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• git in non-distributed, independent, lone programming ...best practice(s) ?

  - by explorest

  I am currently studying the git documentation to get a hang of distributed version control workflow and use of git command line. I want to first start using git with small, personal, pet projects so to gain experience before doing it on large scale (i.e., bigger projects, team dev). What areas of the git system should I, as a lone player, devote most of my study time to... what parts should I leave for the larger scale work later on. In other words what features of the git system will fully be grasped in team work only, and therefore should not be too involved with at an individual level?

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• Internal and external API architecture

  - by Tacomanator

  The company I work for maintains a successful SaaS product that grew "organically" over the years. We are planning to expand the line with a suite of new products that will share data with the existing product. To support this, we are looking to consolidate business logic into a single place: a web service layer. The WS layer will be used by: The web applications A tool to import data A tool to integrate with other client software (not an API per se) We also want to create an API that can be used by our customers that are capable of using it to create their own integrations. We are struggling with the following question: Should the internal API (aka the WS layer) and the external API be one in the same, with security and permission settings to control what can be done by who, or should they be two separate applications where the external API just calls the internal API like any other application? So far in our debate it seems that separating them may be more secure, but will add overhead. What have others done in a similar situation?

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• GNU Octave - question about graphs and plotting

  - by Twórca

  I've had task to do - to make an graphical interpretation of adding two functions together: sin(8x) and multiplied -sign(x) in Octave, as shown on image above. And I've done that, but I don't know how to get rid of these lines, which link up gaps between separated values (for example, -1 and 1). I don't want them to be seen especially in third graph. To make helping me easier, I'm going to tell you what I did: I made linear series of numbers, from -100 to 99 (tempx). tempy = -sign(tempx) y1 = [tempy tempy tempy tempy] (this line is kinda funny, if you know Polish language) Creating y2 - sinus function y3 = y2 + y1 Plotting, subplotting... Screenshot Awaiting for instructions...

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• Code refactoring with Visual Studio 2010 Part-4

  - by Jalpesh P. Vadgama

  I have been writing few post with code refactoring features in Visual Studio 2010. This post also will be part of series and this post will be last of the series. In this post I am going explain two features 1) Encapsulate Field and 2) Extract Interface. Let’s explore both features in details. Encapsulate Field: This is a nice code refactoring feature provides by Visual Studio 2010. With help of this feature we can create properties from the existing private field of the class. Let’s take a simple example of Customer Class. In that I there are two private field called firstName and lastName. Below is the code for the class. public class Customer { private string firstName; private string lastName; public string Address { get; set; } public string City { get; set; } } Now lets encapsulate first field firstName with Encapsulate feature. So first select that field and goto refactor menu in Visual Studio 2010 and click on Encapsulate Field. Once you click that a dialog box will appear like following. Now once you click OK a preview dialog box will open as we have selected preview reference changes. I think its a good options to check that option to preview code that is being changed by IDE itself. Dialog will look like following. Once you click apply it create a new property called FirstName. Same way I have done for the lastName and now my customer class code look like following. public class Customer { private string firstName; public string FirstName { get { return firstName; } set { firstName = value; } } private string lastName; public string LastName { get { return lastName; } set { lastName = value; } } public string Address { get; set; } public string City { get; set; } } So you can see that its very easy to create properties with existing fields and you don’t have to change anything there in code it will change all the stuff itself. Extract Interface: When you are writing software prototype and You don’t know the future implementation of that then its a good practice to use interface there. I am going to explain here that How we can extract interface from the existing code without writing a single line of code with the help of code refactoring feature of Visual Studio 2010. For that I have create a Simple Repository class called CustomerRepository with three methods like following. public class CustomerRespository { public void Add() { // Some code to add customer } public void Update() { //some code to update customer } public void Delete() { //some code delete customer } } In above class there are three method Add,Update and Delete where we are going to implement some code for each one. Now I want to create a interface which I can use for my other entities in project. So let’s create a interface from the above class with the help of Visual Studio 2010. So first select class and goto refactor menu and click Extract Interface. It will open up dialog box like following. Here I have selected all the method for interface and Once I click OK then it will create a new file called ICustomerRespository where it has created a interface. Just like following. Here is a code for that interface. using System; namespace CodeRefractoring { interface ICustomerRespository { void Add(); void Delete(); void Update(); } } Now let's see the code for the our class. It will also changed like following to implement the interface. public class CustomerRespository : ICustomerRespository { public void Add() { // Some code to add customer } public void Update() { //some code to update customer } public void Delete() { //some code delete customer } } Isn't that great we have created a interface and implemented it without writing a single line of code. Hope you liked it. Stay tuned for more.. Till that Happy Programming.

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• iptables mac address filtering not work

  - by Tony Lee

  I block every port default by ufw and add iptables rules like this: sudo iptables -A INPUT -p tcp --dport 1723 -m mac --mac-source 00:11:22:33:44:55 -j ACCEPT then I list iptables INPUT rules: sudo iptables -L INPUT --line-numbers Chain INPUT (policy DROP) num target prot opt source destination 1 ACCEPT udp -- anywhere anywhere udp dpt:domain 2 ACCEPT tcp -- anywhere anywhere tcp dpt:domain 3 ACCEPT udp -- anywhere anywhere udp dpt:bootps 4 ACCEPT tcp -- anywhere anywhere tcp dpt:bootps 5 ufw-before-logging-input all -- anywhere anywhere 6 ufw-before-input all -- anywhere anywhere 7 ufw-after-input all -- anywhere anywhere 8 ufw-after-logging-input all -- anywhere anywhere 9 ufw-reject-input all -- anywhere anywhere 10 ufw-track-input all -- anywhere anywhere 11 ACCEPT tcp -- anywhere anywhere tcp dpt:1723 MAC 00:11:22:33:44:55 but I can't visit my server:1723 Is there sth wrong? I use Ubuntu 11.10

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• Less is More Redux

  In my short happy life as a developer, Ive run into all kinds of development efforts that include frameworks, libraries, web sites, and much more.The one thing that stands out as an irritant to me is complexity. Specifically, unnecessary complexity. Ive seen developers author entire library assemblies that provide wrapper utility methods consisting of calls to .NET BCL methods that take one line of code methods that could have been called inline without even the need for the helper classes.Ive seen...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Calling all developers building ASP.NET applications

  - by Laila Lotfi

  We know that developers building desktop apps have to contend with memory management issues, and we’d like to learn more about the memory challenges ASP.NET developers are facing. To be more specific, we’re carrying out some exploratory research leading into the next phase of development on ANTS Memory Profiler, and our development team would love to speak to developers building ASP.NET applications. You don’t need to have ever used ANTS profiler – this will be a more general conversation about: - your current site architecture, and how you manage the memory requirements of your applications on your back-end servers and web services. - how you currently diagnose memory leaks and where you do this (production server, or during testing phase, or if you normally manage to get them all during the local development). - what specific memory problems you’ve experienced – if any. Of course, we’ll compensate you for your time with a $50 Amazon voucher (or equivalent in other currencies), and our development team’s undying gratitude. If you’d like to participate, please just drop me a line on [email protected].

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• Hack Your Kindle for Easy Font Customization

  - by Jason Fitzpatrick

  The font options included with the Kindle are certainly serviceable, but why limit yourself? Today we’ll show you how to easily swap out the font files on your Kindle for a completely customized reading experience. Why customize the font? Why not! It’s your ebook reader and if you want the font to be crisper, thicker, look like it belongs on Star Trek, or pack more words per line, there’s no need to let Amazon’s design decisions stand in your way. Today we’re going to show you how you can install new fonts on your Amazon Kindle with free tools and about 20 minutes of tinkering (most of which will be spent waiting for the Kindle to reboot and rebuild the fonts). Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It

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• What's New in OIC Analytics 11g?

  - by LuciaC

  Oracle Incentive Compensation (OIC) Analytics for Oracle Data Integrator (ODI) breaks down traditional front and back office silos bringing together sales performance data with those responsible for the sale and selling costs. It is a framework for Sales Performance Management  based on a data mart of key performance metrics regardless of whether or not these metrics are incentivized.Commissionable metrics are brought into OIC for commission calculation and brought back to enrich the performance data mart.  Executives and Product Marketing/Product Line Managers are provided with actionable sales performance analytics.  Incentivized salesreps and partners are provided with commission dashboards on a frequent basis to inform them how they are doing and how far they are from their goals.OIC Analytics is now certified with 11g and has additional features.  Oracle continues to invest in OIC Analytics but the baseline for the investments will be the 11gR1 certification version of OIC Analytics.  Read about what's new and the certification details in Doc ID 1590729.1.

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• Drawing large 2D sidescroller level terrain

  - by Yar

  I'm a relatively good programmer but now that it comes to add some basic levels to my 2D game I'm kinda stuck. What I want to do: An acceptable, large (8000 * 1000 pixels) "green hills" test level for my game. What is the best way for me to do this? It doesn't have to look great, it just shouldn't look like it was made in MS paint with the line and paint bucket tool. Basically it should just mud with grass on top of it, shaped in some form of hills. But how should I draw it, I can't just take out the pencil tool and start drawing it pixel per pixel, can I?

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• Isolated Storage Made Easy

  In its most simple form Isolated Storage allows you to save name value pairs and retrieve them at some other time the next time your app runs. Granted we could get into XML and text files etc but I'm going to stick with just name value pairs. Lets take a look at this line:private void PresistKeyValue(string _Key, string _Value){StreamWriter MyWriter = new StreamWriter(new IsolatedStorageFileStream(_Key, FileMode.Create, IsolatedStorageFile.GetUserStoreForApplication()));MyWriter.Write(_Value);MyWriter.Close();}Nice...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• audio controls in xfce 4.8

  - by Peter

  I am seeing several questions similar to mine, but none of the answers are sufficient. I am pretty green with Ubuntu, so here goes: I was just automatically upgraded to xfce 4.8 for Ubuntu studio. The volume control no longer works in my panel. When I launch 'mixer' I don't see any settings, either. When I try to run "linux audio configuration" I get an error: JACK can only be configured with a loaded and stopped studio. Please create a new studio or load and stop an existing one. I understand that I can change the volume using command line, but I can't understand why I got upgraded to something that fails on basic features. I much less likely to recommend ubuntu to others as a result. thanks!

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• Uninstalling application built from source

  - by Nik

  I know that Ubuntu has come a long way in helping new users to get used to their linux system..and making things as easy as possible. One most important aspect is installing and uninstalling applications in ubuntu. Thanks to Ubuntu Software Center it is a breeze! However I noticed that when I compiled and installed a game from its source (battleship), it does not appear under the history tab in the Ubuntu Software Center. And also you cannot uninstall it through the software center but have to resort to the command line to do this. I do not mind doing it however I am sure some other users might not be comfortable with this. Is this a bug?

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• How to convince my boss to improve code quality?

  - by Vimvq1987

  The place I'm working for is a service provider. We have a lot of services, which are written to deal with deadline, so their code are really terrible: No coding convention, everyone codes in his own style No unit testing (which is really bad) No refactoring (which is truly worse) No automation build/deployment etc and these code are used again and again, so bad code continue to spread all over my department. I really want to set up a standard quality for our code, by requiring everyone to follow "rules": every line of code which does not follow convention will be rejected, and every function of code which does not pass unit testing will not be committed,...But I don't know how to convince my boss to allow me to do this. I'm relatively new comer, so inspiring people from my works is really hard, and I think it's easier if my boss support me to this. Thank you very much for your advices

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• FormatDate in Display Item Form Webpart

  - by H(at)Ni

  I've faced an issue that I wanted to display the date in the format of ('MMMM dd') that is retrieved from a sharepoint list in an arabic site collection. So, after googling this issue, I've found out that a possible solution to my poblem is using the function ddwrt:FormatDateTime that can be used as long as you'll include the following namespace xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" My purpose was solved by writing this line of code in my xsl code behind for the webpart : ddwrt:FormatDateTime(string(@StartDate),3073,'MMMM dd') but that worked only if the webpart is inserted into an English site . After trying to search but in vain, I started to use my guesses that ended up doing something like that: ddwrt:FormatDateTime(ddwrt:FormatDateTime(string(@StartDate),3073,'dd/MM/yyyy'), 3073, 'MMMM dd') And the cause of the problem was that sharepoint parses the date as 'MM/dd/yyyy' which I think could be related to server regional settings, so I had to force it to parse the date in arabic-Egypt format as 'dd/MM/yyyy' in order to get the correct 'Month Day' format as expected.

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• EM CLI, diving in and beyond!

  - by Maureen Byrne

  v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Doing more in less time… Isn’t that what we all strive to do? With this in mind, I put together two screen watches on Oracle Enterprise Manager 12c command line interface, or EM CLI as it is also known. There is a wealth of information on any topic that you choose to read about, from manual pages to coding documents…might I even say blog posts? In our busy lives it is so nice to just sit back with a short video, watch and learn enough to dive in. Doing more in less time, is the essence of EM CLI. It enables you to script fundamental and complex administrative tasks in an elegant way, thanks to the Jython scripting language. Repetitive tasks can be scripted and reused again and again. Sure, a Graphical User Interface provides a more intuitive step by step approach to tasks, and it provides a way of quickly becoming familiar with a product and its many features, and it is definitely the way to go when viewing performance data and historical trending…but for repetitive and complex tasks, scripting is the way to go! Lets us take the everyday task of creating an administrator. Using EM CLI in interactive mode the command could look like this.. emcli>create_user(name='jan.doe', type='EXTERNAL_USER') This command creates an administrator called jan.doe which is an externally authenticated user, possibly LDAP or SSO, defined by the EXTERNAL_USER tag. The create_user procedure takes many arguments; see the documentation for more information. Now, where EM CLI really shines and shows power is in creating multiple users. Regardless of the number, tens or thousands, the effort is the same. With the use of a standard programming construct, a loop, you can place your create_user() procedure within it. Using a loop allows you to iterate through a previously created list, creating new users until the list is complete. Using EM CLI in Script mode, your Jython loop would look something like this… for user in list_of_users:       create_user(name=user, expire=’true’, password=’welcome123’) This Jython code snippet iterates through a previously defined list of names, list_of_users, and iterates through the list, taking each name, user in this case, and creates an administrator sets the password to welcome123, but forces the user to reset it when they first login. This is only one of over four hundred procedures created to expose Oracle Enterprise Manager 12c functionality in a powerful and programmatic way. It is a few months since we released EM CLI with scripting option. We are seeing many users adapt to this fun and powerful way of using Oracle Enterprise Manager 12c. What are the first steps? Watch these screen watches, and dive in. The first screen watch steps you through where and how to download and install and how to run your first few commands. The Second screen watch steps you through a few scripts. Next time, I am going to show you the basic building blocks to writing a Jython script to perform Oracle Enterprise Manager 12c administrative tasks. Join this growing group of EM CLI users…. Dive in! Normal 0 false false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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• Entries in the resolv.conf

  - by Carsten

  I am using 12.04 and have a problem with my resolv.conf There are 2 search lines there. But I can only explain one. I would like to get the other one removed. carsten@myubuntubox:~$ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 127.0.0.1 search aaaa.bbb.example.net search something nameserver 1.2.3.4 nameserver 1.2.3.5 I can't explain the search aaaa.bbb.example.net Where does it come from? The last 3 lines (like I want come from /etc/resolvconf/resolv.conf.d/tail This is good. But where is the other search line coming from? In /etc/dhcp/dhclient I removed the requests for domain-name-servers, domain-search, but the lines are still in there. Should I remove the dhcp6.domain-search as well?

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• Installing Cairo to get FastRWeb working for R gWidgetsWWW2 -pkg

  - by hhh

  I want to install FastRWeb for R but it requires some Cairo. How can I install the Cairo? compilation terminated. make: *** [xlib-backend.o] Error 1 ERROR: compilation failed for package ‘Cairo’ * removing ‘/home/xfz/R/i686-pc-linux-gnu-library/2.13/Cairo’ ERROR: dependency ‘Cairo’ is not available for package ‘FastRWeb’ * removing ‘/home/xfz/R/i686-pc-linux-gnu-library/2.13/FastRWeb’ The downloaded packages are in ‘/tmp/Rtmpno8hhF/downloaded_packages’ Warning messages: 1: In install.packages("FastRWeb", , "http://rforge.net/", type = "source") : installation of package 'Cairo' had non-zero exit status 2: In install.packages("FastRWeb", , "http://rforge.net/", type = "source") : installation of package 'FastRWeb' had non-zero exit status I cannot find what the Cairo is here, 16 entries with this search term below. It is apparently some library. $ apt-cache search libcairo|wc 16 132 996 Perhaps related http://stackoverflow.com/questions/9826128/r-making-r-rook-program-into-rscript-program-r http://stackoverflow.com/questions/9812547/r-gui-vizualiser-with-command-line-access-browser-based-letting-users-to-s Some related packages FastRWeb and RServe for the gWidgetsWWW2 -pkg.

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• Mount to /dev/sdb1 without password

  - by Jarmo

  I am unable to mount a USB drive (or SD card) to my system without root access. When I plug in a USB drive, it is visible in the left column of Nautilus, but when I click on it to open it, I receive the error message Unable to mount 2.1 GB Filesystem Error mounting: mount exited with exit code 1: helper failed with: mount: only root can mount /dev/sdb1 on /media/sdb1 I am able to mount the drive using sudo mount -w /dev/sdb1, but this causes problems for operations such as creating startup discs, which requires unmounting and remounting the drive. I suspect this problem may be caused by the fact that when I upgraded from 11.10 to 12.04, I had an SD card plugged in. This caused the system to stall during later startups, as it could not find this drive. I remedied this by editing a line of /etc/fstab to read /dev/sdb1 /media/sdb1 vfat noauto 0 0 However, I am dual booting Ubuntu with Windows XP, and I have no problem mounting the C: drive of the Windows system without root access, so I feel that this is a problem related to the mount point rather than mounting in general.

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• How do I cap rendering of tiles in a 2D game with SDL?

  - by farmdve

  I have some boilerplate code working, I basically have a tile based map composed of just 3 colors, and some walls and render with SDL. The tiles are in a bmp file, but each tile inside it corresponds to an internal number of the type of tile(color, or wall). I have pretty basic collision detection and it works, I can also detetc continuous presses, which allows me to move pretty much anywhere I want. I also have a moving camera, which follows the object. The problem is that, the tile based map is bigger than the resolution, thus not all of the map can be displayed on the screen, but it's still rendered. I would like to cap it, but since this is new to me, I pretty much have no idea. Although I cannot post all the code, as even though I am a newbie and the code pretty basic, it's already quite a few lines, I can post what I tried to do void set_camera() { //Center the camera over the dot camera.x = ( player.box.x + DOT_WIDTH / 2 ) - SCREEN_WIDTH / 2; camera.y = ( player.box.y + DOT_HEIGHT / 2 ) - SCREEN_HEIGHT / 2; //Keep the camera in bounds. if(camera.x < 0 ) { camera.x = 0; } if(camera.y < 0 ) { camera.y = 0; } if(camera.x > LEVEL_WIDTH - camera.w ) { camera.x = LEVEL_WIDTH - camera.w; } if(camera.y > LEVEL_HEIGHT - camera.h ) { camera.y = LEVEL_HEIGHT - camera.h; } } set_camera() is the function which calculates the camera position based on the player's positions. I won't pretend I know much about it. Rectangle box = {0,0,0,0}; for(int t = 0; t < TOTAL_TILES; t++) { if(box.x < (camera.x - TILE_WIDTH) || box.y > (camera.y - TILE_HEIGHT)) apply_surface(box.x - camera.x, box.y - camera.y, surface, screen, &clips[tiles[t]]); box.x += TILE_WIDTH; //If we've gone too far if(box.x >= LEVEL_WIDTH) { //Move back box.x = 0; //Move to the next row box.y += TILE_HEIGHT; } } This is basically my render code. The for loop loops over 192 tiles stored in an int array, each with their own unique value describing the tile type(wall or one of three possible colored tiles). box is an SDL_Rect containing the current position of the tile, which is calculated on render. TILE_HEIGHT and TILE_WIDTH are of value 80. So the cap is determined by if(box.x < (camera.x - TILE_WIDTH) || box.y > (camera.y - TILE_HEIGHT)) However, this is just me playing with the values and see what doesn't break it. I pretty much have no idea how to calculate it. My screen resolution is 1024/768, and the tile map is of size 1280/960.

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• What is the root of my application?

  - by railguage48

  Can someone help me understand what is the root of my application? I would like to use vim and create a one line procfile in the root of my application. Then I can test the procfile using a gem called foreman with the following command in my terminal: foreman start I have tried sudo vim /procfile and created the file and saved it in what I thought to be the root. Then I typed: foreman start and the response is that Procfile does not exist. Any help would be most appreciated.

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• How to Quickly Resize, Convert & Modify Images from the Linux Terminal

  - by Chris Hoffman

  ImageMagick is a suite of command-line utilities for modifying and working with images. ImageMagick can quickly perform operations on an image from a terminal, perform batch processing of many images, or be integrated into a bash script. ImageMagick can perform a wide variety of operations. This guide will introduce you to ImageMagick’s syntax and basic operations and show you how to combine operations and perform batch processing of many images. The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos

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• Guide to particulars in customizing Ubuntu Installer

  - by Oxwivi

  I've tried reading through guides for preseeding and customization, but I did not understand how and where to modify which options. I can only comfortably learn through practical examples, for which I ask this question. I am looking into preseeding and customizing solution to just do a few specific tasks: Completely rewrite the packages installed by default, much like minimal installs and with the --no-install-recommends flag of apt-get. Add a few proprietary applications to the default install list Automatically install and mount proprietary drivers on install and live session Edit the default configuration files for applications installed by default Specify partitions along with permission Modify the package pool in the installer media (CD/DVD/USB), preferably using command line tools similar to apt-get and aptitude. Can anyone please tell me how to configure preseed option to only do the above? NB I do not understand the GPG part after adding/removing packages in the pool. PS The third point is of particular importance.

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• Make the JavaScript Test Pass

  Add code on the commented line: var f = function () { var value = // ??? return f.sum = (f.sum || 0) + value;} ... to make the following QUnit test pass: test("Running sum", function () { equals(f(3), 3); equals(f(3), 6); equals(f(4), 10); jQuery([1, 2, 3]).each(f); equals(f(0), 16); }); Possible Answer It's a goofy scenario, but one possible solution uses a technique you'll see frequently inside today's JavaScript libraries. First, we'll need to use the implicit arguments parameter inside...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How can I upgrade to Lubuntu 14.04.1 withot a PAE kernel?

  - by Richard

  On my Dell Latitude D800 laptop, which has an old Pentium M without PAE support, I was able to successfully install Lubuntu 14.04 from the CD. When I try to upgrade, I get the error: PAE not enabled Your system uses a CPU that does not have PAE enabled. Ubuntu only supports non-PAE systems up to Ubuntu 12.04. To upgrade to a later version of Ubuntu, you must enable PAE (if this is possible) see: http://help.ubuntu.com/community/EnablingPAE I have seen the Communit Wiki page for PAE. The suggestion is to add forcepae to the command line options. When I do this, I get the same message. Moreover, dmesg does not indicate PAE was ever enabled. Is there anything else I can ry to get Lubuntu to upgrade correctly?

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