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

learn more… | top users | synonyms

1
vote
0answers
95 views

Auto-passphrase in schroot: can't connect to `/run/user/korn/keyring-x30g9r/gpg

when running "debuild -S -sa" to create the source files and sign them in Ubuntu 12.04 I only had to enter my passphrase once and then it is automatically used to unlock my private key on future runs ...
2
votes
1answer
817 views

Can't chroot to recover Ubuntu 64 bits

I was trying to get steam for linux to work on my Ubuntu 10.04 LTS 64 bits system. I installed these three (some 32 bit) packages: http://packages.ubuntu.com/quantal/libc-bin ...
1
vote
1answer
133 views

Compile AMD athlon-xp 32 bit kernel in intel 64 bit machine

Can someone tell me how to compile linux 3.7 kernel for amd athlon-xp in a 64 bit intel environment through chroot? I tried setting up a chroot environment but compilation gives me error. Thanks to ...
0
votes
1answer
322 views

How can I change folder permissions in a luks encrypted partition

I have a folder in a luks encrypted partition /media/user/luks-partition/folder on Ubuntu 12.10. I am not able to change folder's permissions. I tried using the nautilus gui and chroot both as ...
1
vote
0answers
43 views

Is there a good ssh jail solution for Ubuntu 12…? [duplicate]

Is there a good how-to/tutorial on setting up a chrooted ssh environment on Ubuntu 12.04LTS. I'm NOT interested in chrooted sftp which is easy to implement. It's jailing users in their home ...
1
vote
0answers
36 views

Can anyone recommend a good chroot ssh tutorial/ how to for Ubuntu 12.04 LTS [duplicate]

Possible Duplicate: Simplest & Easy Way To Jail Users I'm looking for a good how-to/tutorial on setting up a chrooted ssh environment on Ubuntu 12.04LTS. I'm NOT interested in chrooted ...
1
vote
1answer
1k views

Using Chroot with a Java application

I'm working on designing a group of Java programs that I hope to turn into a Java-based OS someday. Until I get a kernel working, I want to just run them on top of Ubuntu. Because of this, I need all ...
0
votes
1answer
191 views

How do I move the mount point of a drive

I have /dev/sda2 mounted as /mnt. I am actually running my system from a volume mounted at /mnt/install (I've chrooted to /mnt/install). I'd like to be able to use that disk from within my chrooted ...
0
votes
2answers
10k views

vsftpd - restrict users to home directory

Setup vsftpd easily If I run this config: listen=YES anonymous_enable=NO local_enable=YES write_enable=NO dirmessage_enable=YES use_localtime=YES xferlog_enable=YES connect_from_port_20=YES ...
3
votes
2answers
1k views

Video driver under lxc container?

Since LXC (Linux Containers) is a kernel level super-chroot, I've been wondering what sort of video driver the containers have: My host is Ubuntu 12.04 64-bit machine with ATI gpu. Will the LXC ...
0
votes
0answers
236 views

ltsp: fat client with motion -> dropbox upload

I would like to install motion on my ltsp fat clients, which actually works well. What I don't know is how to upload the created files via dropbox. Can someone point me in the right direction? I ...
1
vote
2answers
1k views

How to add user to separate filesystem (Armel)

I'm trying to work out how to add a user to a separate filesystem, as described here, specifically point 5: Add a local user and password for the user, then add the user to the adm and sudo groups. ...
1
vote
0answers
573 views

Debootstrap chroot Installation Error

During initial installation (using both Network installation and CD ISO) of Ubuntu Server 12.04.1 LTS (64-bit) as a guest VM on XenServer 6.1 I'm getting this error: Debootstrap warning Warning: ...
3
votes
1answer
326 views

Need to write a script that will jailkit a user and give them access to a particular website directory

I have a ubuntu 12.04 app server hosting a few websites. We need to give access to the developer to only be able upload files to one of the websites. I have installed Jailkit but can't seem to find ...
1
vote
2answers
899 views

Is chroot the right choice for my use case?

Backstory: I am working on setting up a MineCraft server and want to allow admins to have ssh access to the MineCraft server console and appropriate mc server files, but not the whole system. The ...
1
vote
1answer
1k views

How to install Ubuntu in a chroot environment on an Archlinux system?

Currently I'm stuck with an Archlinux system at work. However, I want to be able to package some software for Ubuntu on this machine. So I thought it should be possible to set up an Ubuntu (Precise) ...
36
votes
3answers
5k views

What are the differences between sudo, su, visudo, chroot, and gksu?

What are the differences between sudo, su, visudo, chroot, and gksu ?
1
vote
0answers
297 views

How to rsync a chroot without breaking symlinks? [closed]

I'd like to rsync (backup) a chroot environment from outside the chroot. For that I first make a lvm snapshot of the chroot volume and then run rsync on that. The only problem with this approach: ...
0
votes
1answer
398 views

How to start service in a chroot independently of the host system?

I'm using chroot to create ARM Ubuntu installation from Ubuntu Core image. If I mount /proc and /sys all started services intercept with host system (trying to restart dbus is the worst thing it have ...
1
vote
1answer
270 views

A specific user is unable to log in to vsftpd

I am setting up a new user let his name be ftpguy. He has access to only one directory /var/www/xxx. I have already chowned the directory so that he has write and read privileges. The user is also ...
0
votes
0answers
278 views

a serious GRUB issue

Everything went on well. Today morning when I rebooted my workstation, I was appalled by the grub rescue screen that appeared on boot up. I could not guess what could be the reason for this. Trying to ...
0
votes
2answers
183 views

Customizing 12.04 from terminal

I recently read a blog post on customizing Ubuntu 9.04 (I believe) via the terminal. It explained how to download all the Linux base packages and create a Linux distro inside of a directory and then ...
1
vote
1answer
1k views

How to install java inside a chroot?

I want to execute a java program inside my debootstrap-chroot on an ubuntu machine for which I need to have java installed inside the chroot jail. I tried to install it using : apt-get install ...
1
vote
1answer
3k views

Network Manager missing after update: no connectivity

After an update and restart, I found that the network icon on the top is missing and so, I cannot connect to LAN, wifi, USB modem, nothing. Now, I am booting from a Live USB, then chrooted to my ...
5
votes
1answer
2k views

How do I add more variants or custom packages to debootstrap?

I have a set of packages that I wish to install along-side the minibase variant in debootstrap. I'm having the hardest time figuring out how to customize variants so that more than just the base is ...
5
votes
2answers
2k views

Upgrading Ubuntu chroot environment?

What is the proper way to upgrade Ubuntu chroot environment to a newer Ubuntu release? The chroot environment has been originally set up using debootstrap. The proper way to upgrade a Ubuntu server ...
2
votes
6answers
879 views

What exactly is a chroot? Is it similar to a simultaneous dual boot?

It has been suggested to me that the use of a chroot might solve my problem of building an application that must run on an embedded device. I have inferred from this description that it is somehow ...
15
votes
4answers
4k views

How do I stop all processes in a chroot?

I have a number of LVM partitions, each containing an Ubuntu installation. Occasionally, I want to do an apt-get dist-upgrade, to update an installation to the most recent packages. I do this with ...
4
votes
1answer
1k views

What is the difference of chroot, dchroot and schroot?

What is the difference of chroot, dchroot and schroot? What do they have in common? Where are the differences? Which one is needed for what?
2
votes
0answers
134 views

How I can run Android 4.0.4 in chroot on Ubuntu 12.04 on the Pandaboard ES?

I want to run fully functional Android 4.0.4 on my Ubuntu 12.04 installation on the Pandaboard ES with the LXC containers.
4
votes
2answers
2k views

How I can run ubuntu in chroot on Android?

I want to run fully functional Ubuntu on my Android device in chroot. But I have some trouble with upstart. In chroot "it will actually run /sbin/telinit", so how i can run upstart or replace it with ...
1
vote
1answer
408 views

How do I update other Ubuntu partitions without rebooting into them?

I have a number of Ubuntu partitions on my computer. This allows me to run previous, current and development versions concurrently. I'd quite like to install updates to the other partitions, without ...
4
votes
1answer
100 views

Fake program runtime environment

Is it possible to run a program in a fake environment? I have a tool that requires a certain folder to be in /mnt/cdrom. I have the all the files from that cdrom stored in another folder, say ...
0
votes
1answer
586 views

Changes to user's home directory not updating

I've just made changes to a user's home directory (using usermod -d) - but I'm still going to the old directory when I login (via sftp). Do I need to restart a user service to pick up these changes? ...
40
votes
2answers
81k views

How can I chroot sftp-only SSH users into their homes?

I want to give a client access to my server, but I want to limit those users to their home directories. I will bind-mount in any files I want them to be able to see. I've created a user called bob ...
2
votes
4answers
3k views

Why does the sudo command not work in chroot?

I just installed a 32-bit chroot to run on my 64-bit system. In the chroot environment, the sudo command doesn't work, it says sudo: command not found Also, when I try the su root command, my ...
1
vote
2answers
82 views

Network Problem While Reinstalling Grub

I'm trying to reinstall grub on a second disk, following the instructions at Purge & Reinstall Grub. After doing sudo chroot /mnt, when I attempt apt-get update, I get lot of failed to fetch ...
3
votes
1answer
1k views

Install program from source to chroot env

I have an program source (Remmina) and want to install it to chroot environment. Remmina uses cmake system. I can install it to chroot using: sudo make install DESTDIR=mychroot but this is not ...
0
votes
3answers
580 views

Servers running from chrooted Ubuntu on 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 ...
22
votes
4answers
29k views

Simple & easy way to jail users

I need a simple and easy way to jail users in their home directories in Oneiric. Do you have a simple configuration for jailing users, with full help, or some good web links? I would be offering an ...
7
votes
2answers
265 views

How do I create a chroot of an earlier version of Ubuntu?

I'd like to create a virtual instance of the latest LTS so I can test the software I'm writing in a way that more closely matches our production environment. There seem to be many, many different ...
3
votes
1answer
1k views

How to chroot into persistent installation?

To chroot into 'normal' installation requires just mount of common /, /proc, /sys and /dev to do normal administration tasks. But how to proceed with so called 'persistent' installation (see here)? ...
3
votes
1answer
1k views

Install FTP server with support for virtual users

I'm trying to install an FTP server on Ubuntu 11.04. I've installed vsftpd, but I had no success in getting it to work with virtual users. I want to be able to have give fake users and direct them to ...
5
votes
1answer
2k views

How to chroot Ubuntu+1?

What is the recommended way to use chroot from Ubuntu Stable (in my case 11.04) with Ubuntu+1 (11.10)? Linked (but probably separate) is "Is there anything special that I need to do in order to get ...
3
votes
1answer
973 views

upgrade a kernel when in chroot. how to?

I am trying to build a custom cd using uck. Now, i want to upgrade the kernel, remove the old kernel and then create the iso. I am able to upgrade the kernel but I am not able to switch to the new ...
2
votes
1answer
647 views

Clean up Chroot

Is there way to quickly clean up or revert your chroot to its previous new state, without reinstalling or re setting it up, so I could start fresh again?
1
vote
1answer
3k views

How to get pulseaudio working from chroot? [closed]

I've got a chroot environment with the same architecture as host environment. I'm trying to get apps from chroot be able to play sound with PulseAudio. I've tried the tutorial from Arch Wiki and ...
11
votes
2answers
47k views

How to setup a SFTP server with users chrooted in their home directories?

I have been trying to set up a SFTP server with multiple users chrooting into their home directories. I followed the advice on this guide and then executed the following commands on the user's ...
1
vote
1answer
229 views

Libraries used by C# executables

I am having a problem when I try to run C# executables (compiled with mono C# compiler at 10.10 server) inside a chroot jail. In order to run the executable inside the jail I need to include the ...
2
votes
2answers
1k views

using DNS lookup in chroot postfix

I'm trying to set up a postfix set up on my client machines. All machines should use a central ldap directory for common postfix (e.g. aliases, etc). But since postfix runs in chroot postfix is unable ...