Monthly Archives: July 2015

W: GPG error: http://linuxcnc.org lucid Release: The following signatures couldn’t be verified because the public key is not available.

While updating with command $sudo apt-get update I got warning, W: GPG error: http://archive.canonical.com jaunty Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ************* This means you have lost the signing key, or never … Continue reading

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“sha256sum mismatch jdk-7u3-linux-x64.tar.gz ” error when trying to install Oracle Java

When I tried to install Oracle Java with command $sudo apt-get install oracle-java7-installer I got error … .. Download done. sha256sum mismatch jdk-7u3-linux-x64.tar.gz Oracle JDK 7 is NOT installed. dpkg: error processing oracle-java7-installer (–configure): subprocess installed post-installation script returned error … Continue reading

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Installation Oracle JDK-7 on Linux

Whenever you need to install java, do prefer the Oracle JDk rather than the OpenJDK, because Oracle JDK has more advance features support. $sudo add-apt-repository ppa:webupd8team/java $sudo apt-get update $sudo apt-get install oracle-java7-installer Check version of Java: $java -version java … Continue reading

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Reliance Dongle on Ubuntu

Today I got a big relief as I was getting problem with Reliance Dongle from long ago. Problem was, I was unable to check my Data usage. There is no service provide by Reliance vendors for Linux users to check … Continue reading

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