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View Full Version : [ubuntu] can I Uninstall all updates that I have done on ubuntu 9.04 ?



anoop.singh.knit
August 12th, 2009, 02:45 PM
After I am unable to download any software and it is giving following error.
please tell what this error means and how could I correct it.This happened After installing updates .Not all updates were install some are still remaining .
Thanks ....



W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://security.ubuntu.com jaunty-security Release: The following signatures were invalid: NODATA 1 NODATA 2


W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://archive.canonical.com jaunty Release: The following signatures were invalid: NODATA 1 NODATA 2

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://in.archive.ubuntu.com jaunty Release: The following signatures were invalid: NODATA 1 NODATA 2

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://in.archive.ubuntu.com jaunty-updates Release: The following signatures were invalid: NODATA 1 NODATA 2

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://in.archive.ubuntu.com jaunty-backports Release: The following signatures were invalid: NODATA 1 NODATA 2

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://in.archive.ubuntu.com jaunty-proposed Release: The following signatures were invalid: NODATA 1 NODATA 2

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/jaunty/Release W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/jaunty-security/Release W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/jaunty-updates/Release

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/jaunty-backports/Release W: Failed to fetch http://archive.canonical.com/ubuntu/dists/jaunty/Release W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/jaunty-proposed/Release
W: Some index files failed to download, they have been ignored, or old ones used instead.

raymondh
August 12th, 2009, 02:50 PM
Try changing the server source and then run update again. See if it downloads.