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While running the sudo apt-get update on ubuntu 17.04 Zesty Zapus, I am getting the following error. I have posted on the error lines. I wanted to install python libraries like matplotlib and tkinter which failed to installed because above command wasn't running succesfully. Please suggest me what to do.
Err:9 http://security.ubuntu.com/ubuntu zesty-security/main amd64 Packages
404 Not Found [IP: 2001:67c:1560:8001::14 80]
Err:25 http://in.archive.ubuntu.com/ubuntu zesty/main i386 Packages
404 Not Found [IP: 2001:67c:1360:8001::21 80]
Err:81 http://in.archive.ubuntu.com/ubuntu zesty-updates/main amd64 Packages
404 Not Found [IP: 2001:67c:1360:8001::21 80]
Err:113 http://in.archive.ubuntu.com/ubuntu zesty-backports/main amd64 Packages
404 Not Found [IP: 2001:67c:1360:8001::21 80]
Reading package lists... Done
W: The repository 'http://security.ubuntu.com/ubuntu zesty-security Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://in.archive.ubuntu.com/ubuntu zesty Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://in.archive.ubuntu.com/ubuntu zesty-updates Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://in.archive.ubuntu.com/ubuntu zesty-backports Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/zesty-security/main/binary-amd64/Packages 404 Not Found [IP: 2001:67c:1560:8001::14 80]
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/zesty/main/binary-i386/Packages 404 Not Found [IP: 2001:67c:1360:8001::21 80]
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/zesty-updates/main/binary-amd64/Packages 404 Not Found [IP: 2001:67c:1360:8001::21 80]
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/zesty-backports/main/binary-amd64/Packages 404 Not Found [IP: 2001:67c:1360:8001::21 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
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1) In the first step open the Terminal & type, apt-get update and then press the enter button. Now make sure you got a similar error as shown in the picture below. 2) Now open the app drawer & search “Software & Update”, now open the app from the search result. 3) Now go to the Ubuntu Software section.
Hash Sum Mismatch Error This error can happen when fetching the latest repositories during " apt-get update " was interrupted, and a subsequent " apt-get update " is not able to resume the interrupted fetch. In this case, remove the content in /var/lib/apt/lists before retrying " apt-get update ".
The sudo apt-get update command is used to download package information from all configured sources. The sources often defined in the /etc/apt/sources. list file and other files located in /etc/apt/sources.
Upgrading software with AptOpen a terminal and use the update command. The update command will update the list of available packages for your machine. 2. Run the upgrade command to download and install the latest software.
In my case:
sed -e 's/archive.ubuntu.com/old-releases.ubuntu.com/g' -i /etc/apt/sources.list
sed -e 's/security.ubuntu.com/old-releases.ubuntu.com/g' -i /etc/apt/sources.list
you can solve it by: just replace us.archive.ubuntu.com and security.ubuntu.com in /etc/apt/sources.list with old-releases.ubuntu.com and then you'll be able to finish updating.
refer to source 1 and ubuntu forum
it work for me
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