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Old 05-14-2016, 07:24 AM   #1
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require verification of my understanding of the linux boot process

Is my understanding of the linux boot process correct as per the attached picture?

if the grub configuration files are in /boot, then doesn't the grub process have to understand the filesystem that /boot resides in? At what point does grub become 'filesystem' aware?
Old 05-14-2016, 07:36 AM   #2
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Good question. To make the coaching shortened and accurate see the below tutorials.

The best answer is here. That explains the workings of Grub 2 and how are the files apportioned to different folders. If you have question also about Grub Legacy (the 1st version) here is a tutorial explaining it too.

Hope that helps.

Good luck.

Old 05-14-2016, 09:55 AM   #3
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The "Linux" boot process has nothing to do with grub. Grub is a "stand-alone" loader - the Linux boot sequence is subsequent to grub/lilo/whatever.
What you show is very much how grub legacy worked. As for the fiesystem support, it has to be coded in - for grub legacy it was hard-coded, as was evident when the ext[34] change in inode size broke grub. This was part of the reason grub2 was written to allow modules to be loaded so new functionality could be (relatively) easily added.


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