rock star. The topic is of course highly interesting, how to create an infrastructure enabling immediate feedback to developers and ability to release your product several times per day. Tomek Kaczanowski delivered a funny and useful presentation on good and bad tests, providing comic relief with poorly written tests and the useful rules of thumb how to rewrite them. To conclude, we had a great time and hope to see you at jDays next year :)

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• eSTEP TechCast - December 2012 Material Available

  - by Cinzia Mascanzoni

  The materials (presentation, replay) from the TechCast on "Innovations with Oracle Solaris Cluster 4" are now available for all of you via our eSTEP portal.  You will need to provide your email address and the pin below to access the downloads. Link to the portal is shown below. URL: http://launch.oracle.com/ PIN: eSTEP_2011 The downloads can be found under tab Events --> TechCast. Feel free to explore also the other delivered TechCasts and more useful information under the Download and Links tab. Any feedback is appreciated to help us improve the service and information we deliver.

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• Fusion CRM ISV program is gaining weight: Examples of certified add-on's

  - by Richard Lefebvre

  The Fusion CRM ISV program is gaining traction. Please find below few examples of the partners having certified their add-on's to seamlessly work on top of Oracle Fusion CRM. For more information, please contact [email protected] ·         Opportunity-to-Quote.  Big Machines now integrates seamlessly to Oracle Fusion CRM, enabling customers with complex products and services and multiple sales channels to streamline the entire opportunity-to-quote process, including product selection, configuration, pricing, quoting, and approval workflows.  Create a custom hyperlink in the Opportunity to invoke Big Machines CPQ application to create a quote and sync up with the Fusion CRM custom quote object using the CRUD operations. The quote can be updated using the custom button in the custom tab in the opportunity details. See: http://www.bigmachines.com/oracle.php  ·         SaaS Billing and Subscription Management.  Is your prospect/customer asking whether top billing partners support Fusion CRM?  Positioning an integrated CRM solution for billing usage and subscription based services?  Need to implement a billable solution on the Oracle Java Cloud Service?  Aria Systems and Zuora have recently engaged with Oracle to deepen their integrations to Fusion CRM and team with Oracle for joint opportunities.  ·         Google Apps, SharePoint, Email-CRM Integrations o   Do your prospects use Google Apps in their business operations?  A “Best of AppExchange” award winner recently completed their integration for Fusion CRM.  CirrusInsight plugs Fusion CRM web services directly into Gmail, allowing you to search existing opportunity or contact, provide account information, and create an interaction such as phone call, appointment, or email against a customer or contact in Fusion CRM directly from Gmail.  o   An EMEA / France based partner, Aryvart provides bi-directional synchronization of appointments and tasks between Google calendar and Oracle Fusion CRM. For customers, it means adopting Oracle Fusion CRM while continuing to use Google calendar for appointments. o   Looking to lower the barrier and expand in SharePoint accounts?  InFact Group (EMEA / France & Germany) provides Microsoft SharePoint Connector for Oracle Fusion CRM. With this solution, you can store documents attached to an opportunity, into Microsoft SharePoint repository. For customers, it means adopting Oracle Fusion CRM while continuing to collaborate across existing content management infrastructure. o   Need to connect to MacMail, GroupWise, or Outlook/Exchange?  Omni Technology is a partner whose Riva CRM Integration recently engaged for support Fusion CRM as a key platform. Migration Tools from competitive CRMs, to Oracle Fusion CRM.  Data Migration Tools from legacy CRMs, to Oracle Fusion CRM.  A partner with the tools and techniques to speed adoption, Conemis provides data integration tools to export data from legacy CRM, and import into Oracle Fusion CRM via WebServices APIs. For customers, it means reducing cost of data migration from legacy CRM system into Oracle Fusion CRM. 

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• How to Integrate Backbone.js with RESTful Web Services in 5 Minutes!

  - by Geertjan

  In NetBeans IDE 7.3, a Backbone.js file can be generated from a Java RESTful web service. The Backbone.js file contains complete CRUD functionality and your HTML5 application can immediately be deployed to make use of those features. Coupled with the NetBeans IDE two-way editing support for HTML5, via interaction with WebKit in Chrome, Backbone.js users have a completely new and powerful tool for coding their HTML5 applications. The above is illustrated via the brand new YouTube movie below: This makes NetBeans IDE 7.3 well suited as a learning tool for new Backbone.js users, as well as a productivity tool for those who are comfortable with Backbone.js already.

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• Quantifying the Value Derived from Your PeopleSoft Implementation

  - by Mark Rosenberg

  As product strategists, we often receive the question, "What's the value of implementing your PeopleSoft software?" Prospective customers and existing customers alike are compelled to justify the cost of new tools, business process changes, and the business impact associated with adopting the new tools. In response to this question, we have been working with many of our customers and implementation partners during the past year to obtain metrics that demonstrate the value obtained from an investment in PeopleSoft applications. The great news is that as a result of our quest to identify value achieved, many of our customers began to monitor their businesses differently and more aggressively than in the past, and a number of them informed us that they have some great achievements to share. For this month, I'll start by pointing out that we have collaborated with one of our implementation partners, Huron Consulting Group, Inc., to articulate the levers for extracting value from implementing the PeopleSoft Grants solution. Typically, education and research institutions, healthcare organizations, and non-profit organizations are the types of enterprises that seek to facilitate and automate research administration business processes with the PeopleSoft Grants solution. If you are interested in understanding the ways in which you can look for value from an implementation, please consider registering for the webcast scheduled for Friday, December 14th at 1pm Central Time in which you'll get to see and hear from our team, Huron Consulting, and one of our leading customers. In the months ahead, we'll plan to post more information about the value customers have measured and reported to us from their implementations and upgrades. If you have a great story about return on investment and want to share it, please contact either [email protected]  or [email protected]. We'd love to hear from you.

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• Fixing Gatekeeper Row Cardinality Estimate Issues

  The Query Optimiser needs a good estimate of the number of rows likely to be returned by each physical operator in order to select the best query plan from the most likely alternatives. Sometimes these estimates can go so wildly wrong as to result in a very slow query. Joe Sack shows how it can happen with SQL Queries on a data warehouse with a star schema. Make working with SQL a breezeSQL Prompt 5.3 is the effortless way to write, edit, and explore SQL. It's packed with features such as code completion, script summaries, and SQL reformatting, that make working with SQL a breeze. Try it now.

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• "static" as a semantic clue about statelessness?

  - by leoger

  this might be a little philosophical but I hope someone can help me find a good way to think about this. I've recently undertaken a refactoring of a medium sized project in Java to go back and add unit tests. When I realized what a pain it was to mock singletons and statics, I finally "got" what I've been reading about them all this time. (I'm one of those people that needs to learn from experience. Oh well.) So, now that I'm using Spring to create the objects and wire them around, I'm getting rid of static keywords left and right. (If I could potentially want to mock it, it's not really static in the same sense that Math.abs() is, right?) The thing is, I had gotten into the habit of using static to denote that a method didn't rely on any object state. For example: //Before import com.thirdparty.ThirdPartyLibrary.Thingy; public class ThirdPartyLibraryWrapper { public static Thingy newThingy(InputType input) { new Thingy.Builder().withInput(input).alwaysFrobnicate().build(); } } //called as... ThirdPartyLibraryWrapper.newThingy(input); //After public class ThirdPartyFactory { public Thingy newThingy(InputType input) { new Thingy.Builder().withInput(input).alwaysFrobnicate().build(); } } //called as... thirdPartyFactoryInstance.newThingy(input); So, here's where it gets touchy-feely. I liked the old way because the capital letter told me that, just like Math.sin(x), ThirdPartyLibraryWrapper.newThingy(x) did the same thing the same way every time. There's no object state to change how the object does what I'm asking it to do. Here are some possible answers I'm considering. Nobody else feels this way so there's something wrong with me. Maybe I just haven't really internalized the OO way of doing things! Maybe I'm writing in Java but thinking in FORTRAN or somesuch. (Which would be impressive since I've never written FORTRAN.) Maybe I'm using staticness as a sort of proxy for immutability for the purposes of reasoning about code. That being said, what clues should I have in my code for someone coming along to maintain it to know what's stateful and what's not? Perhaps this should just come for free if I choose good object metaphors? e.g. thingyWrapper doesn't sound like it has state indepdent of the wrapped Thingy which may itself be mutable. Similarly, a thingyFactory sounds like it should be immutable but could have different strategies that are chosen among at creation. I hope I've been clear and thanks in advance for your advice!

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• How to learn programming for a medium scale project form a beginner? [closed]

  - by Lin Xiangyu

  I study programming by myself.I have learn servel programming languages. but I never write a project more than 1000 lines. I know the best way to improve programming skills is practise. The problem is many books, just talk about the programming language, or talk about build a project from a high level. Fews of books will teach how to build a middle scale project. For example, I want to build a simple HTTP Server(Nor like Apache or just a simple listenr to a port), a Markdown Parser, or a download tools just like emule or wget. I don't know what to do. I may found peaces of code in the web, or found familiar project in the Github. I don't know how to read the code. I want to some tutorial that can told me how to build the project step by step, teacher me how to write thousands lines of code. Any suggest?

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• How do I express subtle relationships in my data?

  - by Chuck H

  "A" is related to "B" and "C". How do I show that "B" and "C" might, by this context, be related as well? Example: Here are a few headlines about a recent Broadway play: 1 - David Mamet's Glengarry Glen Ross, Starring Al Pacino, Opens on Broadway 2 - Al Pacino in 'Glengarry Glen Ross': What did the critics think? 3 - Al Pacino earns lackluster reviews for Broadway turn 4 - Theater Review: Glengarry Glen Ross Is Selling Its Stars Hard 5 - Glengarry Glen Ross; Hey, Who Killed the Klieg Lights? Problem: Running a fuzzy-string match over these records will establish some relationships, but not others, even though a human reader could pick them out from context in much larger datasets. How do I find the relationship that suggests #3 is related to #4? Both of them can be easily connected to #1, but not to each other. Is there a (Googlable) name for this kind of data or structure? What kind of algorithm am I looking for? Goal: Given 1,000 headlines, a system that automatically suggests that these 5 items are all probably about the same thing. To be honest, it's been so long since I've programmed I'm at a loss how to properly articulate this problem. (I don't know what I don't know, if that makes sense). This is a personal project and I'm writing it in Python. Thanks in advance for any help, advice, and pointers!

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• Browser support for internal corporate tools

  - by adam

  We are on the verge of a conversion. For years, our company supported only IE for its internal (intranet) home-built tools. Since a few of our users are still on XP, which means IE only goes up to 8... a heavily JS / jQuery site wont even load! We have been in the process of converting to use Chrome instead, to make use of its javascript performance. But, it has now been suggested that we support all common browsers... internally for these tools. Which means more development time to scale-back some of these new applications, more time to test in all browsers, and we are already under staffed. Are there any good informational sites/posts out there, that already make this argument?

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• Why do operating systems do low level stuff in C and C++? Why not just C++?

  - by Cole Johnson

  On the Wikipedia page for Windows, it states the Windows is written in Assembly for the bootloader and task switcher, and C and C++ for kernel routines. This confuses me because AFAIK, you can call C++ functions from an extern "C"'d block as C++ is just C with extra features (all of which can be rewritten in C if you wanted to AFAIK). I can get using C for the kernel functions so pure C apps can use them (like printf and such), but if they can just be wrapped in an extern "C " block, then why code in C? So my question is: Why would a kernel be written in both C and C++ instead of just C++

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• Architecture guidelines for a "single page web-app"

  - by Matt Roberts

  I'm going to start a side project to build a "single page" web application. The application needs to be real-time, sending updates to the clients as changes happen. Are there any good resources for best-practice approaches wrt the architecture for these kinds of applications. The best resource I've found so far is the trello architecture article here: http://blog.fogcreek.com/the-trello-tech-stack/ To me, this architecture, although very sexy, is probably over-engineered for my specific needs - although I do have similar requirements. I'm wondering if I need to bother with a sub/pub at the server side, could I not just push updates from the server when something happens (e.g. when the client sends an update to the server, write the update to the db, and then send an update to the clients). Tech-wise, I'm probably looking to build this out in Node.JS or maybe Ruby, although the architecture guidelines should to some extent apply to any underlying server technologies.

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• Is there a language more general than Lisp?

  - by Jon Purdy

  I've been programming for a long time, and writing in Lisp (well, mostly Scheme) for a little less. My experience in these languages (and other functional languages) has informed my ability to write clean code even with less powerful tools. Lisp-family languages have lovely facilities for implementing every abstraction in common use: S-expressions generalise structure. Macros generalise syntax. Continuations generalise flow control. But I'm dissatisfied. Somehow, I want more. Is there a language that's more general? More powerful? As great as Lisp is, I find it hard to believe no one has come up with anything (dare I say) better. I'm well aware that ordinarily a question like this ought to be closed for its argumentative nature. But there seems to be a broad consensus that Lisp represents the theoretical pinnacle of programming language design. I simply refuse to accept that without some kind of proof. Which I guess amounts to questioning whether the lambda calculus is in fact the ideal abstraction of computation.

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• Need to modify gnome 3 theme for browser

  - by Mario De Schaepmeester

  I have recently begun using the DarkGreen theme for Gnome 3, however there are some problems on some webpages in FireFox regarding text input fields. This happens in the search field on Google, some fields on Facebook, etc... This theme uses a dark background and light color text for input fields by defaut. I have managed to modify the foreground color of input text succesfully for those fields that were never affected (from near white to gray), but it doesn't help for the "broken" fields. I also want to change the background color for all input fields to white, but I get no luck with that either. In the theme folder there is a gtk folder with a css file. Here are the relevant contents: @define-color theme_base_color #202020; @define-color theme_text_color #25DC00; /* #ffffff */ @define-color theme_bg_color #121212; @define-color theme_fg_color @theme_text_color; @define-color selected_bg_color #3E8753; @define-color selected_fg_color #ffffff; @define-color theme_selected_bg_color @selected_bg_color; @define-color menu_bg_color #555555; @define-color menu_fg_color @theme_text_color; @define-color menu_combobox_border @theme_selected_bg_color; @define-color menu_separator mix (@theme_bg_color, @menu_bg_color, 0.90); @define-color insensitive_bg_color alpha(#0b0b0d, 0.0); @define-color insensitive_fg_color alpha(#717171, 0.50); @define-color insensitive_border_color alpha(#717171, 0.50); @define-color entry_text_color /* #fafafa */ #707070; @define-color entry_background_a #ffffff; @define-color entry_background_b #ffffff; @define-color entry_background_c #ffffff; @define-color entry_background_d #ffffff; /* 121212 */ @define-color frame_color #707070; Is this CSS file the only thing I would need to change?

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• Adding program booting options to the OS

  - by user113948

  I am building a flight simulator box, off of Ubuntu 12.10, but I am trying to make the OS essentially invisible, I just want the machine to boot into the Flight Sim, which, that part isn't really that difficult, just a matter of adding a startup item, but I would like to make it a bit more seemless, and in-addtion to that, I would like maybe a 3-5 second countdown where you could opt-out of the flight sim from starting, if you need to troubleshoot the OS, or the flight sim itself, and I have no idea how that would be accomplished

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• public_html permissions for local development

  - by maGz

  I know this question has popped up a couple times, but I can't seem to find a definitive answer to my issue, so please bear with me. I have Ubuntu Server 12.04 setup in VirtualBox for PHP development and testing (Drupal plus other PHP sites using Yii framework). My question is in 3 parts... 1) If I create a public_html folder under /home/myuser, do I need to give ownership of that folder to the Apache www-data group? If so, are there any specific permissions I should be setting? 755? (Btw, I am following this guide to create the public_html directory and set up multiple virtual hosts per site I create and test) I previously had all of my sites under /var/www, but ran into massive permission denied errors whenever I tried to sFTP to it, either through FileZilla or PhpStorm. This is what I had previously done: sudo chgrp www-data /var/www sudo chmod -R 775 /var/www sudo chmod -R g+s /var/www sudo usermod -G www-data [my_ftp_user] 2) The second part of my question is this: If I create my PHP project and files in Windows through PhpStorm, and then upload via sFTP, will permissions get affected? 3) Once I am satisfied with my developed project, would it be advisable to move and test them under /var/www to see how it would fair in a production-ish environment? I would really appreciate the help and advice here. I'm learning more as I go along, but dealing with Linux files and permissions is a bit of a new ballgame for me! Thank you

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• How to help FGLRX detect a device

  - by user113416

  I have HD 4850 card, Ubuntu 12.10 and installed legacy drivers using makson96 ppa. The issue is, that FGLRX can not detect my device and loads vesa bios. I had the same problem on ubuntu 11.10, 12.04 versions. I want to manually help fglrx find a matching device to load as it shoudld do. It is interesting, why does fglrx search for a device in a PCI:0@1:0:1 Bus? in xorg.cof different bus is indicated: Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection fglrxinfo display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: ATI Radeon HD 4800 Series OpenGL version string: 3.3.11653 Compatibility Profile Context Here is a part of my xorg log: [ 3.846] (II) VESA: driver for VESA chipsets: vesa [ 3.846] (II) FBDEV: driver for framebuffer: fbdev [ 3.846] (++) using VT number 7 [ 3.846] (WW) Falling back to old probe method for fglrx [ 3.883] (II) Loading PCS database from /etc/ati/amdpcsdb [ 3.883] (--) Assigning device section with no busID to primary device [ 3.883] (--) Chipset Supported AMD Graphics Processor (0x9442) found [ 3.884] (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found [ 3.884] (II) AMD Video driver is running on a device belonging to a group targeted for this release [ 3.884] (II) AMD Video driver is signed [ 3.884] (II) fglrx(0): pEnt->device->identifier=0xb7791d8f [ 3.884] (WW) Falling back to old probe method for vesa [ 3.884] (WW) Falling back to old probe method for fbdev Thanks in advance.

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• iptables firewall to protect against automated entries

  - by Kenyana

  I am getting unusually large calls on my app. I have implemented CSRF Check over ajax and its working but am still getting so many calls. My guess is that someone has a script that is 'logged' in and making all these calls. Could someone please share a good iptables script for blocking ip's that run 10 calls to /controler/action in a second. I am using `/sbin/iptables -A INPUT -p tcp --syn --dport $port -m connlimit --connlimit-above N -j REJECT --reject-with tcp-reset save the changes see iptables-save man page, the following is redhat and friends specific command service iptables save` That is from cyberciti

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• VMWare Unity Mode with Ubunty 12.10

  - by Nick

  This is a very difficult thing to search for, and find an answer to because of the unfortunate choice VMWare and Ubuntu both having something called "Unity". My host operating system is Windows 7 - 64 bit, running VMWare Workstation 9.0.1. I have a virtual machine running Ubuntu 12.10 - 64 bit. When I attempt to put VMWare in "Unity mode", I get the following message: The virtual machine cannot enter Unity mode because: - Unity is not supported on the guest operating system. From the VMWare site, there is nothing listed that says that Ubuntu is not supported for this... and I have installed the latest vmware-tools on the guest operating system. It seems like a lot of people have had this issue, but I haven't seen a good resolution to it yet. Does anyone know how to get Unity mode working with Ubuntu?

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• Function inside .profile results in no log-in

  - by bioShark

  I've created a custom function in my .profile, and I've added right at the bottom, after my custom aliases : # custom functions function eclipse-gtk { cd ~/development/eclipse-juno ./eclipse_wb.sh & cd - } The function starts a custom version of my eclipse. After I've added it, because I didn't wanted to log-out/log-in, I've reloaded my profile with the command: . ~/.profile and then I've tested my function by calling eclipse-gtk and it worked without any issue. Today when I booted, I couldn't log in. After providing my password, in a few seconds I was back at the log-in screen. Dropping to command line using CTR + ALT + F1, I've commented out the function in my .profile and the log-in was possible without any issue. My question is, what did I do wrong when I wrote the function? And if there is something wrong, why did it work yesterday after reloading the profile. Thanks in advance. Using: Ubuntu 12.04

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• Wireless BMC4311 driver install

  - by user113910

  Exasperated with Ubuntu 12.04 and BCM4311 driver. HP2133 (was SUSE 10) Installed 12.04 in March. It ran well until November with no updates) then updates killed my wireless controller. Trolled forums & other for fix. Tried sudo -apt-get ing & gedit ing. Finally got it working (on full update with STA driver) Hwew!—thought that was it, only to fail again after 3-4 days. Tried all the fixes again but sudo -apt-get ing & gedit ing does not fix. I'm not without experience either: first 'boot-loader' I/P from 20 switch panel, seq to 4096 bit core-store: run to I/P larger processes from paper tape reader. Gone thru acoustic-coupled networks-to-billboards (before 'the net') pre-DOS, DOS, Windows 3.1 & all the others. This is a tough problem. Any advice?

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• Daemon for moving files between partitions?

  - by RATHI

  I have a system with Ubuntu installed in 20GB and windows in 100 GB, two partitions - each of 100GB using NTFS. While using DC++ (multiple downloading of big file) I used to get message that system is running out of memory. Is there any way to make a deamon which will be checking the Ubuntu partition so that if its used space goes up to a certain amount (let's say 18 GB) it will automatically start a moving file from this drive to another drive (let's assume it will pick the file from movie folder or largest media file from this drive to move)? Or it prompt to ask from user which file to move? Is there any program which can do this for me? If not, can you suggest something to read so that I could make it?

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• Cannot change screen brightness

  - by sixpounder0302

  I can't change the screen brightness on my laptop (Asus G53JW) with 12.10 installed. I have tried many ways to solve the problem, but nothing worked. I tried to edit grub with acpi_vendor and acpi_osi (I have tried all the combinations found on the ubuntu.org forum but still I can't change it. I even tried to add in xorg.conf the string: Option “RegistryDwords” “EnableBrightnessControl=1? Nothing changed. The only way to get it to work is to use nvidiabl but I have flickering problems with it and I'd like to find a way to solve the problem without external modules like nvidiabl.

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• Failed 11.10 to 12.04 upgrade and drove me crazy!

  - by Ivan

  Please help me with this! I first tried to upgrade my Ubuntu server from 11.10 to 12.04 thru Upgrade Manager, but never succeeded! Then I tried upgrading thru terminal, which took me ~4 hours as I was warned. When I restarted my computer, my login GUI did not show up at all! (Panic I was!) But when I switched to tty6 and it seemed the upgrade has finished, at least partially and got message Ubuntu 12.04LTS and telling me 12.10 is available. There are bunch of unmet dependencies...."apt-get install -f" may resolve the problem. Then I tried: sudo apt-get -f install, did not succeed! Also I tried sudo apt-get update && sudo apt-get upgrade I got bunch of error message too long to list here. Then I tried: sudo do-release-upgrade still bunch of error message there! There seems a lot trouble with the upgrade from 11.10 to 12.04 for me. Did I miss anything? Anyway, can I ask how I can get the gnome login GUI back? Thanks a lot! Yifang

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