Trouble downloading updates due to “Hash sum mismatch” error
Every time after I run Software Updates, and have installed all the updates, the Software Updates Manager will show
"The last check for updates was over a week ago. Please click Check for Updates to check."
But the last update check was just minutes ago. How can I fix that?
I checked the package history, and under
Today there's all the updates I've installed minutes age. It seems normal. And the system date and time are correct.
I am using Kubuntu Desktop 12.04 x86-64 btw.
sudo apt-get update
W: Failed to fetch bzip2:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_source_Sources Hash Sum mismatch W: Failed to fetch bzip2:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_binary-amd64_Packages Hash Sum mismatch W: Failed to fetch bzip2:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_binary-i386_Packages Hash Sum mismatch W: Failed to fetch bzip2:/var/lib/apt/lists/partial/security.ubuntu.com_ubuntu_dists_precise-security_main_source_Sources Hash Sum mismatch E: Some index files failed to download. They have been ignored, or old ones used instead.