Just to let other people know, this process could take very, very long. My 100 GB AMI takes like 2.5 hours to create and the progress bar jumps from 0 to 100 directly after that. So don&#39;t worry.

This answer pertains to a retirement situation where there is potentially a hardware failure for an instance with a EBS root volume. In this situation, AWS recommends creating an AMI of the instance to be retired, and starting a new instance from this AMI. In my situation, the instance was not responding before starting the AMI creation process. 

The AMI creation step failed to complete after &gt;8 hours. 

I next tried stopping the instance. This also failed to complete in &gt;10 minutes, so I tried force stopping the instance (by issuing the stop command again). The force stop did complete after a few minutes. After the instance was stopped, the AMI creation succeeded in &lt;10 minutes. 

This AWS forum message seemed relevant to my case:
https://forums.aws.amazon.com/thread.jspa?messageID=372982&amp;#372982

I am learning [Bootstrap][1]. On the getting started menu, there are few templates given. I am playing with that. One example is about fixed Footer. I used nav from previous example and wanted to adjust that with fixed footer. But vertical scrollbar is coming. **I am looking for element which is causing Vertical Scroll Bar.** 

Here is HTML:


    &lt;!DOCTYPE html&gt;
    &lt;html lang=&quot;en&quot;&gt;
        &lt;head&gt;
            &lt;meta charset=&quot;utf-8&quot;&gt;
            &lt;title&gt;Bootstrap, from Twitter&lt;/title&gt;
            &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1.0&quot;&gt;
            &lt;meta name=&quot;description&quot; content=&quot;&quot;&gt;
            &lt;meta name=&quot;author&quot; content=&quot;&quot;&gt;
    
            &lt;!-- Le styles --&gt;
            &lt;link href=&quot;css/bootstrap.css&quot; rel=&quot;stylesheet&quot;&gt;
    
            &lt;style type=&quot;text/css&quot;&gt;
    
                /* Sticky footer styles
                -------------------------------------------------- */
    
                html,
                body {
                    height: 100%;
                    /* The html and body elements cannot have any padding or margin. */
                }
    
                /* Wrapper for page content to push down footer */
                #wrap {
                    min-height: 100%;
                    height: auto !important;
                    height: 100%;
                    /* Negative indent footer by it&#39;s height */
                    margin: 0 auto -60px;
                }
    
                /* Set the fixed height of the footer here */
                #push,
                #footer {
                    height: 60px;
                }
                #footer {
                    background-color: #f5f5f5;
                }
    
                /* Lastly, apply responsive CSS fixes as necessary */
                @media (max-width: 767px) {
                    #footer {
                        margin-left: -20px;
                        margin-right: -20px;
                        padding-left: 20px;
                        padding-right: 20px;
                    }
                }
    
    
    
                /* Custom page CSS
                -------------------------------------------------- */
                /* Not required for template or sticky footer method. */
    
                .container {
                    width: auto;
                    max-width: 680px;
                    height: auto;
                }
                .container .credit {
                    margin: 20px 0;
                }
    
                /* Adjust Nav */
                #wrap &gt; .container {
                    margin-top: 60px;
                }
    
            &lt;/style&gt;
    
            &lt;link href=&quot;css/bootstrap-responsive.css&quot; rel=&quot;stylesheet&quot;&gt;
    
            &lt;!-- HTML5 shim, for IE6-8 support of HTML5 elements --&gt;
            &lt;!--[if lt IE 9]&gt;
              &lt;script src=&quot;html5shiv.js&quot;&gt;&lt;/script&gt;
            &lt;![endif]--&gt;
    
            &lt;!-- Fav and touch icons --&gt;
    
            &lt;link rel=&quot;apple-touch-icon-precomposed&quot; sizes=&quot;144x144&quot; href=&quot;ico/apple-touch-icon-144-precomposed.png&quot;&gt;
            &lt;link rel=&quot;apple-touch-icon-precomposed&quot; sizes=&quot;114x114&quot; href=&quot;ico/apple-touch-icon-114-precomposed.png&quot;&gt;
            &lt;link rel=&quot;apple-touch-icon-precomposed&quot; sizes=&quot;72x72&quot; href=&quot;ico/apple-touch-icon-72-precomposed.png&quot;&gt;
            &lt;link rel=&quot;apple-touch-icon-precomposed&quot; href=&quot;ico/apple-touch-icon-57-precomposed.png&quot;&gt;
            &lt;link rel=&quot;shortcut icon&quot; href=&quot;ico/favicon.png&quot;&gt;
    
        &lt;/head&gt;
    
        &lt;body&gt;
            &lt;div id=&quot;wrap&quot;&gt;
                &lt;div class=&quot;navbar navbar-inverse navbar-fixed-top&quot; &gt;
                    &lt;div class=&quot;navbar-inner&quot;&gt;
                        &lt;div class=&quot;container&quot;&gt;
                            &lt;button type=&quot;button&quot; class=&quot;btn btn-navbar&quot; data-toggle=&quot;collapse&quot; data-target=&quot;.nav-collapse&quot;&gt;
                                &lt;span class=&quot;icon-bar&quot;&gt;&lt;/span&gt;
                                &lt;span class=&quot;icon-bar&quot;&gt;&lt;/span&gt;
                                &lt;span class=&quot;icon-bar&quot;&gt;&lt;/span&gt;
                            &lt;/button&gt;
                            &lt;a class=&quot;brand&quot; href=&quot;#&quot;&gt;Project name&lt;/a&gt;
                            &lt;div class=&quot;nav-collapse collapse&quot;&gt;
                                &lt;ul class=&quot;nav&quot;&gt;
                                    &lt;li class=&quot;active&quot;&gt;&lt;a href=&quot;#&quot;&gt;Home&lt;/a&gt;&lt;/li&gt;
                                    &lt;li&gt;&lt;a href=&quot;#about&quot;&gt;About&lt;/a&gt;&lt;/li&gt;
                                    &lt;li&gt;&lt;a href=&quot;#contact&quot;&gt;Contact&lt;/a&gt;&lt;/li&gt;
                                &lt;/ul&gt;
                            &lt;/div&gt;&lt;!--/.nav-collapse --&gt;
                        &lt;/div&gt;
                    &lt;/div&gt;
                &lt;/div&gt;
    
                &lt;div class=&quot;container&quot;&gt;
    
                    &lt;h1&gt;Bootstrap starter template&lt;/h1&gt;
                    &lt;p&gt;Use this document as a way to quick start any new project.&lt;br&gt; All you get is this message and a barebones HTML document.&lt;/p&gt;
    
                &lt;/div&gt; &lt;!-- /container --&gt;
                &lt;div id=&quot;push&quot;&gt;&lt;/div&gt;
            &lt;/div&gt; &lt;!-- End Wrap --&gt;
    
            &lt;div id=&quot;footer&quot;&gt;
                &lt;div class=&quot;container&quot;&gt;
                    &lt;p class=&quot;muted credit&quot;&gt;Example courtesy &lt;a href=&quot;http://martinbean.co.uk&quot;&gt;Martin Bean&lt;/a&gt; and &lt;a href=&quot;http://ryanfait.com/sticky-footer/&quot;&gt;Ryan Fait&lt;/a&gt;.&lt;/p&gt;
                &lt;/div&gt;
            &lt;/div&gt;
    
    
            &lt;!-- Le javascript
            ================================================== --&gt;
            &lt;!-- Placed at the end of the document so the pages load faster --&gt;
            &lt;script src=&quot;../jquery.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-transition.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-alert.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-modal.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-dropdown.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-scrollspy.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-tab.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-tooltip.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-popover.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-button.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-collapse.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-carousel.js&quot;&gt;&lt;/script&gt;
            &lt;script src=&quot;js-ext/bootstrap-typeahead.js&quot;&gt;&lt;/script&gt;
    
        &lt;/body&gt;
    &lt;/html&gt;



**Is there any trick, which works in these cases to know which Element is causing Scroll Bar?** I faced similar problem earlier, I do not remember if I could find the easy solution.

  [1]: http://getbootstrap.com/2.3.2/getting-started.html


How to Know Which HTML Element is Causing Vertical Scroll Bar

How can I import an arbitrary python source file (whose filename could contain any characters, and does not always ends with `.py`) in **Python 3.3+**?

I used [`imp.load_module`][1] as follows:

    &gt;&gt;&gt; import imp
    &gt;&gt;&gt; path = &#39;/tmp/a-b.txt&#39;
    &gt;&gt;&gt; with open(path, &#39;U&#39;) as f:
    ...     mod = imp.load_module(&#39;a_b&#39;, f, path, (&#39;.py&#39;, &#39;U&#39;, imp.PY_SOURCE))
    ...
    &gt;&gt;&gt; mod
    &lt;module &#39;a_b&#39; from &#39;/tmp/a-b.txt&#39;&gt;

It still works in Python 3.3, but according to `imp.load_module` documentation, it is deprecated:

&gt; *Deprecated since version 3.3*: Unneeded as loaders should be used to
&gt; load modules and find_module() is deprecated.

and `imp` module documentation recommends to use `importlib`:

&gt; **Note** New programs should use importlib rather than this module.

What is the proper way to load an arbitrary python source file in Python 3.3+ without using the deprecated `imp.load_module` function?

  [1]: http://docs.python.org/3/library/imp.html#imp.load_module

Import arbitrary python source file. (Python 3.3+)

I&#39;m creating an AMI for a server with 100G files. It&#39;s been like an hour and it&#39;s still not finished. (The AMI still says pending) Is there something wrong with it? What should I do?



Creating AMI takes so long

<p>I'm creating an AMI for a server with 100G files. It's been like an hour and it's still not finished. (The AMI still says pending) Is there something wrong with it? What should I do?</p>


When I launch an instance on EC2, it gives me option for t1.micro, m1.small, m1.large etc. There is a comparision chart of vCPU, ECU, CPU cores, Memory, Instance store. Is this memory RAM of a system ?  


![enter image description here][1]
    


  [1]: http://i.stack.imgur.com/k407N.png


I am not able to understand what all these terms refer to, can anyone give me a clear picture of what these terms mean ?


What does ECU units, CPU core and memory mean when I launch a instance

I have my instance of the Amazon AWS running, test page is up. 

I am trying to SFTP the files to the server to display my website. I have Filezilla connected to the AWS server but when I try to move the files from my local machine to the /var/www/html directory, it says permission denied.

I just figured out I CAN move the files to the /home/ec2-user directory. So my files are on the server I guess. But when I try to move them from there to the /var/www/html directory, it still won&#39;t move them, permission denied. 

I&#39;ve been researching this for approximately 2 hours now but I haven&#39;t been able to locate the answer to this.


Any help is greatly appreciated, i&#39;m so close! Haha

Thanks


UPDATE

![enter image description here][1]


  [1]: http://i.stack.imgur.com/HZrV9.png

Amazon AWS Filezilla transfer permission denied

When I run `df -h` on my Amazon EC2 server, this is the output:

    [ec2-user@ip-XXXX ~]$ df -h
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/xvda1             25G   25G     0 100% /
    tmpfs                 4.0G     0  4.0G   0% /dev/shm


For some reason, something is eating up my storage space.

I am trying to find all of the big files/folders 
and this is what I get back:

    [ec2-user@ip-XXXX ~]$ sudo du -a / | sort -n -r | head -n 10
    993580  /
    639296  /usr
    237284  /usr/share
    217908  /usr/lib
    206884  /opt
    150236  /opt/app
    150232  /opt/app/current
    150224  /opt/app/current/[deleted].com
    113432  /usr/lib64


How can I find out what&#39;s eating my storage space?

How can I find out why my storage space on Amazon EC2 is full?

I have a VPC set up in AWS.
we have created 2 subnets (A/24 and B/24), straight using all the IP having no IP&#39;s/Subnets for further usage.

We find that the b/24 is not totally utilized and we are wasting the Ip address in that.

Now we want to reduce the subnet size and  move the instances from B/24 to A/24. and create 4 smaller subnets from B/24 and of /28 range and move back the servers to one of the smaller subnets created.

Please advise what are the suggested best practices we can apply in a way that we should be able to keep our available servers in B/24 and create multiple subnets as well.

How can I move EC2 instances to a different subnet?

I am using Amazon&#39;s tutorial for [installing a LAMP server][1]. The first several instructions involve using `yum`, but every single way I have tried to do it has resulted in the same message. I have found a few other recent questions about the same issue, none of which change anything on my setup.

Here is the message:

    Loaded plugins: priorities, update-motd, upgrade-helper
    Could not retrieve mirrorlist http://repo.us-east-1.amazonaws.com/latest/main/mirror.list error was
    12: Timeout on http://repo.us-east-1.amazonaws.com/latest/main/mirror.list: (28, &#39;Connection timed out after 10001 milliseconds&#39;)


    One of the configured repositories failed (Unknown),
    and yum doesn&#39;t have enough cached data to continue. At this point the only
    safe thing yum can do is fail. There are a few ways to work &quot;fix&quot; this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Disable the repository, so yum won&#39;t use it by default. Yum will then
        just ignore the repository until you permanently enable it again or use
        --enablerepo for temporary usage:

            yum-config-manager --disable &lt;repoid&gt;

     4. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=&lt;repoid&gt;.skip_if_unavailable=true

     Cannot find a valid baseurl for repo: amzn-main/latest

I have done this same thing before without running into any problems, using the same tutorial, but it was several months ago. I don&#39;t know what has changed but my meager experience is keeping me from figuring it out.

  [1]: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-LAMP.html

Amazon EC2 instance can&#39;t update or use yum

Question:
-

How should I use the new AWS EC2 classes (r3, i2) with my existing AMI without recreating the whole system setup? 

The new EC2 classes support only HVM based virtualization but I have only PVM AMI images.



Amazon EC2: how to convert an existing PV AMI to HVM

I switch instances between different regions frequently and sometimes I forget to turn off my running instance from a different region. I couldn&#39;t find any way to see all the running instances on Amazon console.  
Is there any way to display all the running instances regardless of region?

Content Type	Original Author	Original Content on Stackoverflow
Question	jackhao	View Question on Stackoverflow
Solution 1 - Amazon Ec2	jackhao	View Answer on Stackoverflow
Solution 2 - Amazon Ec2	mattm	View Answer on Stackoverflow

Creating AMI takes so long

Amazon Ec2 Problem Overview

Amazon Ec2 Solutions

Solution 1 - Amazon Ec2

Solution 2 - Amazon Ec2

Import arbitrary python source file. (Python 3.3+)

How to Know Which HTML Element is Causing Vertical Scroll Bar

Attributions