Possible Duplicate:
Trouble downloading updates due to “Hash sum mismatch” error
I am using ec2 Ubuntu instances now for some time and never had a problem with. Today I created a new Ubuntu 12.04 LTS Precise EBS boot on US-east-1, seems to be a bad build.
While doing a sudo apt-get update it breaks and says:
W: Failed to fetch bzip2:/var/lib/apt/lists/partial/us-east-1.ec2.archive.ubuntu.com_ubuntu_dists_precise-updates_main_source_Sources
Hash Sum mismatch
This is on a fresh instance. So I reckon something went wrong when creating it. What can be done to fix it?

ami-9c78c0f5seems broken. Thanks – Kave Oct 31 '12 at 0:00