Building a Gentoo and Debian chroot Environment

If you’re wondering how to create a chroot environment in the first place while reading my previous post, then this post is for you.

Gentoo:

Download gentoo stage 3 installer

wget http://mirror.gentoo.gr.jp/releases/x86/2006.1/stages/stage3-i686-2006.1.tar.bz2

Create a chroot folder

mkdir chroot-gentoo

Extract it

sudo tar xvjf stage3-i686-2006.1.tar.bz2 -C chroot-gentoo

Mount proc and dev

sudo mount -o bind /dev chroot-gentoo/dev
sudo mount -o bind /proc chroot-gentoo/proc

And possibly some other directories too

sudo mount -bind /usr/portage chroot-gentoo/usr/portage

And that’s it, you can start chrooting now

sudo chroot chroot-gentoo /bin/bash

You might want to install some essential packages

emerge --sync
emerge vim 
Exit when you're done
exit
Dont forget to unmount what you have mounted
sudo umount chroot-gentoo/dev chroot-gentoo/proc chroot-gentoo/usr/portage

You can have a debian chroot system too

Install essential package

as root

echo "dev-util/debootstrap ~x86" >> /etc/portage/package.keywords
emerge debootstrap

Populate your chroot folder using debootstrap

debootstrap sid chroot-debian http://mirror.pacific.net.au/debian/

Mount proc and dev

sudo mount -o bind /dev chroot-debian/dev
sudo mount -o bind /proc chroot-debian/proc

Start chrooting now

sudo chroot chroot-debian /bin/bash

Install your favorite packages

apt-get update
apt-get install <list your package here>

Exit once done playing with the chroot environment

exit

Clean up some mess

sudo umount chroot-debian/dev chroot-debian/proc

Just do whatever you wish with your chroot environment, and you can just delete the chroot folder when you realized that you messed up too much already.

This entry was posted on Wednesday, November 29th, 2006 at 12:51 am and is filed under Information Insemination. You can follow any comments to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.