Mdthbs

How does Harry wear the invisibility cloak?

Can a country avoid prosecution for crimes against humanity by denying it happened?

Does POSIX guarantee the paths to any standard utilities?

How to describe hit point damage without talking about wounds

How to generate all 3×3 matrices with a,a,a,a,b,b,b,c,c？

'Hard work never hurt anyone' Why not 'hurts'?

Why did the Joi advertisement trigger K?

Spare the Dying during Rage Beyond Death

Has Rey's new lightsaber been seen before in canon or legends?

Do index funds really have double-digit percents annual return rates?

Was "The Hobbit" ever abridged?

co-son-in-law or co-brother

How does speed affect lift?

Importance of electrolytic capacitor size

Is Levitate supposed to basically disable a melee based enemy?

'This one' as a pronoun

Is there any difference between these two sentences? (Adverbs)

Do mortgage points get applied directly to the principal?

IEEE Registration Authority mac prefix

When making yogurt, why doesn't bad bacteria grow as well?

Which is the best password hashing algorithm in .NET Core?

Travel to USA with a stuffed puppet

Why don't they build airplanes from 3D printer plastic?

Would you recommend a keyboard for beginners with or without lights in keys for learning?

What is the purpose of bind mounting (rbind specifically) /sys?

Mount points in a chrootRecursive umount after rbind mountWhy doesn't mount respect the read only option for bind mounts?Trouble with understanding the concept of mountingbind mounting and df outputWhat is a bind mount?umount /dev: Invalid argumentWhy are these mounts needed before updating initramfs?User and Group permissions for mnt folder and files access in CentOS 7bind mounting source to itself

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

0

I was going through the Gentoo Handbook in preparation for installing Gentoo on my system.

In the Chrooting section, these commands are given:

mount --rbind /sys /mnt/gentoo/sys

mount --make-rslave /mnt/gentoo/sys

mount --rbind /dev /mnt/gentoo/dev

mount --make-rslave /mnt/gentoo/dev

These are the doubts I have regarding this section:

1. 
   

   I'm no Linux expert but based on a little digging I did, I found out that a bind mount

   
   
   

   
   

   takes an existing directory tree and replicates it under a different point. The directories and files in the bind mount are the same as the original. Any modification on one side is immediately reflected on the other side, since the two views show the same data.

   
   

   
   
   

   What I don't understand is, how does making a bind mount in /mnt/gentoo/sys help? The original directory tree is in the installation medium which will be removed. So any changes made in the medium will not be reflected here. What is the purpose of using this command instead of

   
   
   

   mount -t sysfs sysfs /mnt/gentoo/sys 
   
   

   
   



2. What is the purpose of using rbind? Assuming that the purpose of the bind mounting was only to create a /sys file on the /mnt/gentoo and not make use of bind mount's reflective feature, why use of rbind? Again, as far as I know, rbind is used when there are mount points under the original directory being bind mounted. But there aren't any mount points under /sys are there?

filesystems mount gentoo bind-mount

share

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

I was going through the Gentoo Handbook in preparation for installing Gentoo on my system.

In the Chrooting section, these commands are given:

mount --rbind /sys /mnt/gentoo/sys

mount --make-rslave /mnt/gentoo/sys

mount --rbind /dev /mnt/gentoo/dev

mount --make-rslave /mnt/gentoo/dev

These are the doubts I have regarding this section:

1. 
   

   I'm no Linux expert but based on a little digging I did, I found out that a bind mount

   
   
   

   
   

   takes an existing directory tree and replicates it under a different point. The directories and files in the bind mount are the same as the original. Any modification on one side is immediately reflected on the other side, since the two views show the same data.

   
   

   
   
   

   What I don't understand is, how does making a bind mount in /mnt/gentoo/sys help? The original directory tree is in the installation medium which will be removed. So any changes made in the medium will not be reflected here. What is the purpose of using this command instead of

   
   
   

   mount -t sysfs sysfs /mnt/gentoo/sys 
   
   

   
   



2. What is the purpose of using rbind? Assuming that the purpose of the bind mounting was only to create a /sys file on the /mnt/gentoo and not make use of bind mount's reflective feature, why use of rbind? Again, as far as I know, rbind is used when there are mount points under the original directory being bind mounted. But there aren't any mount points under /sys are there?

filesystems mount gentoo bind-mount

share

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I was going through the Gentoo Handbook in preparation for installing Gentoo on my system.

In the Chrooting section, these commands are given:

mount --rbind /sys /mnt/gentoo/sys

mount --make-rslave /mnt/gentoo/sys

mount --rbind /dev /mnt/gentoo/dev

mount --make-rslave /mnt/gentoo/dev

These are the doubts I have regarding this section:

1. 
   

   I'm no Linux expert but based on a little digging I did, I found out that a bind mount

   
   
   

   
   

   takes an existing directory tree and replicates it under a different point. The directories and files in the bind mount are the same as the original. Any modification on one side is immediately reflected on the other side, since the two views show the same data.

   
   

   
   
   

   What I don't understand is, how does making a bind mount in /mnt/gentoo/sys help? The original directory tree is in the installation medium which will be removed. So any changes made in the medium will not be reflected here. What is the purpose of using this command instead of

   
   
   

   mount -t sysfs sysfs /mnt/gentoo/sys 
   
   

   
   



2. What is the purpose of using rbind? Assuming that the purpose of the bind mounting was only to create a /sys file on the /mnt/gentoo and not make use of bind mount's reflective feature, why use of rbind? Again, as far as I know, rbind is used when there are mount points under the original directory being bind mounted. But there aren't any mount points under /sys are there?

filesystems mount gentoo bind-mount

share

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

mount --rbind /sys /mnt/gentoo/sys

mount --make-rslave /mnt/gentoo/sys

mount --rbind /dev /mnt/gentoo/dev

mount --make-rslave /mnt/gentoo/dev

share

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

edited 3 mins ago

muru

44.5k55 gold badges111111 silver badges182182 bronze badges

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1

New contributor

Karthikeya Kaza is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 7 mins ago

Karthikeya KazaKarthikeya Kaza

1