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This article introduces what are the specific steps of Linux system to build chroot environment, the content is very detailed, interested friends can refer to, hope to be helpful to you.

Introduction to chroot: chroot is both a command and a system call to Linux.

The function of chroot is to change the root directory of the current environment to a folder, something outside this folder.

Are invisible to the current environment.

So if you are running untrusted code or programs, using chroot as a security sandbox is a good choice.

Linux (CentOS) system to build chroot environment specific steps: using Red Hat and CentOS system installation package manager yum, it is very easy to create a chroot environment. The steps are as follows:

\ 1. Create a new directory for chroot, for example:

Mkdir-p / var/jail/chroot\ 2. To build a chroot environment, you first need to initialize the rpm database.

Mkdir-p / var/jail/chroot/var/lib/rpm rpm-- rebuilddb-- root=/var/jail/chroot3. To save time, download the CentOS distribution manually and install it using the rpm command:

Wget http://mirror.centos.org/centos/6/os/i386/Packages/centos-release-6-0.el6.centos.5.i686.rpm (or whatever version you want to use) rpm-I-root=/var/jail/chroot-nodeps centos-release-6-0.el6.centos.5.i686.rpm\ 4. Use the YUM tool to install the remaining packages of the CentOS distribution to the virtual chroot environment.

Yum-- installroot=/var/jail/chroot install-y rpm-build yum. Finally, when the whole process is over (which will take a while), you can initialize chroot and try the new system:

Chroot / var/jail/chroot if everything is all right, you already have a relatively simple working chroot environment. However, if you want to actually use this environment, you need other important filesystem essential components, such as / proc and / dev. You can follow the instructions in the link above.

The translator added: the proc file loads the script to determine whether the proc file has been loaded, and calls mount without loading:

Mount-l | grep "/ var/jail/chroot/proc" > / dev/null if [$?! = 0] which versions of then sudo mount-t proc chroot_proc / var/jail/chroot/proc/ fiLinux are available in Linux: Deepin, UbuntuKylin, Manjaro, LinuxMint, Ubuntu and other versions. Among them, Deepin is one of the best-developed Linux distributions in China; UbuntuKylin is a derivative release based on Ubuntu; Manjaro is a Linux release based on Arch; LinuxMint's default Cinnamon desktop is similar to Windows XP's easy-to-use; Ubuntu is the Linux operating system based on desktop applications.

On the Linux system to build chroot environment what is the specific steps to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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