Today we will learn Learn How to reboot Ubuntu. You were tired of windows! All right; We all get tired sometimes. Now you are using a Linux-based operating system like Ubuntu and you don’t know how to reboot your device. Linux-based operating systems do not require frequent reboots like Windows. However, there are times when you will need to reboot Ubuntu. If you are in one of these situations, then this article is for you! Stay with us and follow our step-by-step guide to solve your problem.
Why do we have to reboot Ubuntu?
As we mentioned earlier, operating systems like Ubuntu do not require a scheduled reboot. That said, there are times when rebooting will be your only option. Before we get into our guide let’s talk about these special times.
Kernel Panic
A kernel panic is an error from which your device’s operating system (OS) cannot recover quickly or easily. A kernel panic occurs when a low-level error occurs and the operating system’s kernel cannot repair it. The whole idea is not bad! Your operating system uses a kernel panic to notify users of a problem and prevent further problems. During a kernel panic, the operating system writes the contents of kernel memory to disk, commonly known as a kernel dump. This stops all CPU activity. The operating system either automatically reboots or waits for the user to manually reboot to resume operations.
Resizing the root partition
You may want to resize your root partition on your Ubuntu-powered device for any number of reasons. There are several methods for resizing your root partition; We will not discuss them in this article. Note that regardless of the method you choose, you will always have to reboot Ubuntu.
Kernel Updates or Security patches
If you’re using a Linux distribution like Ubuntu, you’re also using the Linux kernel, which makes your OS a Linux-based one. For those unfamiliar with these terms, Windows has the kernel that its operating systems use, but Linux is more widely discussed because it is more modular because can do a lot more with it. For example, you can take the kernel, patch it with several fixes, change other settings, remove what you don’t need, and then replace your original kernel with your finished product. This should work fine (assuming it’s done correctly).
What makes Linux great is the ability to easily replace one component with another without any problems. But the kernel update process, manual or automatic, must be rebooted afterward.
Unresponsive system
This problem is more common among users. Your device can sometimes become slow or unresponsive due to some component malfunction. The first and most effective solution is to reboot Ubuntu and see if that fixes the problem.
CPU Overheating
Another problem with most devices is overheating in certain situations. Although this is a common problem, most people leave their device until it cools down, when their best option is to reboot the entire system.
Rebooting your device will close all apps and background tasks to give your device enough space to cool down.
Let us start to see how we can reboot Ubuntu.
Now that we know which issues can be fixed with an easy reboot, we can dive into our step-by-step guide. We will cover all the available options from simple to more complex.
Use reboot button
The reboot button is definitely the easiest and fastest way to reboot Ubuntu. The ‘Power Off/Log Out’ option can be found by clicking on the top right corner of your Ubuntu-powered device.
Click on this option and at the end of the list find the Power Off option. By clicking Power Off, a new window will pop up. There are three options in this window. Select Restart and confirm the process.
You can open this power options window by typing ‘reboot’ in the GNOME search bar. Another option’s to press the Power button, which will open the Power Off window. However, note that this may require adjusting the power button functionality from within System Settings first!
Use reboot command
The reboot command is the fastest and easiest way to reboot a machine from the terminal. To reboot Ubuntu, type the following command:
$reboot
Believe it or not, this command is a shortcut to ‘shutdown -re now’!
Use the shutdown command to reboot
The shutdown command can shut down, shut down, or restart a computer. It specifies the time of execution with a time parameter. For immediate operation, the time input is ‘now’. For example, to restart a system immediately, use the ‘-r’ flag in conjunction with the ‘now’ string:
$ sudo shutdown -r now
If you want to schedule your reboot, you need to modify the above command and a time parameter:
$ sudo shutdown -r 5
Note that the time format is hours: minutes on a 24-hour clock. We can use ‘+m’ to restart the computer in ‘m’ minutes.
Use ‘Init’ in the command
When the kernel is loaded on Linux-based operating systems, the command ‘/sbin/init’ is the first process to be executed, indicating that the process has PID 1.
On Linux systems except ‘systemd’, the ‘init’ command stops all active processes and then synchronizes the disks before changing the init state or run level. The default run level is level 5. The ‘init 6’ command shuts down the running system and restarts it in the state specified in ‘/etc/inittab’. So, use the following command to restart:
$ sudo init 6
If you want to reboot Linux Ubuntu in a multi-user mode, you can use the command below:
$ sudo init 2
Use ‘SYSTEMD’ command
Nowadays that ‘Systemd’ has replaced the init process, ‘/sbin/init’ is just a symbolic link to systemd. That’s why you can’t detect ‘/etc/inittab’ on systems that use systemd instead of init. In such situations, run the following command to restart the system:
$ sudo systemctl reboot
Systemd, like the SysV init system, uses the so-called “target” mechanism. The ‘systemctl’ command mentioned above is the main interface to systemd. “reboot.target” in systemd corresponds to system runlevel 6 in SysV init. Consequently, the reboot command above can be used:
$ sudo systemctl isolate rescue.target
Conclusion
We have learned about many methods to reboot the Ubuntu system in this article. Note that all commands are basically the same for other Linux distributions, so this tutorial can be used for them as well. Buy VPS from Oudel Inc,
