Drew Withers

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Good Charlotte - Good Charlotte
Good Charlotte - Good Morning Revival
The All-American Rejects - Move Along


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Mission: Impossible
Edited on Saturday, December 27, 2008 @ 12:02 pm

How to fix the Ubuntu GPG Error BADSIG

Occasionally I have run into a problem in Ubuntu where I run apt-get update and receive the following error:

W: GPG error: http://archive.canonical.com intrepid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

This can be corrected by the following commands:
Code:
# sudo -i
# apt-get clean
# cd /var/lib/apt
# mv lists lists.old
# mkdir -p lists/partial
# apt-get clean
# apt-get update

rdiff-backup for simple but powerful backup

Ever since I got my new external 750GB hard drive I've been looking for a good way to use it for backing up my laptop. At first I was doing some basic backups using tar with some bash scripting for file rotation and then I would occasionally use partimage to get a whole image of the drive in case I ever needed to do a full restore. Then I was told about rdiff-backup.

This program is great. It maintains a mirror image of whatever you tell it to, and does incremental backups using a diff system so that it only backs up the portion of the file that has changed. So it doesn't fill up your drive any faster than it has to. It has a great restore feature and even works over ssh so you can backup remotely.
Edited on Wednesday, November 19, 2008 @ 10:27 am