Importance ISO image verification and creating bootable USB pen drive
What is the importance of checking the downloaded ISO image?
The ISO image of a GNU/Linux Distribution is a huge file, if it gets corrupted during the download or while copying from some place, your whole installation could go bad.
How this check is performed?
The check is performed by verifying the HASH value of the file downloaded against the original hash value provided by the author.
What is the process of writing it to a USB drive?
The ISO image is a file that is supposed to be written to a CD/DVD, this cannot be directly written to a USB pen drive, special process and software is required to do so. These programs write the image properly on to the USB thus you are able to boot from the same and proceed with install.
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