Auto Mounting EBS on EC2

I assume that you have already created a EC2 instance (On top of your custom AMI),  EBS volume (both in the same availability zone) . Below are some instructions to automount EBS on EC2. 

AutoMount Init Script

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http://developer.amazonwebservices.com/connect/thread.jspa?threadID=25071&start=0&tstart=0

1)apt-get install sun-java6-jre sun-java6-bin sun-java6-source

2)cd /usr/local/src/

3)wget http://developer.amazonwebservices.com/connect/servlet/JiveServlet/download/30-25071-102530-2022/mountec2vol

4)wget http://s3.amazonaws.com/ec2-downloads/ec2-api-tools.zip

unzip ec2-api-tools.zip

5)edit mountec2vol

set JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.13/  or equivalent

set EC2_PRIVATE_KEY EC2_CERT

set EC2_HOME=/usr/local/src/ec2-api-tools-1.3-36506/

set VOL and DEV

6)cp mountec2vol /etc/init.d/

7)chmod +x /etc/init.d/mountec2vol

8)test  mountec2vol

/etc/init.d/mountec2vol start

/etc/init.d/mountec2vol stop

9)update-rc.d mountec2vol start 15 2 3 4 5 . start 47 S . start 35 0 1 6 .

10)Bundle the new image

ec2-bundle-vol -d /mnt -k /mnt/pk-balbal.pem -c /mnt/cert-balhbalh.pem -u userid  -r i386  -p automountingebs

11)upload the new image

ec2-upload-bundle  --url https://s3.amazonaws.com/subdir/ -b yourbucket  -m /mnt/automountingebs.xml -a accessid -s yoursecret

12)register image

ec2-register yourbucket /subdir/automountingebs.xml

Some additional info to create EBS 

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On local machine

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ec2-create-volume -z us-east-1c -s 10

ec2-describe-volumes vol-VVVV1111

ec2-attach-volume -d /dev/sdh -i i-IIII1111 vol-VVVV1111

On EC2 Instance

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apt-get install -y xfsprogs

modprobe xfs

mkfs.xfs /dev/sdh

echo "/dev/sdh /vol xfs noatime 0 0" >> /etc/fstab

mkdir /vol

mount /vol

http://developer.amazonwebservices.com/connect/entry.jspa?externalID=1663

AutoMount

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http://www.ioncannon.net/system-administration/199/automounting-amazon-ebs-volumes-on-ec2-instances/