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

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3answers
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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 : http://shapeshed.com/...
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2answers
3k 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 tmp/tarball/opt/...
2
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2answers
2k views

How to change root device?

I want to be able to change the root device, say from sda to sdb, so that I am able to remove sda. I don't believe this is possible with chroot, as I am changing the root folder to a mount point that ...
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2answers
845 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 they'...
4
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1answer
130 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 ...
3
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1answer
409 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 ...
1
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1answer
172 views

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 ...
1
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1answer
112 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 ...
1
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1answer
158 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 (...
0
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1answer
86 views

SFTP chroot: sshd_selinux_copy_context: getcon failed with Permission denied [postauth]

I'm stucked with creating SFTP chroot. I'm able to log in, but i'm getting "Permission denied" whatever I try. sftp webadm@<ip>: webadm@<ip>'s password: Connected to <ip>. Changing ...
0
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1answer
32 views

How to Access `/dev` From Inside a `chroot` Jail?

     How can one access /dev from within a chroot jail? I'd like to know how to do this on OS X v10.11.5 'El Capitan,' in particular. I've already tried to create an ...
0
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1answer
37 views

openssh with virtual users and chroot

I'm looking for a way to run a opensshd offering sftp to users as a unprivileged user e.g. on port 8022. This opensshd should take something like a customer passwd file which can include information ...
0
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1answer
41 views

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 ...
0
votes
1answer
34 views

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 ...
0
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1answer
107 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 ...
0
votes
1answer
307 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 ...
0
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1answer
296 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 systemd-...
0
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1answer
132 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 (...
0
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1answer
184 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 ...
0
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1answer
337 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 /var/lib/apt/lists/...
0
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1answer
595 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 '...
0
votes
1answer
92 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. ignite@ignite:~/...
0
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1answer
142 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 ...
4
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0answers
244 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 use,...
2
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0answers
1k 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 ...
2
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0answers
37 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 ...
2
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0answers
154 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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0answers
22 views

How to sandbox code in chroot for multiple users?

What am I trying to do? I'm writing a code evaluator using chroot and python and went to hackerrank for some inspiration. What I think is happening at Hackerrank? Hackerrank creates run-...
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0answers
19 views

exiting chroot leads to getpt failure

On a Debian Jessie machine I have a rootfs image which I chroot in this way: mount myimage.img /mnt/myimage cp /usr/bin/qemu-arm-static /mnt/myimage/usr/bin/ mount --rbind /dev /mnt/myimage/dev mount ...
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58 views

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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0answers
39 views

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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0answers
268 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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0answers
79 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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0answers
25 views

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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0answers
281 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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0answers
882 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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0answers
766 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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0answers
729 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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0answers
60 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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0answers
81 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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0answers
6 views

Add git access to /bin/bash (chroot) on Ubuntu, using Plesk

I have a couple users who wish to use git, they are allowed shell access but are chrooted into their own directory. I assume there has to be a way without exposing options to any shell at any level to ...
0
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0answers
30 views

New Linux Subsytem on Windows, can we chroot?

I want to chroot into my existing Ubuntu Gnome 16.10 from new windows insider bash. the Main problem is there is no output for lsblk or blkid. so I tried "Paragon EXT4 drivers" and "ext2fsd" to ...
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0answers
11 views

ls command output not in ansi 16 colors in chroot

I am using chroot to work on a Centos 6.x machine. However I find that the ls output comes as the standard blue green color not the ANSI 16 colors configured. Is there a reason why it doesn't take ...
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0answers
14 views

Code Execution From Live USB's

For the purposes of education, I am trying to work out how to execute code onto a hard drive that has been mounted onto a Linux live USB. So far I have downloaded a copy of Ubuntu, and just run the ...
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0answers
35 views

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 ...
0
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0answers
166 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 ...
0
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0answers
360 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 $...