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

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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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7 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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22 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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1answer
19 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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1answer
37 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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56 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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14 views

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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12 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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1answer
74 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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43 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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29 views

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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101 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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75 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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1answer
45 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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26 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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68 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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103 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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1answer
762 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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50 views

Howto write in chroot on Secure FTP(sftp)

As I understood, directory for chroot must have permission 755, and must be owned by root. But 755 mean that only owner(root) have acces for write to this folder. But what if I have user web, with ...
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50 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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50 views

mount a specific dev device under chroot

I want to use a specific disk under chroot. I know this command: mount -o bind /dev /mnt/chroot/dev This command populates all devices under chroot. But I want to use only few devices under ...
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99 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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32 views

OS under chroot retaining /boot from host OS

The system is Fedora 20. At to bottom of the posting is a list of the script to mount the chroot object directories. Below is a df list from the top level OS before chroot command. After the chroot ...
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2answers
198 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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1answer
91 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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1answer
24 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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1answer
106 views

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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45 views

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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15 views

GRUB Booting from subdir Issue

I am encountering a boot issue: My primary linux distro was not installed on / but (I don't know why the developers chose it) on /@/ which implies that my rootfs lies under /@. However when I ...
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816 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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165 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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213 views

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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1answer
41 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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1answer
99 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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156 views

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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112 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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692 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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2answers
2k 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 ...
4
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1answer
7k views

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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2answers
2k views

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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2answers
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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698 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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344 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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432 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 ...
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599 views

chroot under Mac OS X

So I have googled a lot with different search terms, but didn't find anything usable, only that intead of ldd I have to use otool -L to see the used libraries of a programm. I tried to copy bash into ...
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533 views

Install full version of Unity on Chrome OS using crouton

I have an Acer Chromebook. Using crouton, I installed Ubuntu (unity) on it. I am pretty familiar Ubuntu 12.04. But the installed one is very minimized package. My fonts are missing and I manually ...
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288 views

How do I fix the WSOD in phpMyAdmin and Drupal in chrooted Apache?

When I attempt to run phpMyAdmin (both 3.5.5 and 4.0.4.2) or Drupal (7.22) in chrooted Apache (2.2.3), I get the WSOD (White Screen Of Death; a.k.a. a blank page). I have tried with both mod_chroot ...
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226 views

schroot Don't Share Home Directory

I created a schroot recently (following the directions here), and it conveniently shares my (host) user home directory. That is, /home/username is the same in the chroot as outside the chroot. Where ...