Fedora: Creating Debian chroot with ssh server

I use Fedora on the Desktop but I need to do some development on Debian. chroots gives you no performance overhead, while virtual machines gives you CPU and memory insulation. Also the chroot is only a directory on my development tree.

I'm using Fedora 17 on my workstation and Debian 7 inside the chroot. The debootstrap command will save the files on the directory debian7-chroot/ under the current directory.

1 - Install debootstrap and dpkg on Fedora:
Fedora # yum install debootstrap dpkg

2 - Create the basic Debian:
Fedora # debootstrap wheezy debian7-chroot/ http://ftp.fr.debian.org/debian

3 - Enter your new Debian:
Fedora # chroot /path/to/destdir

4 - Install additional useful packages:
debian-chroot: # apt-get install locales less vim openssh-server sudo aptitude

5 - Configure openssh server to start server on port 2222:
debian-chroot: # vi /etc/ssh/sshd_config

Chage:
Port 22

To:
Port 2222

6 - Change root password
debian-chroot: # passwd

7 - Return to your desktop distro:
debian-chroot: # exit

8 - Create start and stop script for your chrooted Debian:
Fedora # cat start.sh

#!/bin/bash
umount debian7-chroot/tmp debian7-chroot/proc debian7-chroot/sys debian7-chroot/dev/pts debian7-chroot/dev
umount debian7-chroot/tmp debian7-chroot/proc debian7-chroot/sys debian7-chroot/dev/pts debian7-chroot/dev

mount /tmp debian7-chroot/tmp -o bind
mount proc debian7-chroot/proc -t proc -o nosuid,noexec,nodev
mount sysfs debian7-chroot/sys -t sysfs -o nosuid,noexec,nodev
mount devtmpfs debian7-chroot/dev -t devtmpfs -o mode=0755,nosuid
mount devpts debian7-chroot/dev/pts -t devpts -o gid=5,mode=620

chroot debian7-chroot /etc/init.d/ssh stop
chroot debian7-chroot /etc/init.d/ssh start

Fedora # cat stop.sh

#!/bin/bash
chroot debian7-chroot /etc/init.d/ssh stop

umount debian7-chroot/tmp debian7-chroot/proc debian7-chroot/sys debian7-chroot/dev/pts debian7-chroot/dev
umount debian7-chroot/tmp debian7-chroot/proc debian7-chroot/sys debian7-chroot/dev/pts debian7-chroot/dev

9 - Start the ssh server inside the Debian chroot:
Fedora # ./start.sh

10 - Connect over ssh to Debian chroot:
Fedora # ssh root@localhost -p 2200



Comments

Post a Comment

Popular posts from this blog

Toshiba R830 and 16GB of RAM

Image
The datasheet of Toshiba R830-10P mentions that the maximum memory capacity is 8GB. See it  here . But Intel says that the i7-2620M supports up to 16GB of RAM. See it here . I have asked for help on Toshiba Forums. Nothing useful from there. See it here . I was curious as I have a very particular need for 16GB of RAM. Today I decided to give it a try. I bought two Patriot PSD38G13332S (8GB PC3 - 10600 1333MHz CL9 SoDimm) and installed it on the notebook. It just worked. So if you have the need for 16GB of RAM and a similar notebook from Toshiba, you can install 16GB of RAM.
Read more

Five steps to create Fedora chroot jail using yum

Pre-Notes: - This will work only if your Linux Distro is based on RPM and YUM. I have tested it on Fedora but it may also work on RHEL and Centos... It will NOT work on Ubuntu, Debian, Suse... - The operating system and its version will be the same inside and outside the chroot jail. - On the example, the chroot will be placed at: /chroot/devel - To install different version of Fedora or other RPM based distro, it will be necessary to manage yum package repositories outside the jail. The five steps: # 1 - Create the chroot directory $ sudo mkdir -p /chroot/devel/var/lib/rpm # 2 - Initiate rpm db on chroot $ sudo rpm --root /chroot/devel --initdb # 3 - download Fedora Release package. # If you do not want Fedora, download the correct *-release package and use it # on step 4. There are examples on the references. $ yumdownloader --destdir=/tmp fedora-release # 4 - Install downloaded Fedora release inside chroot $ sudo rpm --root /chroot/devel -ivh /tmp/fedora-release*r
Read more

GitHub Social Coding

Image
Github is simple to use and powerful git repository with great web interface. If your project is open source, there is no problem if your repository is also open, right? What could be better to open source projects than having free hosting on feature rich and reliable service? But if you are not the good guy and want to have your git repositories private, looks fair to charge you little money to keep your code safe.  This looks to be the basic business model do Github and the prices are attractive. For those have never being in touch with versioning and code repositories, Github is also good place to start. The step-by-step documentation will guide you over the process of using git. It is really easy to start. Github also encourages you to make friends and to grow your social network around the code you share. I would like to be your friend on GitHub, so you are invited to see my profile: https://github.com/petersenna If you are looking for a job, Github
Read more