What's the proper way to prepare chroot to recover a broken Linux installation?
Problem
This question relates to questions that are asked often. The procedure is frequently mentioned or linked to offsite, but is not often clearly and correctly stated. In an objective to concentrate useful information in one place, this question seeks to provide a clear, correct reference for this procedure. What are the proper steps to prepare a chroot environment for a recovery procedure? In many situations, repairing a broken Linux installation is best done from within the installation. But if the system won't boot, how do you fix it from within? Let's assume you manage to boot into an alternate system. Once there, you need to access your broken installation in order to fix it. Many recovery How-Tos recommend using chroot in order to run programs as if you are actually booted into the broken installation. What is the basic procedure? Are there accepted best-practices to follow? What variables need to be considered in order to adapt the basic preparation steps to a particular recovery t…
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Fix for: What's the proper way to prepare chroot to recover a broken Linux installation?
Here are some resources: ArchLinux wiki on "Change Root" ArchLinux Wiki on "Reinstalling GRUB" Gentoo Wiki on "Chroot" "Changing root" or "chrooting" is a method for zooming in on part of your filesystem, so that, for example, will refer to what was formerly accessible at . The "root" in the expression "chroot" refers to the root filesystem , not to the root user. (Though typically you will need root user privileges in order to chroot.) Preparation All the steps in this guide will have to be pe…
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