A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name (and therefore normally not access) files outside the designated directory tree.

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Pureftpd as user,is possible?

I want to run pure-ftpd in chroot as user,not as root,i've set server to non privileged port 5050,but i don't know how to run as user instead of root,someone know the option?
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227 views

How to create a tar of a chroot?

I want to capture everything in a chroot but am unsure whether I need to first chroot into it to see the full filesystem/preserver permissions etc. From outside the chroot, it seems like I would miss ...
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79 views

How to input Chinese (JCK) in console without X running

Is it possible at all to input JCK languages (Traditional Chinese in my case) in the console without having X-windows running? All the help I have found online for Chinese input assume that X and ...
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481 views

How to properly unmount mounted directories after doing chroot?

Usually, I mount some directories to chroot environtment like this: mount -t proc /proc /mnt/chroot/proc mount --rbind /dev /mnt/chroot/dev mount --rbind /sys /mnt/chroot/sys mount --rbind /run ...
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5k views

Disable operations outside user's home directory with chroot jail?

I'm trying to restrict a user to a specific directory called gclegal using a chroot jail. I've uncommented the line in the /etc/vsftpd.conf file chroot_local_user=YES Created a new user called kg: ...
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83 views

Automated test for install script

I'm writing an install script for an appliance that modifies system config files under /etc (amongst other things). How can I test this script non-destructively? Ideally I would like to run the ...
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485 views

Swap root at runtime

I am developing an embedded Linux system. The system is usually installed by creating a ISO file which is written to a USB stick the board can boot from. To make the installation possible to do ...
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1answer
72 views

sbuild schroot fails

I am trying to package an Ubuntu package as a Debian package. For maintainability I am trying to use sbuild. Following the steps here I go through the first five steps, but when I try to build I get ...
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1answer
49 views

How can I boot into a chroot, without leaving the current OS session?

I'm building Linux systems, turn them into ISOs and then test them in a VM. But that step takes minutes, which I would like to avoid, while developing. Is there a way I can take the files, which are ...
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35 views

How is OpenSSH sftp jail/chroot working?

This question is actually too broad... What I really want to know is whether or not it actually chroots and, if so, how a SSH user deamon[1] can be launched in that jail in spite of the obvious lack ...
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52 views

How to create 32bit chroot system that is just a mirror of my current system for compiling purposes?

After lot of googling and posting and crying over obscure GCC linker error messages I concluded that the only way to reliably build something in foreign CPU architecture is to set up a chroot ...
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1answer
30 views

enable a user to chroot?

I have a script that I am running as a regular user (but one that can sudo). This script relates to BIND and gathers information each time it runs. It has not been working correctly and I noticed ...
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28 views

how to avoid direct/network root login on the system and using some chroot to admin the system?

here the idea for which I seek a solution: I want to have a system with no way to log as root. I want to manage the system (edit /etc/files, (un)install something, etc.) by physically unplug the ...
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45 views

Is it possible to chroot sftp service as unprivileged user?

I currently have an sftp-only sshd service running as an unprivileged user that works fine. When adding ChrootDirectory %h to the separate user_sshd_config, the user is immediately disconnected after ...
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1answer
119 views

Running ssh from chroot jail in SuSE

I'm trying to make a server that acts as sort of an access point for lots of other machines. I want to give one user jailed access to it so they can ssh to other machines in the network. I've got ...
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1answer
167 views

chroot cannot find cgi file

I am unable to serve or execute a cgi file, and the cause seems to be that chroot is unable to find the cgi file when the permission is set to executable. $>ls -l /var/www/my/dir/test.cgi ...
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1answer
618 views

Docker in Crouton - VFS consuming astronomical amounts of space

I'm attempting to help out a roommate who has installed Kubuntu on his Chromebook using Crouton (it's basically just a fancy chroot run within ChromeOS). I helped him get the Docker daemon running, ...
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1answer
120 views

Jail in chroot in debian 7.5 - Privileges Separation problem

I'm trying to create a jail for a user in my server. Let's call the user "juser". What do I want to achieve? I want an ssh user to be jailed in his home folder and not have any access (whatsoever) on ...
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1answer
521 views

How do I properly bind directories inside chroot jails using fstab?

I'm running nginx, PHP-FPM and MySQL on Debian Wheezy. I've set up chroot jails (with debootstrap) for each individual virtual host in /srv/. Everything is working like one would expect, but after ...
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1answer
165 views

Can't losetup anything on armhf NAS

I'm pretty new to linux and chrooted my NAS with armhf architecture and tried looping device: losetup -f losetup: Could not find any loop device. Maybe this kernel does not know about the loop ...
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310 views

Limit access on external drive mounted and used by sftp

I've got a unix user "popolo" who is chrooted in /srv/ftp/ and I mount my two external drives by /etc/fstab in /srv/ftp so I have /srv/stp/dude and /srv/ftp/sweet. Popolo has access to those drives ...
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1answer
86 views

ARM cross compilation package not found

I'm trying for arm cross compilation on my i386 machine using sysroot and chroot.I want to set environment variables like PKG_CONFIG_PATH to sysroot.Right now my code is not compiling because it is ...
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359 views

Different fakechroot behavior on Fedora and Ubuntu

Consider the following directory tree (mychroot): mychroot/ ├── proc │   └── cpuinfo └── usr └── bin └── ls On Fedora 20: $ fakechroot chroot ./mychroot/ /usr/bin/ls proc cpuinfo ...
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1answer
4k views

How can I chroot into a live filesystem.squashfs Linux distribution?

I would like to chroot into a Live USB Linux distro, if such thing is possible. I don't know if there is a generic method, so I will detail my specific test. I am testing Kali Linux v1.0.5 Live USB ...
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190 views

Correlation between CHROOT and Crouton - -

I am trying to understand what purpose/function of CHROOT and how using it with Crouton will allow you to use certain Linux distros and libs. Does CHROOT essentially create some kind of a ...
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1answer
3k views

Unable to get Wireless working during Arch Linux install

I'm following the Arch Linux install guide here: https://wiki.archlinux.org/index.php/Beginners%27_Guide I'm installing from a live disc. I've just used pacstrap to install the base system. I then ...
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2k views

Set up chroot for LDAP users in RHEL6

I have been working on this for 2 days now and am about to give up so someone please help. I have a Red Hat 6 server joined to my active directory domain. Logins work just fine under normal ...
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498 views

Chrooting into ArchLinux iso installation environment

I'm trying to install ArchLinux, but my laptop hangs whenever I have any bootable media attached (other than the primary disk luckily). I tell you this, not because I'm looking to fix my laptop ...
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589 views

Implement ProFTPd server without chroot

Can I use ProFTPd without using a chroot jail (thereby preventing access to anything outside of the FTP root)? I have a requirement to have symlinks in my FTP source that point to locations outside of ...
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1answer
959 views

Start SSH session in some other directory than their home directory and lock them there

I've set up a SSH server which I've let some friends log into, both via SSH and FileZilla. I put a symbolic link to two hard drives in their home directories so that they could access some files. This ...
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1answer
12 views

Using chroot to restore Kubuntu 14.04

I have accidentaly purged some system files and now Kubuntu 14.04 won't boot past the start up logo. I read online that I can perform changes on my system through my LiveUSB and the BASH chroot ...
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19 views

American Fuzzy Lop run test program as unprivileged user or in chroot

I'm attempting to test tcsh on OS X with American Fuzzy Lop as an exercise, but don't want to accidentally clobber any useful files on my system. Knowing essentially nothing about fuzz testing, I did ...
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22 views

Why does copying /lib into a chroot jail not work? [closed]

I am working on a chroot jail that runs dropbear on an embedded system. I have created the jail, and tested it works. The issue I'm having is with dropbear. (dropbear is running in the chroot ...
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46 views

Python installation fails in chroot

I tried to install Miniconda Python in a chroot: chroot $1 wget -q https://repo.continuum.io/miniconda/Miniconda3-3.19.0-Linux-x86_64.sh -O /tmp/miniconda.sh ...
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35 views

How to 'snapshot' a chroot?

I want to perform something similar to a 'clone' on vmware fusion/virtualbox/a VM manager. Host and chroot are both ubuntu. One complicating factor may be that this chroot may have one or more child ...
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33 views

Build errors on a copied operating system in a chroot

I'm in a bit of an interesting situation. In an attempt to have root access on my school's physics network computers, I ended up creating a chroot environment, using fakeroot and fakechroot. As every ...
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1answer
242 views

debian jessie volume group not found and cant boot

I have accidentally deleted my boot partition. OS is Debian Jessie with LUKS LVM. I have created a new partition and successfully reinstalled grub with chroot method. Now when I try to boot, my root ...
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55 views

Trigger a GTK application from CHROOT during LightDM startup

I am trying run a GTK application with chrooted environment. Mentioned are the lightdm settings which I have set. System configuration: OS : Debian 8 chroot FS: Debian 6 Windows manager : LXDE ...
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198 views

unix chroot jail shell (with or without sudo?)

at the moment I am creating a chroot jail. Therefore I read some articles and everything seems to be clear, exept for one thing: the chroot jail shell In one source they created the following setup ...
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37 views

SFTP chrooted to home directory and users wanted to have a write permission to home directory [duplicate]

I have a new request from the user and these are the following requirements Request to have an sftp user account and disable shell access Sftp User should only see their home directory (ie.. ...
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1answer
158 views

pid file error when starting stunnel

I'm trying to start stunnel at my mac os as client. But I'm not able to get it running as I have noticed this reported problem at the stunnel's log file: 2015.10.10 16:10:24 LOG5[ui]: stunnel 5.23 on ...
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111 views

Arch - How do Install a package made in a clean chroot?

I've been trying to build and install GNU Icecat from source on Arch linux using yaourt, but I've recieved errors during the build relating to the Infinality font set. I came across this page from ...
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37 views

How does a chroot system interact with the kernel

I am trying to debug an OpenGL issue in a piece of closed source software. The software supposedly works in Debian Wheezy and I would like to get it working in Arch. I tried running it in a Debian ...
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11 views

Chroot Users to /opt and subdirectories [duplicate]

I'll make this short and hopefully I make sense. Im trying to give a user ssh access, but, he/she must only be able to access /opt and the few subdirectories that live under it. However, here's ...
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271 views

How to use bindfs to create a shared folder between a chroot environment and its host

As the title says. I want to use bindfs (or any viable alternative) to solve the following problem: I have a local folder that contains a maven project I am working on. However I can only build in a ...
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36 views

Is it secure to mount with defaults my /chroot partition?

I run debian with GRSECURITY patched kernel. Apache is chrooted with mod_chroot under /chroot For now I have mounted /chroot partition with defaults,nodev. However, Apache need to access ...
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88 views

Debian ARM on chroot Mumble server error

I use Debian running in a chroot next Android. $ uname -a Linux localhost 3.0.64-CM-g7e7a10d #5 SMP PREEMPT Wed Apr 8 17:34:47 BRT 2015 armv7l GNU/Linux I installed mumble server apt-get install ...
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61 views

Why does grub2-install escape chroot jail?

I have an odd experience. Scenario: I am writing a Linux installer (based on OpenSUSE 12.2) that runs in an initrd (actually initramfs), and I'm trying to update the bootloader. A copy of the ...
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1k views

No screens found error when starting fresh install of chroot debian wheezy with xfce gui

I am not an experienced Linux user, but have bought a chromebook and am now installing crouton. This is the very first thing I did with the Chromebook, so I don't think I need a powerwash. First I ...
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86 views

Setting up basic chroot environment from a fedora ISO image in Ubuntu

From a tutorial in https://help.ubuntu.com/community/DebootstrapChroot at TLDR section i was able to set up a chroot environment for 32 bit Ubuntu ISO image under 64 bit Ubuntu. Now i need to do the ...