I Am Still Learning Linux System

Below is just a reflection of what I’ve learned so far in my journey in learning Linux, which is a strange world to me. I am hoping I’d be an expert of Linux in a year or two.

The beginning of all Linux journeys originates with the humble bootloader the small bit of code that jump-starts the whole boot process. Knowing how to configure your bootloader is almost requisite for using a Linux system. You also need to understand the bootloader if you want to configure your system to boot more than one operating system.

Within the exciting bootloader world are a number of choices for starting your computer. For the latest machines, there are two main contenders: LILO and GRUB. If you are running Linux on a Mac, LILO and GRUB are not available, and the main bootloader is called yaboot. Another potential situation in which you might need to boot a computer is when you are trying to boot a CD to install an operating system. Sometimes you can encounter a problem booting from a CD if your computer’s BIOS does not support booting from CD-ROM or if your CD-ROM drive does not support booting from a CDR. You can resolve this problem with a tool called the Smart Boot Manager.

Without a doubt, GRUB is a far more flexible boot manager than LILO. It enables you to add new kernels or boot parameters without having to install each update to the Master Boot Record (MBR). GRUB also allows you to pass parameters to it or to the kernel at boot time. Many Linux distributions now ship with GRUB as the default bootloader. Although GRUB is reliable and flexible enough to recover from most disasters, it is still advisable to back up your boot sector just in case something goes wrong.