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1. #Ubuntu 14.04.2 add noapic boot option how to#
2. #Ubuntu 14.04.2 add noapic boot option install#
3. #Ubuntu 14.04.2 add noapic boot option software#
4. #Ubuntu 14.04.2 add noapic boot option password#
5. #Ubuntu 14.04.2 add noapic boot option windows#

#Ubuntu 14.04.2 add noapic boot option windows#

When Windows Boot Manager is on the top, save it At this point, you should save this configuration. Once done, you should have Windows on the top of this list. In Grub Customizer, select Windows Boot Manager and then press the Up arrow on the menu to move it up the order You can use the arrow option from the top menu for this task. You can see that Windows lies at the bottom after so many Ubuntu options.Īll you have to do is to move Windows over the first Ubuntu. Enter your password.Īfter that, you’ll see a screen where you can access the configuration.

#Ubuntu 14.04.2 add noapic boot option password#

It requires the admin password because you are dealing with an important configuration that requires root privileges. Start for Grub Customizer in application menu Once installed, search for Grub Customizer in the menu and open it.

#Ubuntu 14.04.2 add noapic boot option install#

Sudo apt install grub-customizer Using Grub Customizer Open a terminal and use the following commands one by one: sudo add-apt-repository ppa:danielrichter2007/grub-customizer Installation instructions for Ubuntu 18.04įor Ubuntu 18.04 and Linux Mint 19 series, you’ll have to use PPA. Or, use the apt command to install the package in terminal: sudo apt install grub-customizer

#Ubuntu 14.04.2 add noapic boot option software#

This means that you can easily install it from the software center: Grub Customizer in Ubuntu Software Center Starting with Ubuntu 20.04, Grub Customizer is available in the Universe repository. Subscribe to our YouTube Channel for more Linux videos Install Grub Customizer in Ubuntu-based distributions In this tutorial, I’ll show you the graphical method to change the Grub boot order and make Windows default. The good news is that you can customize grub to your liking. You have to wait till the computer boots up and stay close to your computer to choose Windows for login. This grub behavior creates problem if you prefer to have Windows as your primary OS. A graphic illustration of grub screen in Ubuntu-Windows dual boot setup

At the boot time, on the grub screen, if you do not choose Windows for login within 10 seconds (default Grub timeout), it boots up into the Linux.

When you install Ubuntu or Linux Mint or elementary OS along with Windows in dual boot mode, Linux becomes the default OS. Some of them use Linux as their primary OS while some prefer Windows as their primary OS. Many people prefer to install Linux in dual boot mode with Windows.

#Ubuntu 14.04.2 add noapic boot option how to#

The following example disables both ACPI and APIC: kernel /vmlinuz-2.6.18-194.This tutorial shows you how to easily change grub boot order to make Windows as default OS in Windows-Linux dual boot with the help of Grub Customizer. Applying boot optionsīy default, both features are enabled in the kernel, and can be disabled with the respective boot options acpi=off and noapic as shown below.Įdit the kernel line and add the desired option. Disabling APIC removes the ability to make use of IRQ sharing or device IRQ remapping.

APICĪPIC stands for Advanced Programmable Interrupt Controller.ĪPIC is the replacement for the old PIC chip that, in the past, was embedded on motherboards and allowed the configuration of interrupts for peripherals like soundcards, IDE controllers, sharing/redirecting of interrupts. It will be necessary to press/hold the shutdown/reboot button of that server, power off via Out-of-Band management or use some other external device (e.g. The consequences are that when ACPI is off, the server will be unable to turn itself off, as the soft shutdown cannot work after executing poweroff or shutdown -h now. If the machine is randomly powering off or failing to boot, disabling ACPI may help. However, many hardware platforms ship with buggy or out-of-specification ACPI firmware which can cause any number of unspecified problems. This also comes from the hardware design. For example, a device cannot be running in full-power "behind" a device that is sleeping or in stand-by mode. Note: some machines are able to boot without using ACPIĪCPI power-saving features are hierarchical, meaning that any device running "behind" another will be dependent on the power state of the parent device. It is the system that describes hardware to the operating system to let understand what hardware is present and to properly configure it, controls hardware actions such as the dynamic speed fans, the power button behavior, system sleep states, optionally to control frequencies of CPUs and helps to identify some system capabilities.