Possible Duplicate:
Trouble downloading updates due to “Hash sum mismatch” error
A number of times recently over the last few months when I try and apt-get update & apt-get dist-upgrade I get the following error while apt is downloading a package...
Failed to fetch http://foo/bar.deb Hash Sum mismatch
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Upon getting this error I rerun upgrade immediately and it will usually progress until another package with the same error. After rerunning upgrade a few times everything completes successfully.
The errors occur with multiple different package sites including the official ubuntu ones. I haven't had any problems with my Internet connection or wget otherwise.
