Diff for /wikisrc/amazon_ec2/first_steps.mdwn between versions 1.3 and 1.4

version 1.3, 2013/02/05 12:31:33 version 1.4, 2019/10/08 11:03:51
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 These instances are tied to a *region* (a geographical location; typically US East, US West, Europe West, etc.). Each region has *availability zones*, which can be compared to a sub-region, each one being physically distinct from another. Regions are identified by a name, like *us-east-1*, *eu-west-1*. Same goes for availability zones, usually with the region's name as prefix: *us-east-1a*, *us-east-1b*, and so forth. Note that resources are **not** shared between zones, so if you transfer data from one zone to another, you will be charged for it.  These instances are tied to a *region* (a geographical location; typically US East, US West, Europe West, etc.). Each region has *availability zones*, which can be compared to a sub-region, each one being physically distinct from another. Regions are identified by a name, like *us-east-1*, *eu-west-1*. Same goes for availability zones, usually with the region's name as prefix: *us-east-1a*, *us-east-1b*, and so forth. Note that resources are **not** shared between zones, so if you transfer data from one zone to another, you will be charged for it.
   
 AKI, or *Amazon Kernel Image*, are a specific type of image. It represents the Xen guest para-virtualized kernel, as used by an AMI. Certain AKIs are allowed to boot customized operating systems, e.g. those that are still not officially supported by Amazon. Thanks to [PyGrub](http://wiki.xensource.com/xenwiki/PyGrub), it can boot a kernel that resides inside an AMI's snapshot.  AKI, or *Amazon Kernel Image*, are a specific type of image. It represents the Xen guest para-virtualized kernel, as used by an AMI. Certain AKIs are allowed to boot customized operating systems, e.g. those that are still not officially supported by Amazon. Thanks to [PyGrub](https://wiki.xenproject.org/wiki/PyGrub), it can boot a kernel that resides inside an AMI's snapshot.

Removed from v.1.3  
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  Added in v.1.4


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