Ubuntu 15.10 is using lightdm desktop manager. man lightdm says that it is using /etc/lightdm/lightdm.conf for configuration. Ubuntu 15.10 does not include such a file. To disable the guest session create the file (/etc/lightdm/lightdm.conf) with following content:
First make sure you have the latest version and an actual kernel running. Execute theses commands as root:
Then install docker with the following lines as root:
apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo "deb https://apt.dockerproject.org/repo ubuntu-precise main" > /etc/apt/sources.list.d/docker.list
apt-get purge lxc-docker*
apt-cache policy docker-engine
apt-get install docker-engine
After this docker should be up and running. Rry using “docker ps” as root or with sudo.
To disable the guest account simply change the file /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf and add the last line:
Don’t forget that you have to restart lightdm before changes take effect.
First install needed packages:
sudo apt-get install qemu-kvm libvirt-bin bridge-utils
And configure a network bridge in /etc/network/interfaces. Here is my complete file:
iface lo inet loopback
iface eth0 inet manual
iface br0 inet dhcp
Just add the following lines to /etc/ntp.conf and restart ntp:
interface ignore wildcard
interface listen 127.0.0.1
interface listen ::1
In the newer versions of chromium browser the flashplugin-installer that works for firefox is not supported anymore. To get flash installed use:
apt-get install pepperflashplugin-nonfree
I got a new mainboard with Realtek ALC1150 onboard sound. First I was thinking it doesn’t work, but it only was very silent. Here is how to fix this:
sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily
sudo apt-get update
sudo apt-get install oem-audio-hda-daily-dkms
To install java and have it updated automatically just use the WebUpd8 PPA.
sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
After that you have java 8 installed and it is updated regularly.
After every installation of Ubuntu I try to get the GNOME 2 behavior back. This is very annoying and costs lot of time and research. Last months I tried xubuntu and xfce4. Both are very annoying and no real solutions for a productive desktop solution.
I haven’t used KDE for years because I always preferred GNOME. But yesterday I gave it a try and installed it by using the command:
sudo apt-get install kubuntu-desktop kdm
As you see I also replaced the broken lightdm desktop manager which really looked ugly in my multiscreen setup. After a reboot kdm started like a charm. I chose KDE Plasma session and logged in. After a few minutes of configuration everything looked really usable and worked out of the box. At least I can work with a default setup without hours of customizing. KDE you got a new fan!
Here my command to remove the old xfce and xubuntu stuff:
sudo apt-get autoremove --purge xfce* xubuntu* lightdm
Of course I’m NOT responsible if you break your installation by using the commands I posted here. I can only say “worked for me” 😉
In the latest ubuntu version (14.04) my keyboard layout changes regularly and I couldn’t figure out why. But a workaround to change it back is to use the following command: