If you are running Ubuntu Linux on a laptop, there are a few different ways that you can monitor the battery life of your system. Ubuntu makes this easy to do in the default GNOME desktop environment, but it is also possible to check the battery life from command line. In this tutorial, you will learn several methods to check the battery life on Ubuntu.
Setting your keyboard layout should be one of the first things users do when installing or setting up their Linux system. Every system will come with a slew of preconfigured layouts for various languages or preferences. But what if you want to take it a step further and modify a layout to your liking?
Most of the non-SSD hard drives allow for a noise reduction by decreasing head movement speed while accessing data. This ability is called Automatic Acoustic Management or AAM. In this tutorial, you will see how to install the
hdparm software package on all major Linux distros and use it to manipulate AAM values to reduce or increase head movement, thus directly affect hard drive’s noise level.
Knowing the architecture of your system’s processor is essential when picking an operating system to download and install. Certain editions of Linux and other operating systems are typically only made to work with a certain architecture, whether that be x86 (32 bit), x86-64 (64 bit), ARM (in the case of Raspberry Pi systems), etc. Furthermore, software that you are interested in running may only be designed to work with a particular architecture.
Depending on your server room conditions it may be important to be informed about the hard drive temperatures inside of your servers. System administrators may use Bash and cron to write a simple script that can alert them about sudden temperature change. Various command line tools such as
hddtemp can check your HDD temperature and be used inside of a Bash script.
The partition table of a hard disk holds all the information about where each partition begins and ends. If the partition table gets deleted or becomes corrupt in some way, most likely your operating system will not be able to boot or you will face other hard disk issues. But there is good news: if your partition table is lost, it is possible to recover it using software such as testdisk.
Computer memory is allocated to processes as pages. Usually these pages are rather small, meaning that a process consuming a lot of memory will also be consuming a lot of pages. Searching through a multitude of pages can result in system slow downs, which is why some servers can benefit from enabling huge pages.