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  • 12.04 LTS won't install from CD

    - by Rob Hays
    I've been trying to install 12.04 LTS onto a Dell with a PIII from CD. Booting from the CD the install gets through the "Who are you" process, begins copying files. The progress bar gets as far as the last period in "Copying files...". The box clears, and an error box comes up "The installer has encountered an unrecoverable error. A desktop session will now be run so that you may investigae the problem or try installing again." When I try to install from this desktop session, the install gets to the same point, the copying files box closes, and then just stops. The pointer is busy, the cd drive spins up occaisonally with no data transfer, no hard drive activity. When I boot from the CD and access the disk boot menu, the disk checks good, memory checks good ( I upgraded the original memory to 512 mb). I also updated the bios to the newest from Dell. This is an older L866r, but should meet the requirements.

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  • Best Resources for learning SQL? [closed]

    - by Simon
    Possible Duplicate: Good Books and videos for absolute beginner to SQL I have landed a role as a product engineer for a web based product. A big part of the product is allowing its users the ability to create queries with SQL to pull in business information from their back end databases. I know the very basics of SQL and need to spend some time getting a better grasp on SQL. I have the tutorial from w3schools on my ToDo list, but was hoping to get some answers that point me to good resources for learning SQL. I have no preference - I can buy a book (SQL For Dummies?), or online resources, online videos, audio, etc.

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  • How do you make your applications looking more sexy?

    - by Roflcoptr
    The other title of this question could also be: How to improve my creativeness? During the past years I noticed that a loot of my small applications that I write in my free time to ease my life could also be useful for some of my friends. They asked me to get them a copy. Even if the applications are working as they should I feel a little bit embarrassed because they GUIs are all looking really ugly. The problem is, I always used standard and default-looking Buttons, TextBoxes etc. Now I thought about how to improve this. And yes I know it is possible to use themes, ImageButtons, ColorBrushes and so on. And now the real problem is: I can't really see which colors fit together and make a good design. Are there any techniques, books, other resources that help to improve to get a feeling for good designs, color combinations, UI element choose?

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  • XNA When to call LoadContent

    - by Peteyslatts
    I have an enum in my game that denotes the game state ie MainMenu, InGame, GameOver, Exit and I was wondering if it would be advisable to add a new one in for PrepGame - in which the game creates viewports for however many players there are, creates the battlefield etc. I feel like this is a good idea except for one thing: should I make a call back to LoadContent() in this state? I could just put a switch statement in the LoadContent for my currentGameState. If it equals PrepGame load things like the skybox, ship models, texures, HUD graphics etc. Or is it a good idea to create an Asset Manager class in the first call to LoadContent() and load everything then. I feel like both approaches have different benefits: faster, but more load times vs slower initial load time, but then all my objects are referencing the same variables so I only have to load each on once. Any help is greatly appreciated. Thanks, Peter

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  • game engine done, ideas missing

    - by Thoms
    I read at many places how people have this GREAT ideas but are not able to program themselves. I have quite the opposite problem. I have developed game engine, level editor, embedded Lua scripting language, I have even made wrapper for Android and it all works well. But I have no good idea about how to proceed with actual levels; I have no good ideas. The engine itself is very generic and can be used in many game concepts, but I just cannot think of anything useful. Do you have any thoughts on how to proceed? Where should I seek ideas? Who should I ask? I am sorry if this question is a duplicate.

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  • What books would I recommend?

    - by user12277104
    One of my mentees (I have three right now) said he had some time on his hands this Summer and was looking for good UX books to read ... I sigh heavily, because there is no shortage of good UX books to read. My bookshelves have titles by well-read authors like Nielsen, Norman, Tufte, Dumas, Krug, Gladwell, Pink, Csikszentmihalyi, and Roam. I have titles buy lesser-known authors, many whom I call friends, and many others whom I'll likely never meet. I have books on Excel pivot tables, typography, mental models, culture, accessibility, surveys, checklists, prototyping, Agile, Java, sketching, project management, HTML, negotiation, statistics, user research methods, six sigma, usability guidelines, dashboards, the effects of aging on cognition, UI design, and learning styles, among others ... many others. So I feel the need to qualify any book recommendations with "it depends ...", because it depends on who I'm talking to, and what they are looking for.  It's probably best that I also mention that the views expressed in this blog are mine, and may not necessarily reflect the views of Oracle. There. I'm glad I got that off my chest. For that mentee, who will be graduating with his MS HFID + MBA from Bentley in the Fall, I'll recommend this book: Universal Principles of Design -- this is a great book, which in its first edition held "100  ways to enhance usability, influence perception, increase appeal, make better design decisions, and teach through design." Granted, the second edition expanded that number to 125, but when I first found this book, I felt like I'd discovered the Grail. Its research-based principles are all laid out in 2 pages each, with lots of pictures and good references. A must-have for the new grad. Do I have recommendations for a book that will teach you how to conduct a usability test? Yes, three of them. To communicate what we do to management? Yes. To create personas? Yep -- two or three. Help you with UX in an Agile environment? You bet, I've got two I'd recommend. Create an excellent presentation? Uh hunh. Get buy-in from your team? Of course. There are a plethora of excellent UX books out there. But which ones I recommend ... well ... it depends. 

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  • Code testing practice

    - by Robin Castlin
    So now I have come to the conclusion like many others that having some way of constantly testing your code is good practice since it enables fewer people to be involved (colleges and customers alike) by simply knowing what's wrong before someone else finds out the hard way. I've heard and read some about Unit Testing and understand what it's supposed to do and all. The there are so many different types of bugs. It can be everything from web browser not being able not being able to send correct values, javascript failing, a global function messing up a piece of code somewhere to a change that looked good when testing it out but fails in some special case which was hard to anticipate. My simply finding these errors I learn to rarely repeat them again, but there seems to always be new bugs to be found and learnt from. I would guess maybe the best practice would be to run every page and it's functions a couple of times, witness the result and repeat this in Firefox, Chrome and Internet Explorer (and all smartphones apparently) to make sure it works as intended. However this would take quite some time to do consider I don't work with patches/versions and do little fixes here and there a couple of times per week. What I prefer would be some kind of page I can just load that tests as much things as possible to make sure the site works as intended. Basicly just run a lot of cURL's with POST-values and see if I get expected result. But how would I preferably not increase the IDs of every mysql rows if I delete these testing rows? It feels silly to be on ID 1000 with maybe 50 rows in total. If I could build a new project from scratch I would probably implement some kind of smooth way to return a "TRUE" on testing instead of the actual page. But this solution would for the moment being have to be passed on existing projects. My question What would you recommend to be the best way to test my site to make sure that existing functions does their job upon editing the code? Should I consider to implement a lot of edits first, then test manually the entire code to make sure it still works? Is there any nice way of testing codes without "hurting" the ID columns? Extra thoughs Would it be a good idea to associate all of my files to the different parts of my site which they affect? For instance if I edit home.php I will through documentation test if my homepage's start works as intended since it's the only part of my site it should affect.

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  • Broke my sudoers password, how do I reset it without using sudo?

    - by Eric Dand
    I thought it would be a good idea to finally take the password off my little netbook since it has never actually been of any use, and has mostly just slowed down . But when I went to change my password, there wasn't even an option to make it blank, and any attempt to make it a few easy characters was met with "Password too weak". So I did what any good geek would do and popped open the terminal, read the manual entry for passwd and quickly used the -d option to remove the password from my account. It all went well for a couple days (I even managed to also make my keychain password blank) until I tried to update the thing. My sudoers password is not blank, and it's not my old password. I have no idea what it is. How do I reset it (or even better, make it blank) without the use of the sudo command?

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  • What is the most reliable session storage in PHP: Memcache, database or files?

    - by user1179459
    What is the best and most safest way to handle PHP sessions. Is the best way to store sessions in: Database (more reliable, but high bottleneck, slow speed, not good for high database usage websites)? Memcache (super fast, but distributed more security problems, chances of loosing data when the server restarted and chances of loosing data when the cache is full)? Files (default option, I guess slow since it reads and writes from file I/O, less security, etc). Which method is the best? What are the problems and good things of each of those approaches?

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  • Considerations when designing a file type

    - by AndyBursh
    I'm about to start writing a process for saving some data structure from code in to a file of some proprietary, as-yet-undefined type. However, I've never designed a file type or structure before. Are there any things, generally speaking, that I should consider before starting my design? Are there any accepted good practices here? Bad practices I should avoid? Any absolute do's and don'ts? Can anybody recommend any good reading on this topic?

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  • Role change from Software Testing to Business Analyst [closed]

    - by Ankit
    After working for 4 years in software testing, I have finally got a chance to switch my career to BA profile. Well it has been my dream to get a BA profile. But, as I prepare my self to switch to a new profile and a new city. I ask myself is it really worth taking the risk. I am fairly senior in testing role and make a good amount of money. But, the charm of BA profile is too good to miss. Any comments ? Any suggestions ?

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  • From Editor-in-Chief to Reader (part two)

    - by alexismp
    It's time for me (Alexis) to move to new challenges and this 773rd post of mine on TheAquarium will be my last one. For all these years since TheAquarium was started by others, this place has seen the community come to life, grow and thrive. It has been an effective way for the GlassFish team to share our progress and for you the community to provide feedback, both good and not so good. Thank you for your continued readership, support and feedback, all of which contributed to keep TheAquarium the #1 technical blog at Oracle and helped us improve Java EE and GlassFish in a significant way. Oracle has exciting and ambitious plans for GlassFish 4.0 and Java EE 7 and I trust TheAquarium will remain an important link in the chain as both of these are being delivered. I leave you in the hands of savvy and sharp contributors. Long live The Aquarium! - AlexisMP

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  • How to recommend that Google indexes some keywords?

    - by Werewolf
    I've read many articles about SEO. I've tried to implement my knowledge on a site but I haven't gotten good results in 6 months. e.g.: I've used Google Webmaster Tools, sitemaps, title tags, keywords in paragraphs, etc. My Alexa rank is growing but Google detected some keywords that isn't my goal :-(. Is there a good way to focus on a keyword on search engines? How can I recommend Google to index some desired keywords? (They are available in my pages.)

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  • Getting a job at Google/Microsoft companies [on hold]

    - by user2498079
    Alot of people say it is very hard to get a job at Google/Microsoft. Due to insufficient number of jobs, there is very tough competition for fresh graduates to get a job at the worthy company. I have read certain articles which encourage fresh graduates to have good projects (Programming projects), Focus on Accomplishments or have a good reputation on websites like this one. So my question is what kind of programming projects & accomplishments help in getting job at Google/Microsoft. There are alot of other factors like communication skills & leadership etc but this is not the main concern here. Regards

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  • JavaOne 2012 demo of Java SE Embedded on Raspberry Pi

    - by hinkmond
    Here's the Inquirer's article about our Java SE Embedded demos at JavaOne 2012 this year. Simon Ritter had a fun presentation showing the cool demo on the Raspberry Pi at his talk. See: Demo Java SE Embedded on Raspberry Pi Here's a quote: Oracle demonstrated Java SE for embedded devices running on the Raspberry Pi bare bones computer at the Java One show on Wednesday, with the aim of encouraging developers to try it out for themselves to create reference libraries for the target school children audience. I had the presentation after Simon and saw the size crowd he had. They were laughing and clapping at the demo and having a good ol' time. Good to see the interest in Java SE Embedded, even if it is for a "toy" device like the Raspberry Pi. Hinkmond

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  • Which CMS can I use for my project?

    - by Nicolás A.
    I have to build a new website for my client.. and he needs this stuff: A user generated content website.. where users can upload their own videos.. (i will use a video hosting platform with api like fliqz.com) I must manage a big user system.. where users can create their own "sub-users"... the site must manage paid subscriptions and payments through paypal.. and other payment gateways... So the question is.. i have to use a pre-built CMS and extend it.. or just a good framework? I've been thinking about joomla, drupal and expressionengine... It's not neccesary to use a open source cms... I've looking at drupal.. but is not as easy to understand and extend... Can anyone help me to make a good decision?

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  • RTOS experience

    - by Subbu
    I have been working as an embedded software engineer on mostly 8 bit micro-controller firmware and desktop/mobile applications development for the past five years. My work on a WinCE project (in which I got introduced to .NET CF) was short lived. I did use core APIs for interrupt processing, peripheral communication, etc...but again, not exactly a pure RTOS environment. In order to get together more solid experience for growing more in the embedded field, I want to work more with RTOSes. Will buying an evaluation board with an RTOS and putting together a project at home be regarded as a good experience or will an online course be more useful? I am just not clear as to what will be regarded as good experience. Any suggestions or directions will greatly help me. I have a passion for the field but just a need a point in the right direction.

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  • The best DPI value to let you work nicely [closed]

    - by user827992
    I'm probably about to buy a laptop, unfortunely they all have glare screen, even the "premium" device, the actual offer just differentiate on 2-3 variations about DPI and display resolution; considering that i would like a 13" laptop, what can be the best resolution? I was looking for a 4:3 but this days they are all cheap-made so i do not think that something expensive to produce like a 4:3 is on the market. on the 13" laptops i see that basically there are available 3 kinds of displays: 1366x768 ( a 16:9 ratio ) 1400x900 ( a 16:10 ratio ) 1600x900 ( a 16:9 ratio ) Honestly i'm asking for an advice because i do not like this things, not even one of them, but this is the market today, i was looking for some old-style laptop with good plastics, a 4:3 ratio or 5:4 or something like that and a true matte finish with an higher resolution compared to what you could find in the old laptops. Since programming involves the presence of many text character on the screen it's a good thing to choose the one with the highest DPI/PPI ?

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  • What is the SEO-recommended method for using underscores and dashes in URLs that contain geographic locations?

    - by ElHaix
    In reading through this article: In Subfolder & File Names, Use Dashes, Not Underscores Good: Good: http://www.domain.com/sub-folder/file-name.htm Bad: http://www.domain.com/sub_folder/file_name.htm In my URL's, I may have one or two city names, ending with the province/state: Burnaby_New_Westminister-BC/[some search term]. My URL rules currently are defined such that everything after the dash is the prov/state. Some geographic locations already contain dashes: Notre-Dame-de-Grâce (in QC), which I would convert to ~/Notre_Dame_de_Grace-QC/ I thought of placing the prov/state after another "/", however in some cases the province/state name may not exist, thus ~/Notre_Dame_de_Grace/, so the first term after the domain name contains the geo location {city, city_name-state}. I am now revisiting this, and wondering if this rule set should change, and if so, what is the recommended way of implementing this? -- UPDATE -- After reviewing this video, I see that I should be using the dashes, rather than underscores. However since I still want to have my geo locations in the first URL section, is there anything wrong with using a double-dash separator - ie: /city-name--state/ ?

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  • URL slugs: ideal length, and the real SEO effects of these slugs

    - by tattvamasi
    this question is addressed widely on SO and outside it, but for some reason, instead of taking it as a good load of great advice, all this information is confusing me. ** Problem ** I already had, on one of my sites, "prettified" urls. I had taken out the query strings, rewritten the URLS, and the link was short enough for me, but had a problem: the ID of the item or post in the URL isn't good for users. One of the users asked is there's a way to get rid of numbers, and I thought it was better for users to just see a clue of the page content in the URL. ** Solution ** With this in mind, I am trying with a section of the site.Armed with 301 redirects, some parsing work, and a lot of patience, I have added the URL slugs to some blog entries, and the slug of the URL reports the title of the article (something close to http://example.com/my-news/terribly-boring-and-long-url-that-replaces-the-number-I-liked-so-much/ ** Problems after Solution ** The problem, as I see it, is that now the URL of those blog articles is very descriptive for sure, but it is also impossible to remember. So, this brings me to the same issue I had with my previous problem: if numbers say nothing and can't be remembered, what's the use of these slugs? I prefer to see http://example.com/my-news/1/ than http://example.com/my-news/terribly-boring-and-long-url-that-replaces-the-number-I-liked-so-much/ To avoid forcing my user to memorize my URLS, I have added a script that finds the closest match to the URL you type, and redirects there. This is something I like, because the page now acts as a sort of little search engine, and users can play with the URLS to find articles. ** Open questions ** I still have some open questions, and don't seem to be able to find an answer, because answers tend to contradict one another. 1) How many characters should an URL ideally be long? I've read the magic number 115 and am sticking to that, but am not sure. 2) Is this really good for SEO? One of those blog articles I have redirected, with ID number in the URL and all, ranked second on Google. I've just found this question, and the answer seems to be consistent with what I think URL slug and SEO - structure (but see this other question with the opposite opinion) 3) To make a question with a specific example, would this URL risk to be penalized? Is it acceptable? Is it too long? StackOverflow seems to have comparably long URLs, but I'm not sure it's a winning strategy in my case. I just wanted to facilitate my users without running into Google's algorithms.

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  • How to make transition from one-man to small team successfull

    - by si2w
    I have started a big project 1 1/2 ago. It's time to have some help to face the future challenges. Actually I'm the engineer, the architect, the dba, the sysadmin etc... The transistion is not so simple and it's difficult to find the good person. When we will find this person, what's the best ways to manage him/her to give enough freedom to be happy and productive but have a clean, fast, reuseable, working, ... code ? Is there good books you advice ? Thanks !

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  • What almost unknown programming language of 21st century a programmer should be introduced to?

    - by bigown
    Which languages almost nobody talks about but has some interesting features or concepts? It must satisfy the following 2 criteria: It must have been created in 2000 or later. Ex.: REBOL, Squeak, Oberon, etc. are out. It can't have some fame among programmers. Ex.: Groovy, C#, Scala, Go, Clojure, D, etc are out. The language doesn't need be good or totally implemented. License or platform doesn't matter. The language needs to be new and interesting. I posted a good example of language I wanna know. If you wish TIOBE can be used as reference to measure "fame", but don't cling on it.

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  • process monitoring in c under linux

    - by poly
    I'm trying to write a multi threaded/processes application and it need to know how to monitor a process from another process all the time. So here is what I have, I have a 2 processes, each with multiple threads that handle the network part, then another 2 process also with multiple threads that interact with DB and with the network processes, what I need to do is that if for example one of the network processes goes down the DB process start sending to the live network process until the second one is up again. I'm using fifo between the DB and the network process. I was thinking of sending messages with message passing all the time but not sure whether this is a good idea or I need to use some other IPC for this issue, or probably neither is good and I need to use entirely something else? Thanks,

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