a linux command to change the filesystem root a process can see, limiting it's access to the real filesystem root

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How do I boot Ubuntu from a USB on an Acer C720 Chromebook?

I installed Ubuntu using the method described in this video: https://www.youtube.com/watch?v=DMyMqqU2Mqs In short, I installed crouton Ubuntu with the unity interface. and when installing Gimp through ...
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0answers
134 views

Customized sources.list for custom live CD

I recently built myself a custom live CD of Xubuntu 14.04.1. This live CD is used to distribute to my customers to install on their machines with a set of pre-installed applications, some of which are ...
2
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0answers
53 views

How can I set vsftpd user-specific access?

I'm using vsftpd (on 14.04) and I want to set user-specific access: - admin has full access to home folder of all users - standard user (everyone from group "users") has permission only for his home ...
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2answers
320 views

chroot question

I am wondering if there is anyone out there that can explain an error that happens when I try to use debootstrap. sudo debootstrap --arch i386 wheezy /srv/chroot/wheezy http://http.debian.net/debian ...
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0answers
120 views

Issuing in running apache2 in chroot environmet

I am trying to run the apache2 server from chroot environment following this link http://archive09.linux.com/feature/36331. The only difference is that I started the /usr/sbin/apache2 after getting ...
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153 views

Problem running Ubuntu on chromebook

A couple of days ago I bought a ChromeBook and decided to run Ubuntu on it. After a couple of hours on it, I went back on Chrome OS. I usually enter sudo startunity in the developpement console to ...
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1answer
197 views

Jailkit freezing

I'm trying to jail ssh users on my Ubuntu 14.04 server. So after installing Jailkit version 2.17 (with the help of this tutorial) I'm now trying to follow this AskUbuntu answer to use Jailkit. After ...
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0answers
399 views

Ubuntu for Android, Ubuntu for Devices, LinuxonAndroid project for Ubuntu on ARMv7 machine?

I've looked around but can't find any solid solutions or help on this topic. I recently ordered a machine with an ARMv7 CPU (Cortex A-9, <= 1.6GHz, quad core). The machine also has a Mali-400 ...
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209 views

Is it necessary to mount /dev/shm when chroot from Ubuntu Live CD?

Ubuntu is a Debian derivation. Debian squeeze (6.0.0) requires /dev/shm mounting for chroot. I do want to chroot to re-install grub. Does Ubuntu also require /dev/shm mounting for correct chrooting ...
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129 views

LTSP installation step failed

Today I've tried installing an LTSP server on a virtual machine (host : Win 8 x64, virtualbox 4.3.6 r191406 as the newer versions have problems), I gave it an additional NIC as host only. Everything ...
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3answers
410 views

How to enter a chroot without using sudo?

Is it possible to enter a chroot without using sudo? If so, how? I've tried googling, but all I get are results about crouton.
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1answer
143 views

How do I make a chroot clone of my [current setup] like after a fresh install

Where I am... I know that I debootstrap trusty /chroot-dir and then I... mount --bind /dev /chroot-dir/dev && mount --bind /proc /chroot-dir/proc and then cat ...
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1answer
1k views

How to resolve hostnames in chroot?

I try to repair an broken Ubunu 14.04 with chroot. What I did, is to boot Ubuntu from USB mounted the original system that has to be repaired and changed to this system with chroot: sudo mount ...
2
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0answers
365 views

How do I chroot an SSH user to their home directory?

I don't want to use jailkit. My OS is Ubuntu 14.04. I am setting up a user account on my server for a kid I tutor, so he can run a minecraft server. He will be using putty to ssh into my server, and I ...
2
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1answer
1k views

wget inside chroot - cannot verify certificate?

I'm trying to install some packages into a chroot and when getting the key I get these errors: root@devpc:/# wget -O- 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc' ...
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1answer
534 views

Chroot with specific kernel

I need to build some old drivers with specific kernel version. The Kernel 2.6.31-20-generic is needed. I have tried to built it on Ubuntu 12.04 and the new one, 14.04 with no success. The only one ...
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0answers
1k views

LTSP - thin client VS fat client - how does the root folder work?

There is plenty of information on the internet including here, but I could not find a specific discussion on it. Any comment is appreciated. Sorry if it is a very rookie question. I installed Ubuntu ...
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0answers
205 views

Is it possible to compile a kernel module under chroot?

Under a chroot environment, is it possible to build a kernel module without having the kernel installed, just the headers? It sounds like something you wouldn't want to do, but in my case I do. I've ...
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0answers
31 views

Create Jailed Users Using Programing Language

I want to create limited users in my system able to use only few commands. I read this question and jailkit is awesome and do what I want, except one thing creating the users dynamically (via ...
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1answer
49 views

uptart and gnokii and chroot

I try to run this upstart script. # description "" author "" start on runlevel [2345] stop on runlevel [!2345] #chroot /home/ubuntu/ respawn respawn limit 1 1 exec sudo smsd -u ...
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1answer
1k views

Provide an Xserver To Chroot

Description: I'm using a Lubuntu 13.10 X86-64 livecd to chroot into another Lubuntu 13.10 X86-64 located on my hard drive in a folder called chroot. I've had no trouble using the terminal to chroot ...
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1answer
294 views

postfix doesn't authenticate through /var/spool/postfix/var/run/saslauthd

I have a problem with postfix. I followed all description from https://help.ubuntu.com/community/Postfix. And it worked perfect except smtp authentication. I've suffered that mail.log always told ...
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1answer
24 views

installing ubuntu base system in home folder as non-root

I don't have root acess to a server which is running centos. I need a minimal ubuntu chroot environment in my $HOME . (just the apt-get, repositories etc to install packages and run them in terminal. ...
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1answer
1k views

Ubuntu fails to complete chroot setup during installation, how do I resolve this? [duplicate]

I am trying to download Ubuntu using crouton but I keep getting the same error message: Errors were encountered while processing: /var/cache/apt/archives/smbclient_2%3a3.6.3-2ubuntu2.9_amd64.deb ...
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2answers
1k views

Cannot access LAN in chroot

I have a Ubuntu 12.04 x32 running in a Chroot environment (using Crouton) on my Chromebook. It runs perfectly, and can access the internet. However, it cannot access computers on the local network (it ...
0
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1answer
88 views

ARM Chroot installing xfce fails, packages named different

I am trying to install xfce within an ARM chroot, most packages download fine however a handful error out, after looking at the packages in the repo I have found that what apt-get is trying to get ...
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2answers
2k views

ARM ubuntu fails to get certain packages

I have ARM ubuntu running under a chroot and everything seems to be set up and working well, however when I go to install certain packages I end up with failing to fetch errors, this does not happen ...
2
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1answer
125 views

SFTP chroot configuration error

Can anyone see what I have done wrong in this procedure? I can connect to the server as the new user and am in the chrooted directory, but despite setting all the proper root permissions, I cannot add ...
3
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0answers
599 views

Cannot install into target mounted with noexec or nodev while doing qemu-deboot strapping

I'm trying to install the armel version of Ubuntu with qemu-deboot-strap on my desktop X64 system,but I've found this error : $ mkdir precise $ sudo qemu-debootstrap --arch=armel precise ./precise/ ...
2
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1answer
5k views

How to configure SFTP to login in the “/” directory?

I want to login as root and make the / as the default directory in SFTP. Newbie help needed
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1answer
157 views

Sandbox way for linux [closed]

I wonder if there is a kind of a sandboxing solution for linux: when I want to try a software without installing it I get all the .deb files and extract then somewhere, then I do two things: export ...
0
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1answer
19 views

Restricting certain actions in a directory

So i have a web project, its a website that gives certain problems and the users try to find a solution using the C language, the compiling process is done by PHP, what i want to know is how can i ...
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0answers
106 views

Chrooting to a mounted USB Stick using SFTP

I would like to use SFTP over OpenSSH as a small FTP server. However I would like to use a mounted hard drive or USB stick as the chrooted directory for the user. As far as I see, chrooting is ...
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0answers
88 views

Restore permission and ownersip to root/home folders?

I have migrated my system to a new hard disk and backed up my system to an external NTFS volume with rsync- ahv, a oversight and mistake given that NTFS volumes do not support UNIX permissions. ...
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0answers
232 views

X Server crashes when I start Firefox from chroot

I thought to start an isolated Firefox instance in a chroot, but it always crashes my X Server. I tried with different chroot environments (raring, trusty), and tried schroot and plain chroot too. ...
0
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1answer
329 views

Accidentally uninstalled all kernels

I'm running the Ubuntu 12.04 LTS LAMP server. I got an error stating that my root directory was full after running an apt-get dist-upgrade, so following the instructions I found online, I uninstalled ...
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3answers
6k views

What does “${debian_chroot:+($debian_chroot)}” do in my terminal prompt?

In my terminal prompt definition in my .bashrc file, among other things, I have this snippet of code: ${debian_chroot:+($debian_chroot)} What does this do, and do I need it?
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0answers
34 views

Is it possible to upgrade a machine remotely using local system resources?

I'm doing an upgrade on a little Intel Atom "nettop". It's extremely slow and takes somewhere around an hour to do a release upgrade. I'm looking to improve that. This question follows a slightly ...
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0answers
3k views

500 OOPS: vsftpd: refusing to run with writable root inside chroot() Login failed [duplicate]

I have tried: ufw and selinux is shutdown sudo chmod 755 ftp allow_writeable_chroot=YES How to solve the problem?
2
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1answer
1k views

Unable to run executable from mounted flashdrive on Chromebook

I recently got a Chromebook and installed Crouton on it so I can run Ubuntu natively. Since the machine only has 16GB of SSD I decided to get a tiny flash drive that I can keep in it at all times. The ...
2
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0answers
753 views

Why does mounting proc in my chroot fail during debootstrapping?

In a cleanly installed Ubuntu Raring machine I am trying to perform a debootstrap of another system. Here's the exact command: http_proxy=http://192.168.122.1:8000/ debootstrap --arch=amd64 raring ...
0
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1answer
400 views

chroot sftp not able to login

I am trying to set up sftp access on my server and chroot the users into a samba share. When I edit /etc/ssh/sshd_config and add Match Group sftpusers ChrootDirectory /srv/samba/share ForceCommand ...
0
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1answer
622 views

Missing shared libraries when using chroot

I'm attempting to use schroot to run a 32-bit application on a 64-bit Ubuntu (actually Lubuntu) Raring installation. I was successful creating the chroot populated by the following command: sudo ...
2
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2answers
467 views

How to install program from Live-CD chroot?

I am using Lubuntu 13.04. How can I install programs from a Live CD from chroot?
3
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1answer
596 views

How to run `gsettings set` in chroot? [duplicate]

I ran the following command in chroot environment without X: gsettings set org.gnome.desktop.a11y.applications screen-reader-enabled true I get the following error message: (process:8290): WARNING ...
3
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0answers
880 views

What are the differences between jails and chroot?

I'm currently trying to point out the finer details between chroot spaces and jails. And clear up some of the controversy in the phrase "chroot jail." So far I have chroot defined simplistically as ...
3
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1answer
349 views

ssh-agent not accessible within a schroot

I'm using an schroot to do some builds of deployment packages, and there's a lot of to and fro between the host and the schroot environments. Within the schroot the ssh-agent doesn't seem to be ...
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0answers
221 views

Chroot environment can access external, but not internal network

I've just set a chroot environment up on a new 12.10 install, and it seems capable of accessing the external network (Internet basically) but it cannot access anything on the internal network inside ...
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2answers
2k views

Replace XFCE4 with Cinnamon without Log-In Screen

I have a Google I/O Chrome Pixel that I've been playing around with Crouton. This is my frist real shot at Ubuntu and have made the upgrade from 12.04 -> 13.04. Using chroot I can run both Chrome OS ...
2
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1answer
432 views

How to replace /lib/modules in chroot?

I have mounted my system where my modules were accidentally deleted, ALL of them, all of the OLD ones, and the most recent ones 3.2.41. I have mounted my system and I'm chroot and I don't know what to ...