I'm trying to create an image of my ec2 instance in Amazon's cloud. It's been a bit of an adventure so far. I did manage to install Amazon's ec2-api-tools, which was harder than it seemed like it should have been. Then I ran:

 ec2-bundle-vol -d /mnt -k pk-{key}.pem -c cert-{cert}.pem -u {uid} -s 1536

Which returned:

Copying / into the image file /mnt/image... Excluding:

    /sys/kernel/debug
    /sys/kernel/security
    /sys
    /proc
    /dev/pts
    /dev
    /dev
    /media
    /mnt
    /proc
     /sys
     /etc/udev/rules.d/70-persistent-net.rules
     /etc/udev/rules.d/z25_persistent-net.rules
     /mnt/image
    /mnt/img-mnt
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.00677357 s, 155 MB/s
mkfs.ext3: option requires an argument -- 'L'
Usage: mkfs.ext3 [-c|-l filename] [-b block-size] [-f fragment-size]
        [-i bytes-per-inode] [-I inode-size] [-J journal-options]
        [-G meta group size] [-N number-of-inodes]
        [-m reserved-blocks-percentage] [-o creator-os]
        [-g blocks-per-group] [-L volume-label] [-M last-mounted-directory]
        [-O feature[,...]] [-r fs-revision] [-E extended-option[,...]]
        [-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]
ERROR: execution failed: "mkfs.ext3 -F /mnt/image -U 1c001580-9118-4a50-9a25-dcf02be6d25f -L "

So mkfs.ext3 wants -L, which is a volume name. But ec2-bundle-vol doesn't seem to take in a volume name as an argument, and the docs (http://docs.amazonwebservices.com/AmazonEC2/gsg/2006-06-26/creating-an-image.html) don't seem to think one should be needed. Certainly their sample command:

# ec2-bundle-vol -d /mnt -k ~root/pk-HKZYKTAIG2ECMXYIBH3HXV4ZBZQ55CLO.pem -u 495219933132 -s 1536

doesn't specify anything.

So... any help? What am I missing?