sudo apt-get install mesa results in:  Reading package lists... Done Building dependency tree        Reading state information... Done E: Unable to locate package mesa     lspci -k | grep VGA -A2 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280]     Subsystem: XFX Pine Group Inc. Device 3221     Kernel driver in use: fglrx_pci
When I try to install any package through the command line, I get an error.   $ sudo apt-get install &lt;package&gt; Reading package lists... Done Building dependency tree        Reading state information... Done E: Unable to locate package &lt;package&gt;   Can anyone help me on this?
When a user on our site loses his password and heads off to the Lost Password page we need to give him a new temporary password. I don't really mind how random this is, or if it matches all the "needed" strong password rules, all I want to do is give them a password that they can change later.  The application is a Web application written in C#. so I was thinking of being mean and going for the easy route of using part of a Guid. i.e.  Guid.NewGuid().ToString("d").Substring(1,8)   Suggesstions? thoughts? I've been doing ASP.NET development for a little while now, and I've used both the GridView and the DataGrid controls before for various things, but I never could find a really good reason to use one or the other. I'd like to know:  What is the difference between these 2 ASP.NET controls? What are the advantages or disadvantages of both? Is one any faster? Newer? Easier to maintain?  The intellisense summary for the controls doesn't seem to describe any difference between the two. They both can view, edit, and sort data and automatically generate columns at runtime.  Edit: Visual Studio 2008 no longer lists DataGrid as an available control in the toolbox. It is still available (for legacy support I assume) if you type it in by hand though. How to style text in hyperref \url? I want to set color, font and similar style attributes for the text in a \url from the hyperref package. How do I go about doing it? All I have found are . I want to because I am using ttf fonts for my texts and I want my urls to be in that ttf and not the default (typewriter font?) that the hyperref package gives me. I started with just trying to get it in italics but didn't even succeed with that:  \documentclass{memoir} \usepackage{hyperref} \begin{document} Lala \url{\itshape www.example.com}. \end{document}     I am guessing there is some hook or something but I just can't find it. Maybe I have gone blind? I am very confused about how to compute  $$\sum_{n=0}^{\infty}nk^n.$$  Can anybody help me? How do I unset an element in an array in javascript? BIGINT UNSIGNED value is out of range Getting error using JMeter behind a proxy I am new to JMeter and trying to run a test from behind a corporate proxy. I read on the same from apache site and followed the same process so as to run the test. However, i am still  unable to record a test from behind the proxy.      This message always appears after pressing on 'Start' recording:     After that, I have changed apache port to 8000 as in below and made it different      This time after pressing on start was this message Let $a_{n+1}=\sqrt{a_1+a_2+\cdots+a_n}$ .Prove that $ \lim\limits_{n \rightarrow \infty} \frac{a_n}{n}=\frac{1}{2}$ A sequence $a_n$ is defined as $a_1=1$ and $a_{n+1}=\sqrt{a_1+a_2+\cdots+a_n}$ .Prove that $ \lim\limits_{n \rightarrow \infty} \frac{a_n}{n}=\frac{1}{2}$  I have no idea how to approach this. But I have a feeling that Cesaro's lemma may come in handy Round function in Excel, worksheet function vs VBA A company is any form of business whether it is small or large. Generally the term &quot;company&quot; indicates a particular kind of business dealing in a specific product. An organisation is the larger form and generally comprises of a number of companies.  Simply, a company is an organization, but an organization is not just a company. An industry is the combination of companies in same line of business. Firm, corporation and business  are synonyms of &quot;company&quot;. An Agency is a particular kind of company, which serves as an intermediary between clients (other companies or individuals).  Is this correct? Creating Workflow -> Error When I try to create a new WF in my Sharepoint Designer I get following error:     The list of workflow actions on the server references an assembly that   does not exist. Some actions will not be avaliable. The assembly   strong name is "Microsoft.SharePoint.WorkFlowActions,   Version=14.0.0.0,Cultureneutral,PublickeyToke=   Does any on know how to fix this problem? Non-hidden directory doesn't show in Explorer, but the program that made it can access it Does $\sum_{k=1}^{\infty}\ln(\frac{k}{k+1})$ converge/diverges?? Does this series converge or diverge? $$\sum_{k=1}^{\infty}\ln(\frac{k}{k+1})$$   my thought is that, I can break it down to $$\sum_{k=1}^{\infty}\ln(k) - \sum_{k=1}^{\infty}\ln(k+1)$$ then maybe using comparison test or something? But I don't know exactly how to prove whether this series converges or diverges.  Any help would be appreciated! When should I use mmap for file access? POSIX environments provide at least two ways of accessing files.  There's the standard system calls open(), read(), write(), and friends, but there's also the option of using mmap() to map the file into virtual memory.  When is it preferable to use one over the other?  What're their individual advantages that merit including two interfaces? How to rank a million images with a crowdsourced sort Geometric interpretation of Electromagnetism NSDate Format outputting wrong date New Chain causing skipping on cassette - will this work itself out or is it unsafe? I just installed a new chain on my 2002 Trek 2200 Road Bike.  The old chain was a Shimano 9 speed that I installed 18 months and about 5000 miles ago.  It had stretched modestly and was full of winter cruft/grime.  The new chain is a SRAM 9 speed, my first time using the gold snap ring system.  I followed instructions and made sure I have the same link count as the chain that came off the bike.  The cassette was new with the old chain, so it has about 5000 miles on it and doesn't appear to have significant wear.  After installation and a clean/wipe/lube/wipe, I took it for a 15 mile easy ride at about 15-16 mph.  It shifts perfectly and I didn't have to make any adjustments to either derailleur.  Three times, however, when putting it under stain (once on a modest hill climb, once starting from a stop sign in a fairly big gear, and once on an acceleration coming out of a sharp turn) it skipped several teeth and caused my foot to slam down hard.  On the hill, it actually hurt as I had my weight off the saddle (not really standing) and I came down hard on the inside of my thigh.  I think all three were on the right side (power train side) pedal stroke, and I don't think they were all in the same gear.  I'm pretty sure it was the rear cassette that skipped, not the front chainring, but it did happen really fast each time.  I will also say that it's not like these were the only three times I put substantial pressure on the pedals in the ride - I wasn't going hard, but I wasn't being tentative or anything.  Also, in case it's relevant, it was cold, about 40 degrees F or about 4 degrees Centigrade.    My question:  Is this going to get me hurt, or will the new chain 'settle in' over a few rides?  I searched here and pretty much got confirmation of what I had previously thought, that you always get a new chain when you get a new cassette, but you should be able to get a few chains out of each cassette.  Thanks! Why is this trigger finding a null value despite the field being populated? How to manage users and groups using GUI? Just switched from 10.04 to 11.10. I'm wondering about the limited options in the GUI for managing users and groups. Where is the old GUI to change groups, id's, etc. I know that I can do this from cli, that's no problem. But I want this comfortable GUI back.