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I have an EBS AMI which I want to publish in AWS Market Place. The AMI was created with data in /mnt. The snapshop includes both /dev/sda1 and /dev/sdb devices : Block Devices: /dev/sda1=snap-xxxxxx:8:true:standard, /dev/sdb=ephemeral0

My problem is that when I create an instance-store root device instance (with ephemeral device /dev/sdb) the /mnt folder is empty.

I know this is due to the fact that ephemeral disk are not copied for instance-store root device. So, what I would like to know is how can I create an AMI, that :

  1. can generate all type of instances (from micro to X Large)
  2. with principal storage device mounted as /mnt
  3. no data loss in /mnt directory during launch of an instance

Thanks for replying,

  • micro instances don't have instance-store, so how are you planning on fulfilling #1? – ceejayoz Mar 26 '13 at 14:46
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Instead of using instance-store for this volume, instead create a second EBS volume, attach it to your EC2 instance, and mount it under /mnt.

Then the AMI that is created will include that volume's data. Any EC2 instances created from this AMI will have 2 volumes attached: the primary boot volume, and a second storage volume.

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