Today I tried to fix an old issue with an old laptop having dual boot - windows / ubuntu. This issue occurred one day out of nowhere (someone from forums said it was caused by a windows update). While the windows system still boots, the laptop cannot boot into ubuntu and always gets stuck at a grub rescue shell with an error: file /boot/grub/x86_64-efi/normal.mod not found The following steps helped me to boot into linux:

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This post is a revised version of link. The following steps should be followed: Edit the file /etc/dnsmasq.conf on your router, and update the mac address associated with the intended ip address. dhcp-host=<mac address>,<ip address> Stop dnsmasq service sudo systemctl stop dnsmasq.service Next shutdown networking on the new client machine or the command dhclient -v -r might get the job done. Be aware, that this step will make the client lose the connection.

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Here are the steps for configuring a DHCP server in a local network. Set static IP to the second network card enp9s3 (this name can be different on a different PC) on the DHCP server PC. Run sudo vi /etc/network/interfaces Edit the file according to this sample: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback # The other network interface auto eno123 iface eno123 inet dhcp # DHCP server interface auto enp9s3 iface enp9s3 inet static address 15.

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Disable WIFI and plug in an internet cable to your laptop so that your Ubuntu is connect to a wired internet and wireless is disabled. Go to Network Icon on top panel -> Edit Connections …, then click the “Add” button in the pop-up window. Choose Wi-Fi from the drop-down menu when you’re asked to choose a connection type: In next window, do: Type in a connection name. (This name will be used later) Type in a SSID Select mode: Infrastructure Device MAC address: select your wireless card from drop-down menu.

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The following steps are needed for Kinect to work properly in Ubuntu 14.04. Prerequisites OpenNI Kinect Sensor Module Possible user group tuning Prerequisites The necessary packages: $ sudo apt-get install git build-essential python libusb-1.0-0-dev freeglut3-dev openjdk-7-jdk Optional: sudo apt-get install doxygen graphviz mono-complete OpenNI Check out from git: git clone https://github.com/OpenNI/OpenNI.git Compilation: cd OpenNi cd Platform/Linux/CreateRedist chmod +x RedistMaker ./RedistMaker Installation: cd .

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I tried it many times and finally installed CUDA 7.5 on my laptop (Nvidia GeForce 750M) with optimus. It was very tricky but these steps worked for me. Step 1: Switch to kubuntu. (Some other linux desktop should also work, e.g. lubuntu, mate) According to this tutorial, both Ubuntu Unity and Gnome3 desktops were very susceptible to black-screen states and/or corrupted workspaces. KDE didn’t seem to suffer from these problems. Following commands can help you to do the switch:

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