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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How do I run chromium inside a chroot?

Okay, I can run Iceweasel 17 ESR fine and some simple X apps like xkill, so I know that it's not merely an X display problem. However any version of Chromium and Iceweasel 24 fail with the following ...
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1answer
1k views

suexec with chrooted environment

I'm trying to get a chrooted Apache environment working running mod_fcgid with suexec. Looking at suexec log inside jail, the wrapper scripts are being executed with no problems, however, when I look ...
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votes
1answer
3k views

Chroot gone wrong, can't ssh with user

Distribution: Scientific Linux 6.5 (Carbon), not exactly your typical brand of linux. Tried to chroot a user using these instructions for SSH and quite obviously failed, and now I can't even log in ...
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1answer
95 views

How to write in home user with chrooted sftp

I have a problem with chroot sftp an their home folder. I would like to write in user's home but I don't have proper permission for doing that. sshd_config Match User demo ChrootDirectory %h ...
2
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1answer
1k views

Any better alternative to chroot on an OpenVZ VPS?

Are there any better alternative to chroot environment? I'm thinking about running nginx on a jailed environment. BTW, I'm on OpenVZ VPS, so modifying the Kernel is a no-no. (I think that prevents ...
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23 views

SSH with chroot and only working “sftp”, “rsync” (both)?

I have two users and one shared folder in my Ubuntu server: User writer, which has write access to /var/shared. It's an application regularly making file changes in this folder from remote, with SSH ...
3
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22 views

chroot and hyperos on ArchLinux?

hyperos is a fork of tinycorelinux Can I run hyperos in a chroot? How can I create an ISO image from files on repo? Is this possible? Which steps should I follow?
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241 views

Sound output not working properly in chroot

So I have a 64-bit Linux Mint 17 system and I am trying to set up a chroot environment with a 64-bit Ubuntu 12.04-based system (actually something called Vinux, an Ubuntu remix). The problem is that ...
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606 views

Running (X) Xfce4 in Debian chroot

I was trying to start Xfce4 in a chroot. The problem is that Xfce4 starts, shows default the UI but the USB keyboard and mouse are not working. My chroot script: #!/bin/bash mount --bind /dev /srv/...
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668 views

remount chrooted read-only subdirectory (non-mountpoint) to read-write from within jail?

I'm trying to do the same of this question (multiple linux installation on same filesystem) but I get this result (root filesystem mounted as read-only) . I'm using debian/sid, have successfully ...
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0answers
710 views

Slow system after running a KDE GUI application from a Debian Squeeze chroot

I have a PC with Ubuntu 11.04 and a Debian Squeeze chroot installed in it. As soon as I start any KDE application from within chroot (and installed there), e.g. Kompare for viewing git diff output, ...
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131 views

Restrict SFTP users to different directories

How can I restrict some users/groups to some directories? I mean different users, different directories. What I have: Ubuntu 14. Experience with Ubuntu: Just started. What I have tried: I read ...
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133 views

running cron on a chroot

For my web development I use a debootstrap'ped Debian with sysvinit, I start apache2/mysql manually only when I need to work. Now for a new project I require to run some scheduled task for which I ...
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votes
0answers
294 views

User Acces restrict to only one folder

I am trying to establsih SFTP User rights at a server to only one folder, following the guidelines here: http://www.esotech.org/resources/software/linux/creating-an-sftp-unix-group-with-chroot-...
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0answers
419 views

How to use chroot'd desktop environment on Android with external display, mouse and keyboard?

I have a chroot'd Arch Linux environment set up on my Android phone (a OnePlus One) and I would like to connect it to a monitor (directly or with use of some sort of passthrough/adapter eg. Raspberry ...
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0answers
166 views

How to find current chroot jail path on Linux <2.6.26

While running kernel 2.6.26 or newer it's possible to get the path of the current chroot jail by comparing the mountinfo of the current process and the init process. Is there a way to get the same ...
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18 views

setting up sftp users only second instances of sshd

I created second instances of sshd called sshd-sftponly and using different port (e.g 2222 ) and made all necessary changes in /etc/rc.d/init.d/sshd-sftponly and /etc/ssh/sshd_config-sftponly ...
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26 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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53 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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40 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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35 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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60 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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232 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

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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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 /dev/...
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91 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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88 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 ...
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152 views

Android chroot Debian

I have a armv7l embedded device with 3 usb ports and a sd card slot. The OS of the device is android with a Debian OS in chroot. Via the Debian I can ssh into the device and breakout the chroot to ...
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71 views

Linux: how to run a program with rw access to only a folder

How can I execute a program in a way that all the system is RO and only some folders are RW? Eg: steam (:P) roexec --rw ~/.steam steam Is there any tool that allows me to do this? I've tried mount ...
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355 views

Is there a “supported” way in RHEL/CentOS 7 to union-mount a directory tree on top of an NFS mount point?

I have an NFS share containing almost 500 chrooted (s)ftp user's home directories. This NFS share is mounted on several FTP servers forming a highly available FTP cluster. I would like to enable ...
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0answers
105 views

Debootstrap for Backbox Error with release file

I'm trying to install a BackBox (Ubuntu based) chroot environment with debootstrap using the following command: sudo debootstrap --variant=buildd --arch i386 trusty /MYJAIL/ http://ppa.launchpad.net/...
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262 views

How can schroot works with aufs

I'm using schroot with aufs. Currently, my conf file under \etc\schroot\chroot.d looks like [trusty_chrome] description=Ubuntu 14.04 Trusty running Chrome and Adobe Flash directory=/srv/chroot/...
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0answers
37 views

Chrooting any arbitrary program using dynamic linker?

One of the problems using chroots is getting all the binaries and libraries installed. It just occurred to me that there might be another way. The TSocks project uses a technique they call "shared ...
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0answers
285 views

How to send a running process to jail?

"Go directly to jail; do not pass go, do not collect $200" — Monopoly Is there any way to make a running process's all future file access behave as if it has always been in a chroot environment?
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13 views

Cannot `arch-chroot` to an exising system, “failed to run command '/bin/sh' : No such file or directory”

I run into my system problem with the current Arch Linux, and it turns out to be caused by the F2FS file system (crc32 module not found during boot). I was attempts to fix it, but I've got stuck when ...
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votes
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39 views

KVM on Crouton chroot?

I've enabled Vt-x support in BIOS, and have been trying to get KVM on my chroot for a few days now. I lost my chroot last night (got it into an unbootable state) trying and had to build a new one. ...
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votes
0answers
21 views

How to configure vsftpd to use /opt/etc/passwd to authenticate

I have FTP setup on Solaris 8 and I am trying to migrate it to RHEL7. Present Architecture on Solaris FTP daemon is chrooted under /opt. When users try to login to FTP, they are authenticated with /...
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0answers
18 views

chroot into a Linux with X window system installed, from a Linux without X window system, and then run xinit, there is no mouse and keyboard working

I have two systems on my machine. One is Ubuntu and the other one is Linux from scratch (LFS) which I built it my self. Ubuntu has X window system installed but LFS has no windowing system whatsoever....
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26 views

Installing specific version of python and its dependencies in chroot enviroment

I'm trying to install python from source on chroot environment in CentOS 7.1, If I'm using ./configure --prefix=/chroot but I need to find the dependencies and copy them to chroot directory also, How ...
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109 views

Directory does not exist inside the chroot

I'm trying to setup an ubuntu scope project using the setup wizard from the ubuntu sdk ide. The last step in this wizard is to run cmake, but I get the following error: E: Failed to change to ...
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0answers
69 views

file permissions is getting differed with the umask value while using sftp

I have set up the jail rooted sftp environment on port 222 with umask 0002. I have created the jail rooted user whose home directory is on nfs mount point. When I have tried to upload the files , I ...
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168 views

bash errors getcwd: cannot access parent directories

I cross-compiled GNU bash v4.3 but am now getting errors related to: shell-init: error retrieving current directory: getcwd: cannot access parent directories: Function not implemented and chdir: ...
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22 views

Creating Ubuntu Gutsy chroot on Mint 17.1 fails to download Packages.bz2

I am trying to create a chroot to Ubuntu 7.10 on host running Linux Mint 17.1 64-bit. For that, I first created an entry in /etc/chroot/chroot.conf [gutsy] description=Ubuntu Gutsy location=/genera ...
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48 views

Running a DE in chroot?

I'm looking to run a desktop environment inside of chroot using Xnest. So far I've gotten Xfce to work but everything else not so much. Both cinnamon and gnome fail to run. Cinnamon gives me this ...
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87 views

Is possible to have full guest system under host installed via DebootstrapChroot?

My goal is installing Ubuntu 14.04.2 LTS under Debian 7 wheezy with full GNOME Desktop. I know I can use use tools like VirtualBox etc. but it seems like overhead. To be more precise under this Ubuntu ...
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0answers
301 views

restrict ssh access to /bin and using bash as a shell

I want to restrict my admin user to /bin directory while permitting to use bash as a shell via ssh. This is in my sshd_config file: Match User admin ChrootDirectory /bin X11Forwarding no ...
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0answers
70 views

Are system calls available in a chroot environment?

I'm experiencing a lot of compilation errors regarding missing system calls (e.g. error: '__NR_name_to_handle_at' undeclared (first use in this function)) with different projects (ganesha 2.1.0 (https:...
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253 views

Creating a Safe Web Server

Web server hosts multiple websites. Multiple users update each website. User home directory /home/user1 /home/user2 Web directory /var/www/site1 /var/www/site2 Each user uses SFTP to upload ...