[StarCluster] building an ami corrupts the original reference machine?

[Jennifer Staab]

Glad you got it working.  I had no idea about the difference between the 
two versions regarding AMI creation. For AMI creation, I find it easier 
to use the console. This way I can label and provide a detailed 
description of the AMIs I create and label their corresponding snapshots 
in the same way so that I have an easier time deleting them when they 
are no longer of use to me.

Good Luck!

-Jennifer

On 1/16/15 8:43 PM, Robert Yu wrote:
> I was able to run starcluster with 0.95.6 with an ami that was created 
> through the AWS console.
> The reference machine didn't have to be running either! That solves my 
> problem.  Thanks for the
> work-around.
>
> -Robert
>
> On Fri, Jan 16, 2015 at 4:31 PM, Robert Yu <robert.yu at aditazz.com 
> <mailto:robert.yu at aditazz.com>> wrote:
>
>     Thanks for the response.
>
>     I did some further experiments, and it looks like 0.95.6 clears
>     out "/root" before it builds the ami, whereas
>     0.93.3 did not.  I'll try creating the ami through the AWS console
>     as a work-around.
>
>     -Robert
>
>     On Fri, Jan 16, 2015 at 4:01 PM, Jennifer Staab <jstaab at cs.unc.edu
>     <mailto:jstaab at cs.unc.edu>> wrote:
>
>         I can't attest to the behavior of StarCluster regarding AMI
>         creation because I usually do my AMI creation from AWS
>         console. I can say that in the past I had SSH go down if I
>         created an AMI of a running instance. Luckily after the AMI
>         was completed and I reboot a few times I got SSH functionality
>         back without having to mount my EBS backed instance to another
>         running instance to restore SSH functionality.  After that
>         experience I just stop the instance prior to making an AMI. 
>         This of course only works on EBS backed instances where the
>         stopping them doesn't result in termination -- also stopping
>         will dump all that you have stored in instance storage.  If
>         rebooting the instance doesn't work you can look here
>         <http://alestic.com/2011/02/ec2-fix-ebs-root> for directions
>         on mounting to another running instance to restore functionality.
>
>         Good Luck!
>         -Jennifer
>
>
>         On 1/16/15 6:32 PM, Robert Yu wrote:
>>         Hi,
>>
>>         I just updated to 0.95.6 from 0.93.3.
>>
>>         I noticed that after I run "starcluster ebsiimage ..." to
>>         create an ami from a running reference instance,
>>         I can *no longer* ssh into the reference machine using
>>         "starcluster sshmaster ...":
>>
>>             StarCluster - (http://star.mit.edu/cluster) (v. 0.95.6)
>>             Software Tools for Academics and Researchers (STAR)
>>             Please submit bug reports to starcluster at mit.edu
>>             <mailto:starcluster at mit.edu>
>>
>>             Connection closed by xx.xxx.xxx.xxx
>>
>>
>>         Maybe I am doing something wrong, but I don't recall this
>>         behavior with 0.93.3
>>
>>         Thanks,
>>         Robert
>>
>>         -- 
>>         Robert Yu, Member Technical Staff
>>
>>         www.aditazz.com <http://www.aditazz.com> |
>>         robert.yu at aditazz.com <mailto:robert.yu at aditazz.com>
>>         2000 Sierra Point Parkway, 12th Floor | Brisbane | CA 94005
>>         510.459.0216 <tel:510.459.0216> | cell
>>         650.627.7357 <tel:650.627.7357> | 650.492.7000 x1008
>>         <tel:650.492.7000%20x1008> | work
>>         650.684.1149 <tel:650.684.1149> | fax
>>
>>         /'$ make building'/
>>         <https://aditazz.atlassian.net/wiki/display/SW/$+make+building>
>>
>>
>>         _______________________________________________
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>>         StarCluster at mit.edu  <mailto:StarCluster at mit.edu>
>>         http://mailman.mit.edu/mailman/listinfo/starcluster
>
>
>
>
>     -- 
>     Robert Yu, Member Technical Staff
>
>     www.aditazz.com <http://www.aditazz.com> | robert.yu at aditazz.com
>     <mailto:robert.yu at aditazz.com>
>     2000 Sierra Point Parkway, 12th Floor | Brisbane | CA 94005
>     510.459.0216 <tel:510.459.0216> | cell
>     650.627.7357 <tel:650.627.7357> | 650.492.7000 x1008
>     <tel:650.492.7000%20x1008> | work
>     650.684.1149 <tel:650.684.1149> | fax
>
>     /'$ make building'/
>     <https://aditazz.atlassian.net/wiki/display/SW/$+make+building>
>
>
>
>
> -- 
> Robert Yu, Member Technical Staff
>
> www.aditazz.com <http://www.aditazz.com> | robert.yu at aditazz.com 
> <mailto:robert.yu at aditazz.com>
> 2000 Sierra Point Parkway, 12th Floor | Brisbane | CA 94005
> 510.459.0216 | cell
> 650.627.7357 | 650.492.7000 x1008 | work
> 650.684.1149 | fax
>
> /'$ make building'/ 
> <https://aditazz.atlassian.net/wiki/display/SW/$+make+building>

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