System Internals

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The Differences Between UEFI And BIOS

BIOS and UEFI both are the firmware interfaces that act as an interpreter between the system’s firmware and operating system. A firmware interface initializes the hardware components while the startup

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Difference Between MBR And GPT

Large storage disks usually have logical partitions. An Operating System uses a partition table to identify the start address, filesystem information, and other details of a specific logical partition. The

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The Concept Of RAID

This post was last updated on August 3rd, 2020 at 01:50 pmOriginally the term RAID defined as “Redundant Array of Inexpensive Disks” but now it is referred to as “Redundant

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What’s an Operating system & why do we need one?

This post was last updated on October 14th, 2020 at 09:52 pmBasically an operating system (OS) is a software system (collection of interdependent software code) on its own that allows

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Basic Operating System Services: A beginner’s guide

This post was last updated on October 14th, 2020 at 09:52 pmOperating System Services are the basic functionalities or the responsibilities of an Operating System that it provides to the

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Static Routes in RH73 Linux

This post was last updated on June 3rd, 2020 at 04:36 pm(Other routing page: routes.html) Here’s how to set up Red Hat 7.3 /etc/sysconfig/static-routes file, I mention this here because

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Rsync and Linux

This post was last updated on July 9th, 2020 at 04:32 pmThis is how the rsync command works: cd /var/ftp/pub/rsync/; rsync -azvx dest_server::ftp . This is how to generate keys

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Linux Boot Process

This post was last updated on June 3rd, 2020 at 03:34 pmThe following is from /usr/src/linux-2.4/Documentation/initrd.txt When using initrd, the system typically boots as follows: 1) the boot loader loads

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Drivers in Linux

This post was last updated on May 26th, 2020 at 10:43 pm What to do with static drivers, module drivers, append=, and insmod. Drivers in Linux can take on two

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Using Here Documents in Linux

This post was last updated on June 3rd, 2020 at 04:38 pmcat <<EOF>/tmp/newfile This is the contents of the here document It can span multiple lines A here document says