Tag Archives: AMI

Testing Bootable EBS with different AKI and ARI

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The release of AWS share EBS snapshots
How to Boot EC2 Instances from EBS
Cool Things You can do with Shared EBS
Hidden Dangers in Creating Public EBS Snapshots on EC2
Making an AMI use EBS to load the system files

Using the references above I tried to test Bootable EBS volumes, I’ve made some experiments (duh) to test bootable EBS volumes base on Alestic AMIs:
Ubuntu Hardy(ami-e546a78c)
Debian Lenny AMI(ami-ff46a796)

Note that both of these AMI’s are using the same AKI (aki-a71cf9ce) and ARI (ari-a51cf9cc). Therefore the two boot EBS volumes created has this properties. To create the Lenny and Hardy bootable EBS volumes, I simply follow Shlomo’s How to Boot EC2 Instances from EBS tutorial.

The first boot AMI is based on Alestic Ubuntu Hardy(ami-e546a78c) where the device used was set to /dev/sdj instead of /dev/sdp in Shlomo’s tutorial.

It was able to boot and I can successfully connect using SSH to these two instances without problems.

Here are the output of using two different EBS volumes:

Debian Lenny bootable EBS Output using boot AMI based on Alestic Hardy(ami-e546a78c)

EXT3 FS on sda1, internal journal
Making pivot_root device node /new-root-dev
Attempting to mount pivot_root volume on /new-root-dev
1 scsi_mod: no version for "struct_module" found: kernel tainted.
SCSI subsystem initialized
register_blkdev: cannot get major 8 for sd
mount: /new-root-dev is not a valid block device
2 mount: /new-root-dev is not a valid block device
3 mount: /new-root-dev is not a valid block device
4 mount: /new-root-dev is not a valid block device
5 mount: /new-root-dev is not a valid block device
6 mount: /new-root-dev is not a valid block device
7 mount: /new-root-dev is not a valid block device
8 mount: /new-root-dev is not a valid block device
9 mount: /new-root-dev is not a valid block device
10 mount: /new-root-dev is not a valid block device
 sdj: unknown partition table
11 kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Mounted pivot_root volume.
Mount failed for selinuxfs on /selinux:  No such file or directory
INIT: version 2.86 booting
/proc is empty (not mounted ?)
hostname: the specified hostname is invalid
Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...input: PC Speaker as /class/input/input1
done.

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Amazon AMI Cloner using SmartGWT and Grails

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As what I have posted earlier this month about the Amazon EC2 AMI cloner/migrator. Where it can launch and bundle a new AMI to another EC2 account, here comes it’s basic web interface :).

I’m no expert in Ajax and just luckily found Gooogle Web Toolkit(GWT) and finally the SmartGWT for this application. See sample screen shots using SmartGWT application. A Grails service works to fetch the AMI list, using the same cloner codes. The service generates a page with JSON string which can easily be use for SmartGWT datasource. I’ve learned that for me it’s much easier to get the web interface using SmartGWT and build the services inside grails. So far, I’m having fun and while keeping myself on the edge of these technologies.