Need an explaination of mount command flags

[ghodawalaaman]

Hello,

I followed the Gentoo handbook and stuck at this section: https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Base#Mounting_the_necessary_filesystems

handbook explains what does /proc , /sys and /dev is for however it doesn't explain why we pass --bind and --make-slave flags. I looked into man page of mount which explain *what* that flags do but it doesn't explain *why*.

imo there should be a good explanation of what/why of the flags, I have asked it in IRC, the dev said, "wiki is already too verbose and we should not add explanation of each and every command in the handbook". asking here to get some feedback and suggestion.

Thanks in advance!

[Zucca]

• --bind needs to be used because just symlinking mounts won't work when entered a chroot. Afaik --bind is the same as passing -o bind.
  
• --make-slave on the other hand makes sure the changes you make in the chroot won't propagate into parent root (outside of chroot), so that you can't accidentally mess up the live environment.

There may be other reasons, but that's how I see it.
_________________
..: Zucca :..

[powerN00b]

Don't tell newcomers about arch-chroot script

[Banana]

[ghodawalaaman]

@Zucca Thank you for the explanation, however I still think that it should be added to the handbook.

[pingtoo]

A handbook's purpose isn't to teach concepts but to guide users through specific processes. It focuses on clear procedures, anticipated outcomes, and troubleshooting steps. Detailing the reasoning behind each action and defining every option would make the handbook lengthy, tedious, and more like a lecture than a practical guide for task completion.

So I respectfully disagree on adding them into handbook.

[kimchi_sg]