Thursday, January 4, 2024


 When I needed to reinstall an operating system to a computer, I used to have one USB stick per operating system. So with a collection of some Windows, Linux and anti-virus related operating systems I used to occupy several USB sticks.

Now I heard about Ventoy. Ventoy offers a tool that allows you to create a bootable USB stick which can host several operating system installation files (ISO's) on one USB stick. 

I now use it, and it works like a charm. The only limit is the amount of space on your USB-stick. 

Monday, December 4, 2023

How to find your Raspberry Pi in your network

Last week - with some struggle - I updated my Raspberry from Buster to Bullseye.

After I succeeded to complete the update, I had to reboot the Raspberry and was unable to reconnect to it with the known IP-address.

The trick I then used was to ping the hostname, only to find out that my Raspberry was using an IP 6 IP-address.

I disabled IP6 by editing the /etc/sysctl.conf file. I added these three lines;
  • net.ipv6.conf.all.disable_ipv6 = 1
  • net.ipv6.conf.default.disable_ipv6 = 1
  • net.ipv6.conf.lo.disable_ipv6 = 1
And reboot.

Then when I wanted to access my Raspberry I still was not able to use the known IP-address. Ping-ing the Raspberry showed that it was using a IP4 address, but not the required static one.
With ifconfig I saw that the network interface was given a new name. In /etc/dhcpcd.conf I entered the same name to the network interface and finaly I got my static IP-address working again.

Saturday, December 2, 2023

Unable to upgrade after update to Bullseye

 I updated my Raspberry Pi from Buster to Bullseye. In my previous blog you could read that I had some issues starting Pi-hole ater the update.

I noticed that I also could not upgrade Raspberry OS completely. 

After a lot of Google-ing I found this post what was a working solution for me. LINK 

Wednesday, November 29, 2023

Pi-hole stopped working efter update to Bullseye

Yesterday I updated my Raspberry Pi to version 11 (Bullseye). The main usage for my Raspberry Pi is Pi-hole; a network-wide ad-blocker.

But that stopped working and could not be started because of the following error; "FTL failed to start due to failed to create listening socket for port 53: Address already in use".
With the command
sudo netstat -nltup | grep 'Proto\|:53 \|:67 \|:80 \|:471'
I figured out that a system component of Raspberry OS version 11 was bind to port 11; connmand.

Since that system component is optional, you can easily uninstall it with
sudo apt purge connman

After a reboot I was able to start my pi-hole again and could FTL (from Pi-hole) use port 53 again. 

Friday, August 11, 2023

Link 'Check online for updates from Microsoft Update' missing

 When your computer is part of a domain, you sometimes have to check online at Microsoft for the latest updates. Windows Update offers a link to do so.

But sometimes this link is missing. The reason could be this register setting;
'DoNotConnectToWindowsUpdateInternetLocations' in 
If that setting is set to 00000001 (True) it will not show the link. Alter it to 000000 (False) and the link will be shown.