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

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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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33 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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108 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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27 views

Explaining the inner working of pivot_root

Having two Linux dists in two independent partitions, each one with all its directories in the same partition, including swap, can I just: cd second_linux_dir pivot_root . running_linux_dir exec ...
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146 views

How to start Xorg-server inside chroot?

when I run chroot /somepath /usr/bin/startx I got something what looks like an evdev problem... (I correctly --bind mounted /dev/ /dev/pts /dev/shm /proc /sys /tmp ) I got no mouse nor keyboard and I ...
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2answers
536 views

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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1answer
1k 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
422 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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133 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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297 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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1answer
130 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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1answer
192 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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354 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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1answer
352 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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45 views

Chroot SFTP and tunneling

I am attempting to give chroot sftp access to a group, as well as giving limited tunneling capability. I can give one or the other, but haven't figured out how to do both at the same time. The ...
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1answer
140 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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93 views

chroot sftp home directory as well as access one level above

CentOS 6, latest openSSH, using latest scponly as shell (also have rssh, but that doesn't want to work either) All chroot'ing functionality done via sshd_conf Everything works as expected except one ...
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1answer
86 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 ...
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361 views

chroot SFTP user can't modify any files in mounted drive

Well, here are the steps I’ve done; the problem is listed at the bottom. sudo mkdir /home/test sudo useradd test sudo chown root:test /home/test sudo chmod 755 /home/test sudo groupadd testgroup sudo ...
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1answer
242 views

Chroot from android into environment as user

I'm trying to use my android tablet as a dev environment. So far I have created an Arch and Ubuntu img. I can chroot into both just fine and I have created a user using adduser, but I do not know how ...
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1answer
344 views

Use Qemu & chroot to reset password on mounted external disk

I have a NAS based on Linux, but the root password is kept secret by the manufacturer. Now to reset the password I am trying to mount the disk to my local linux computer. All of the files are present ...
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2answers
395 views

Create a tarball with a fake `root`

I'm working on something in a Makefile that will look something like this: tarball: mkdir -p tmp/tarball/etc/service mkdir -p tmp/tarball/usr/local mkdir -p ...
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1answer
145 views

How do I safely allow unprivileged users to copy files to my server?

I know that I can use rsync over ssh to send files from one Linux computer to another. However, in this case I need to give access to my system to users with a lower level of trust (people who may ...
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1answer
191 views

copied chroot jail directory cant be chrooted

I am developing a package so when users login through ssh they are forwarded to a chroot jail. The jail directory is created via makejail program on building process. But when the jail package copy ...
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1answer
54 views

file command output — linux version

Why two executables are showing different version for linux. When cross-compiled compiled under chroot enviroment. GNU/Linux 3.6.3, GNU/Linux 2.6.26, Hello world program output. ...
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1answer
473 views

yum --installroot should use /etc/yum.repos.d?

I have a chroot environment in a directory. I want to install some RPM packages using the repositories in that chroot environment instead of the host OS ones. yum --installroot= will look for ...
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1answer
125 views

How to transfer a USB bootable ubuntu system to a bootable DVD

I've built a USB bootable 1.5G system derived from Ubuntu core (along the lines of this example). It boots using syslinux on most of our Intel hardware. Intel iMacs are an exception (grub EFI with GPT ...
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26 views

statify executables in chroot

I am trying to run arbitrary executables in a chroot. Unfortunately I have different version of the shared library dependencies of some of the executables in the chroot. Is it possible to reroute the ...
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37 views

Chroot based on group name

I have a *nix system on which I want to get an SFTP chroot set up. Let's say there are three users, users from the same country can read and write the files from their compatriots, but should be ...
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2answers
836 views

Linux commands “id” and “whoami” dependencies (for chroot environment)

I have a new openssh (openssh-server-6.1p1-4.fc18.i686) chroot environment in Fedora Core 18 and puts users in a chroot directory structure with a (bash) shell. During troubleshooting SELinux has been ...
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1answer
180 views

Why `/proc` file system should be mounted when re-install GRUB from `chroot`?

Currently, the MBR on my machine is corrupted, so I decide to re-install GRUB from a liveCD and with chroot. From this tutorial, I can complete the re-installation. However, I'm not clear about the ...
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1answer
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Arch Linux Install, Why is arch-chroot giving me an error?

I'm following the Arch Linux install instructions found here from a live cd, and I'm stuck issuing the following command: # arch-chroot /mnt mount: sys is already mounted or /mnt/sys busy sys ...
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111 views

Why is “ls /..” different to “ls /” in fakechroot fakeroot chroot environment?

I am testing a bash script. It sometimes does this: ls /.. In Linux, this is same as: ls / But in a fakechroot setup like this: fakechroot fakeroot chroot sandpit I get a list of files in my ...
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127 views

executing a command of a chroot outside of the chroot

I have a chroot environment on /data/workbench/mnt and I want to execute a binary which is inside the chroot environment (for example /data/workbench/mnt/bin/bash). I added the chroot library path to ...
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1answer
820 views

How do I use the terminal SCREEN when chrooted?

How do I allow a user to use SCREEN on a chrooted user? I have tried everything but I keep on failing. I need the user to be able to use SCREEN when they are logged in bash as a chrooted user.
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1answer
326 views

Does schroot allow configuration files in the home directory to be overwritten?

When schroot is configured to mount /home, will packages installed inside the chroot overwrite the configuration files in $HOME? For example, if a newer version of gconf2 is installed inside the ...
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2answers
2k views

What's missing from my sftp chroot setup?

I've followed a half-dozen different tutorials on setting up chroot for sftp users, but my jailed users can still browse up into parent directories. I suspect my permissions aren't set up correctly, ...
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3answers
106 views

Do all my programs have owner rights to all my files?

I'm worried about all my programs having full access to all my files. Eg: My user is 'john'. I install some program, say Dropbox. Dropbox runs as 'john'. Therefore it not only has full rights on its ...
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1answer
114 views

Use a host machine's packages from guest chroot in Ubuntu

I am testing my software's compatibility with a very old version of Ubuntu. The software until now was developed on Ubuntu Precise 12.04 and now need to be tested on Ubuntu 6.0 Dapper. For this I ...
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46 views

tazpkg install option asking for su when in chrooted image

I am trying to install a couple of packages in slitaz chrootd image but tazpkg keeps asking for su privilages. I have fallowed this tutorial http://doc.slitaz.org/en:handbook:chroot Host is Ubuntu ...
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1answer
669 views

Keeping users inside their home directory

I have a fresh install of CentOS and I'm currently setting up users. Their home directories reside within /home/username/ and I want to make it so that they cannot ls or cd outside that area when ...
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2answers
3k views

SFTP ChRoot result in broken pipe

I have a website that I want to add some restricted access to a sub-folder. For this, I've decided to use CHROOT with SFTP (I mostly followed this link : ...
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1answer
312 views

SFTP with chroot in a folder that can not have root privileges

I have troubles with setup a SFTP with chroot in "public" folder. Each client on my server has 3 to X accounts. These three accounts are: USER - system account only for internal use, requires full ...
2
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1answer
2k views

Booting linux system from chroot: is there a better way to do this?

I want to set up Grub menu entry to boot into chrooted system (installed chrooted debootstrap to avoid touching existing system too much). Currently I do the following to attain it: Install ...
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0answers
503 views

limits.conf ulimits not being applied to chrooted processes

We allow users to execute scripts on our servers. Our security model involves chrooting them. We want to be able to apply ulimit restrictions to them, and the best way to do it would seem to be in ...
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1answer
786 views

How do you run a server with chrooted Ubuntu on the HP TouchPad?

The problem: servers appear to be broken inside my Ubuntu chroot. No matter what kind of server I try to run, they all seem unresponsive (VLC server won't respond to client, mkRemote doesn't move the ...
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1answer
243 views

Unix chroot questions

I have a few questions about chroot: What are the minimum requirements for chroot? Can you chroot into another Unix OS that has /bin/bash in it? Is it possible for the chroot to run in other ...
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2k views

Can I chroot to a linux environment from windows

I want to know if it is somehow possible to chroot into a Linux system from Windows, or, is there some technique or hack to achieve that?
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309 views

Very limited chroot

I need an absolutely minimal chroot environment that only has a few commands to handle files & directories. No usermanagment or such. Since I want to create such an environment for every of my ...
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1answer
636 views

How to share a directory across chroots

I have multiple chroots with different sets of software version as a light-weight alternative to VMs. How can I share a directory across the VMs? Naturally, symlinks do not allow to escape a chroot. ...