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Showing posts from July, 2019

My RHCSA certificate

Hi every one.

    I created this post last week before my RHCSA exam. Firstly i want write how i become RHCSA. I got some certificates including sport related certificates. My first certificate was CCNA for geting this it took for me about 3 years. Last year of my bachelour degree i began interesting in networking. Of course why , because i fill in lov ewith command promt. From networking it took me to the world of open source . First distro i installed on my pc was Ubuntu . I still you Ubuntu. Beacuse it has most friendly interface. From that time firstly i interested in LPIC certificates which one i got last year. While passing my CompTIA Linux+. Be honestly i made mistake getting this certificate. Itself its not bad cert . While preparing this certificate you learn a lot. Also i read Sanders RHEL cert guide. Which helped me a lot passing my RHCSA.
     Let's talk about exam day. Whole night i was unable sleep. In my dreams i only see "lvreduce" command. Which was my n…

Linux Boot

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     In this article, I am going to explain the booting process in detail. I can assure you that, you will get a clear idea about the Linux booting process after reading this post. I would like to divide the Linux booting in the following 5 steps: From power up/reset to login prompt, we can mainly divide the Linux booting process in to five areas. The BIOS, Stage I boot loader, Stage II boot loader, Kernel and Init. These are the important areas behind a booting process. Let us start the Linux booting process with BIOS. Step 1. BIOS (Basic Input Output System) POST-power on self test which bios loads  checking for hardware .
Step 2. Stage 1 boot loader (MBR)Master Boot Record, is the first place where boot loaders begins to start. MBR is a 512 byte sector located in the first sector of hard disk. MBR contains both program code and partition table details. Please see the image added below: When allocating disk space for a partition, the first sector or data unit for each partition i…