chroot is a command on UNIX-like systems which runs a process under a different root directory.

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creating linux device files for bootstrap

I'm currently independently researching device files as a part of learning more about the Linux system in depth. My current goal is to bootstrap Debian Linux through cdebootstrap. I followed the guide ...
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how to mount as read-write filesystem and not read-only

So, I'm trying to install gentoo in a virtual machine. I ran into this problem and began researching what the answer might be. The file system is read only. I can't mount it as read-write. I'd rather ...
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How to make a new SSH user for linux which will allow the user to access only that folder and cannot go back to other folders [duplicate]

How can i make a new SSH user for linux (Ubuntu) which will allow the user only to access that folder and not to go back to other folder, I have searched many tutorials/support for this but those all ...
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Where do we put “mount -t proc …” in a Chroot environment?

Please forgive my ignorance... I have a number of Debian Chroot environments for testing software. They were necessary due to our package maintainer testing us under the same. My test scripts use ...
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Install stuff in a schroot

I have a question regarding chroots: say I have a program compiled and built into a root file tree structure, ex: . ├── bin │ └── software ├── etc ... That is, to install this, I'd have to merge ...
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setting up mirrorlist for pacman.d in chroot / installing arch to usb stick

I am new to ArchLinux and—moreover—deeper linux noodling. I am following the guide on the Arch Wiki. I am at a step where I set up the mirror list for repositories. I have my mirrorlist file in ...
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289 views

Compiler tools, execv and “exec format error” under s390x chroot

I have a Debian 8 x86_64 machine with two chroot environments. The first is armel and the second is s390x. armel was installed last week, and s390x was installed recently. armel is fine both before ...
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55 views

Emacs in a Debian 8 chroot environment?

I'm working with a Debian maintainer on a failed self test for a software package under ARMEL. The maintainer was kind enough to help me duplicate his environment. When I attempt to add ...
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Roll back to libc6-amd64 using a live cd and chroot on ssd with GPT filesystem

I was attempting to follow a steam guide to install a dedicated game server. See my original post here. Basically I really messed up. I attempted to roll back but when it downgraded my network ...
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14 views

Linux unattached chroot or directory?

Would it be possible to chroot or otherwise create an unlinked(in the main root file system) directory? From what I understand, the kernel automatically deletes any file/folder that has no link in the ...
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64 views

Is running ldconfig inside fakeroot possible?

I am trying to run debian wheezy in chroot (got debian files from https://github.com/tianon/docker-brew-debian/blob/02108ee636f54b504e2aec4ee7bb59a2de8a5b99/wheezy/rootfs.tar.xz) That is the way i'm ...
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56 views

Empty Boot folder on chroot Debian

I have wanted to create a custom livecd of Debian. I created a basic Debian (jessie) with debootstrap and began to configuring it. When I wanted to get vmlinuz and initrd files, I could not find them ...
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245 views

Value too large for defined data type

I am following this guide on how to chroot arch linux in my android device. Welcome back gnu! - My revenge on Android In case you do not read the guide, I made a linux.img file on my pc, using dd ...
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150 views

How to create ftp restricted user with vsftpd? (by terminal in ubuntu)

I have installed ubuntu 12.04 with vsftpd. I need to create ftp users able to access only directories like /var/www/nameDirectory. I though it was a very basic feature, but seems not... I tried to ...
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FTP and Chroot problems, and no solutions

I'm new! So. I have this question. I recently set up an ftp server to help me manage my web server. (ftp.thesqrtminus1.com) I am using vsftpd, and I have this problem. I've configured it so that ...
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24 views

ccache fails to create directory within AFS … from a chroot environment

probably a complicated; unusual setup; but maybe somebody has an idea. So, basically my company has configured all our "compute" servers using the good old AFS (andrew file system). This means: i can ...
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118 views

Unable to execute root commands inside an openvpn script

I'm using the openvpn option client-connect to run a script when a client connects. The script works fine when I use simple commands but when I add commands that need root privileges it doesn't work ...
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70 views

Arch Linux chroot cannot mount sysfs

I am running in a chroot with Arch Linux. It is efficient. I can start the session and also was able to do pacman -Syu. My problem is, I cannot do any pacman activities now more. It says I should do ...
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home folder empty after schroot remove

I was trying to backup and refresh my root server. (Update everything, delete unused files etc.) I uninstalled schroot because i thought i don't use it anyway. Afterwards i started the backup ...
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213 views

Chroot into Arch Bootable USB

I have a bootable USB drive with Arch Linux recently installed on it (Linux kernel 3.19.2). I want to plug it in to my computer and chroot into it (or possibly run it inside a container, using ...
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142 views

SSH remote chroot without root

I have a dual boot system consisting of two Debian OSes. I've installed one of them in a root of the partition and installed the other Debian using debootstrap; the installation partition is called ...
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75 views

“Cannot open audit interface” upgrading libuuid1 — is selinux confused?

I have a Debian chroot on a Linux system running an alternative Linux distro. It's always worked fine in the past but in the past few months I've found myself unable to upgrade libuuid1. Instead it ...
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37 views

Use a dynamic mount path with a symlink

I need to have a chrooted user access a folder outside of its chroot. So I use a bind mount for this and it works fine. The mount points to a symlink folder and this symlink changes automatically ...
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113 views

Starting a chroot and drop into nonprivileged user home

I need to (temporarily) jail a non-privileged user. I tried something like: sudo chroot --userspec=mcon:users /wherever/chroottarget /bin/bash -i This almost works, but it doesn't set env vars ...
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182 views

Set up sftp mysql authentication with chroot

How do I set up an openssh SFTP server that authenticates against a MySQL table where the users are jailed? Each user will need to have its own jail: /home/sftp/john /home/sftp/jane etc.. However ...
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1k views

Mounting /dev/shm in a Gentoo chroot on Xubuntu 14.04

I'm trying to install Gentoo, and instead of using one of the bootable minimal install CDs provided by Gentoo, I'm using a chroot in Ubuntu. I'm mainly following the instructions outlined here, ...
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74 views

How to hide subdirectories within chrooted directory from users who don't have access

Apologies if this problem has been answered before / elsewhere. I've had a hunt around but am unable to find anything. If so please point me in the right direction. I'm running a linux ftp server ...
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143 views

Is password-less access to SSH using chroot setup possible?

I was able to log in into a ssh server using public and private keys without using a password. I was able to also setup chroot and jail a new user and avoid that the user could connect via ssh but ...
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335 views

Have Arch Linux, want slack, must keep both; no cd, no usb or money; can chroot, pre-partitioned: GPT

I have a laptop with Arch Linux on it [averagejoey2000@JoeyHobbyPCarchLinux arch-install-scripts]$ lsblk -l NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 596.2G 0 disk sda1 8:1 0 ...
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113 views

How to distinguish 'syscalls' form 'int 80h' when using ptrace

As far as I know, ptrace can only get syscall number by PTRACE_SYSCALL, but syscall number is different in x86 and x64. So is there any way to figure out where this syscall real origin? I am now ...
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27 views

Package downgrade from live environment

I run arch Linux on an hp laptop. I installed a graphical login manager (gdm) and during boot, the kernel unpacks, systemd starts, but when it attempts to start my login manager "An error has ...
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Passwordless linux account converted to Chroot jailed sftp now requires password?

I created a user and did an RSA key exchange for a passwordless connection. This worked. I also created a chroot jailed sftp only user. This also worked. I then created a third user. I set up the ...
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How to get out of a chrooted environment in ArchLinux

I'm attempting to install ArchLinux via SSH. At the moment I'm not at the machine, but I do have root access to it. I have SSH setup in the Chroot environment (arch-chroot). Is there anyway, while ...
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Is there a way to use ACL to deny access to folders by user, preferrably by making them invisible?

Is there a way to use Linux's Access Control Lists feature to deny access to folders by user, preferrably by making them invisible? This is needed for a chroot SFTP environment where we want to block ...
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1k views

Chroot ssh user to home folder results in Connection refused

I'm trying to give someone ssh access to a (Ubuntu 14.04) server I've got, but I want to limit them to their own home folder. So I'm trying to follow this tutorial. I first created a user (sudo ...
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235 views

ubuntu on chroot apt-get update fail - Unable to parse package

When I chroot under Ubuntu 12.04 and run apt-get update in my chroot home, I get: 100% [21 Translation-en gzip 0 B] [22 Translation-en bzip2 3E: Unable to parse package file ...
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Unity closes on Ubuntu Logout, but does not complete logout. (Crouton on Chromebook)

I've got a Chromebook 14 "dual-booting" Ubuntu 14.04 using Crouton with the stock Chrome OS. I've had it like this for a while with everything operating fine. As you know, Linux Distros are kind of ...
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44 views

Using my server to do computationally heavy tasks

I have a laptop I do most of my computing on but it's very lightweight and it takes ages to compile anything on, or do any heavy tasks. Something like installing an emacs plugin or a cabal package can ...
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134 views

Install windows on chroot of linux

How do I install Windows on chroot in Linux, if it is possible at all. I am confused about the meaning of chroot so any help would be appreciated.
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Chroot sftp jail seems to be insistent on not working

So I followed this guide to the letter: http://markshust.com/2013/04/01/how-setup-chrootd-sftp-account-linux and a few other guides as well, but I seem to be incapable of getting a connection. I am ...
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127 views

Is there any way to virtualize a Linux installation on another partition?

The basic idea is like this: run another Linux installation as if it was in VirturalBox or VM ware. With "chroot", I can do something similar. For example, I can mount the partition where Arch Linux ...
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975 views

rsync error: symlink has no referent

I am trying to configure rsnapshot (which uses rsync) to backup a Windows server but I am having trouble with rsync being unable to follow a symlink on the server to be backed up. Setup: Windows ...
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4k views

How to start Xorg-server inside plain chroot?

when I runchroot /somepath /usr/bin/startxI got something what looks like an evdev problem... (I correctly --bind mounted /dev/ /dev/pts /dev/shm /proc /sys /tmp ) The screen is displayed and ...
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Start a systemd service inside chroot

With init scripts (or with openrc) I alway could run services from a different installation root. but when I run chroot /somepath/to_root /usr/bin/systemctl start someservice I got: Running in ...
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chrooted sftp user with write permissions to /var/www

I am getting confused about this setup that I am trying to deploy. I hope someone of you folks can lend me a hand: much much appreciated. Background info Server is Debian 6.0, ext3, with ...
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chroot on OSX as a different OS

I was wondering if anyone has been able to use chroot on OSX to run another OS (ubuntu, centos). I know that they are very different, but almost everything I want to use this for wouldn't care about ...
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1k views

schroot build environment setup how to avoid bind-mount home

The recent linux distributions such as Fedora and Ubuntu all use chroot environment to make the build. Because when making the build often it needs to install some special tools, and to install to the ...
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787 views

Logging rssh/chroot SFTP users

I'm trying to log activity (uploads, downloads, renames, deletes) for SFTP users. If I SFTP with a normal user, it logs to /var/log/secure. If I SFTP with a rssh user, it logs that they connected, but ...
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419 views

OpenBSD 'device not configured' error in chroot-ed environment

I have asked this question on StackOverflow but given the comment there it seems like it fits here better. This is almost certainly a system configuration issue—you didn't set up the jail ...
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531 views

Directive 'ChrootDirectory' is not allowed with new OpenSSH

I am trying to set up chrooted SFTP access but OpenSSH is giving this error: /etc/ssh/sshd_config: line 94: Bad configuration option: ChrootDirectory /etc/ssh/sshd_config line 94: Directive ...