Category: GNU/Linux@en

How to Solve NO_PUBKEY 85A3D26506C4AE2A

December 30, 2012 - 02:52 GNU/Linux no comments

If you add Mozilla repository  in debian Testing (mozilla.debian.net) it can happen that when we try to execute the comand apt-get update, we see a GPG error:

W: GPG error: http://mozilla.debian.net experimental Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 85A3D26506C4AE2A

To solve this problem we need to install the debian-keyring package

# apt-get install debian-keyring

and then execute this 2 commands:

# gpg --keyserver keys.gnupg.net --recv-key 06C4AE2A

# gpg -a --export 06C4AE2A | apt-key add -

Monitor the PC temperature

May 3, 2011 - 21:46 GNU/Linux no comments

This article will explain how to install lm-sensors and associated applet to control the temperature of your PC (hard disk, cpu, etc. …).

The installation begins by installing lm-sensors:
# apt-get install lm-sensors

after that we proceed to the installation of the applet:
# apt-get install sensors-applet

After installation of the sensors-applet, software will ask some questions:
start on boot (yes/no)
I suggest to select yes

Interface to listen on:
127.0.0.1
Leave as is.

Port to listen on:
7634
Leave as is.

Once you have completed the installation of sensors-applet do configuration of sensors:
# sensors-detect

All questions will be asked, answer yes (it need look for the sensors).
At question:

To load everything that is needed, add this to /etc/modules:

#—-cut here—-
# Chip drivers
coretemp
#—-cut here—-

If you have some drivers built into your kernel, the list above will
contain too many modules. Skip the appropriate ones!

Do you want to add these lines automatically to /etc/modules? (yes/NO)
I suggest to answer YES.

We're done. Now on the top panel of gnome panel, select Add and from the list select Hardware sensors monitor.

How to Solve NO_PUBKEY 07DC563D1F41B907

February 2, 2011 - 23:39 GNU/Linux 1 comment

If we add the repository http://www.debian-multimedia.org on Debian testing
it can happen that when we try to execute the comand apt-get update, we see a GPG error:

W: GPG error: http://www.debian-multimedia.org squeeze Release:
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907

To solve this problem we need to install the debian-keyring package

# apt-get install debian-keyring

And then execute this command:

# gpg --keyring /usr/share/keyrings/debian-keyring.gpg -a --export 07DC563D1F41B907 |apt-key add -

After that, when we try to execute apt-get update, there will be no the GPG error anymore.

Debian testing and vmware-tools

January 30, 2011 - 12:17 GNU/Linux no comments

I write these few lines because I believe that a simple guide on how to solve a little problem that occurs when you install vmware-tools on debian testing is a must.

may happen that during installation you get to the point where vmware-tools tell you that the path to the gcc (usr / bin / gcc) is invalid.

What to do at this point?
Simple: just install what is missing of course:

first stop the process of installing the vmware-tools and install gcc with this command:

# apt-get install gcc-4.3 linux-headers-$(uname-r)

right after you install the gcc, go back to the installation of vmware-tools and you’re done!