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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10 views

`debootstrap` or `chroot` with `fakeroot[-ng]` instead of `sudo`: is it right or wrong?

Background I wanted to use debootsrap with fakeroot-ng. It started fine, but later on debootsrap stopped with an error and I had a dialogue box reporting tar crashed. However, as I had some ...
0
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1answer
24 views

Remove non-listed click target

I want to write an app for Ubuntu Touch and test it on my Aquaris BQ 4.5 Ubuntu Edition. I failed big time setting it up though and now ended up having no according click target: When I go to the ...
1
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1answer
4k 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 ...
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0answers
16 views

Makeing programs from old Ubuntu in other partition available to new Ubuntu through chroot

I have Ubuntu 12.04 and Ubuntu 14.04 installed on my system. Now i want to access programs installed on my Ubuntu 12.04 from Ubuntu 14.04. I believe such thing is possible with "chroot" command, and i ...
0
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0answers
19 views

Why is install failing?

Reinstalling Ubuntu on an Acer Chromebook all looks well until at the bitter end I get these lines: "Compiling CRAS (I386)... tests/cras_test_client.c:21:26: fatal error: cras_version.h:No such ...
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14 views

Ubuntu SDK - chroot errors creating a device kit

No problem in installing the Ubuntu SDK, but when I try to create a device kit this is what happens: ... ... Processing triggers for ca-certificates (20141019) ... Updating certificates in ...
7
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2answers
2k views

debootstrap failing to mount /proc

I have researched this, and none of the answers (so far) on here, nor googling seem to match my problem. Here is the situation: I am running Xubuntu 12.04 as a base install, and am trying to set up ...
2
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1answer
80 views

Limit SFTP user access to specified directory

I have a Ubuntu 14.04 server installed with open ssh. I'd like to configure sftp for customers to be able to download files only. In other words, I put files in a directory that they are jailed to. ...
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2answers
157 views

14.10 apt-get unable to locate package libopenal-dev in chroot

I'm trying to develop Torque2D on a 32-bit chroot, as there's no 64-bit version as of yet, and it requires libopenal-dev, among other packages to compile properly. I've tried compiling it without it ...
1
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0answers
42 views

OpenSSH chroot breaks ssh and ftp

I'm trying to set up a webserver with a restricted sftp connection. I've googled and followed several walkthoughs that all appear to be pretty much the same thing. Here are my steps: Fresh install ...
0
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1answer
381 views

Upgrade from Ubuntu 12.04 to 14.04 gives black screen and x cursor on startup

I have a Dell 11 chromebook on which I downloaded crouton, and through that, ubuntu 12.04. 12.04 was working perfectly well until I got a message from the update manager asking me to update to trusty ...
0
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0answers
14 views

GLIBC version not found when compiling inside a chroot

I am trying to port the build from CentOS to a Ubuntu machine running trusty in 64 bits. Compiling under 64 bits trusty yield an issue with assembly code compilation, so I compiled using chroot of 32 ...
2
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1answer
87 views

removing chroot done by ubuntu touch sdk

How do I remove all the chroot the Ubuntu touch SDK has made? I can't find anything in the app. When I do a mount from a terminal, I get this : click-ubuntu-sdk-15.04-i386 on ...
2
votes
1answer
35 views

How do I install ChominumOS and run it as a seperate X Session?

I'm exploring different options on how to install ChromniumOS on my desktop (x86_64) PC which is currently running Ubuntu 14.10. I tried the following methods first: Duel Booting the two, but ...
1
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1answer
78 views

after chroot: apt-get update (Err and Failed to fetch - BootableFlashFromHarddiskInstall)

I'm following BootableFlashFromHarddiskInstall tutorial for making a live CD from my current Ubuntu installation. Ubuntu 14.04 on VirtualBox. I checked internet connection of virtual machine as ...
1
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0answers
622 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: ...
0
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1answer
85 views

KDE doesn't start up on Acer c720

My KDE is not starting after using the command sudo startkde I use it all the time and now is not working... Here is the output chronos@localhost / $ sudo startkde Entering ...
0
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0answers
51 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 neet to do the ...
0
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0answers
30 views

User doesn't get gksu dialog so apps just fail

I am using Ubuntu with Xfce on Android in a chroot (via Linux Deploy). When I try to run some software that requires admin/root access the GUI does not prompt me for the admin password like it does ...
0
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1answer
93 views

Install ubuntu server edition into a chroot

Using a chroot with debootstrap you can install, for example, Ubuntu 14.04 with sudo debootstrap trusty /var/chroot/trusty http://archive.ubuntu.com/ubuntu This will, as I understand, install a ...
0
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0answers
25 views

Create a really clean and safe chroot environment in ubuntu

I want to doing some experiment to a linux system. I read about chrooting and debootsrap, it's said that it's needed to do binding mount to proc and dev so the chroot environment will fully work ...
0
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0answers
58 views

Ubuntu on chromebook issue (updated ubuntu now facing problem with sudo startunity)

I updated my ubuntu on chromebook.Now I am unable to load it though crouton.As suggested in some posts I tried to update my crouton 'precise'.But still i am facing the same problem.When i use command ...
0
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0answers
29 views

Is it possible to hot switch between several linux distributions?

I've installed crouton on my chromebook, and I was thinking that it should be possible to make the same thing with my ubuntu desktop. I do not want dual boot, or a virtual system, but several systems ...
0
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1answer
38 views

Cannot access portable disk from (s)chroot jail

I want to access the files in my portable hard disk, so I bind-mount the /media directory to the schroot jail by adding a line /media /media none rw,bind 0 0 to ...
1
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1answer
39 views

Ubuntu 14.10 won't boot after a drive sector was destroyed [closed]

Yesterday, when I was working with my Ubuntu 14.10 (x64) and wanted to save an attachment from an e-mail in Thunderbird, there was a dialog saying that the file could not be written to the /tmp ...
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1answer
139 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 ...
0
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2answers
63 views

how can I confine terminal in a directory as in chroot?

I want to set a particular directory as top directory temporarily. Let's say I open terminal in /home/me/mychroot how can set mychroot directory as top directory for that terminal?
0
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2answers
325 views

Installing Apache Cordova, unable to locate package

Got Cordova installed and able to make an app. I have to run sudo click chroot -a armhf -f ubuntu-sdk-14.10 create to install the Ubuntu SDK, so I can later build to Ubuntu. When I run the command, I ...
46
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2answers
96k 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 ...
0
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0answers
31 views

How to set up apt-get ssh transport with chroot

I want to set up a private APT repository that is only accessible by a shared public key, via the ssh transport. The only problem is, this also gives ssh access to the machine. I would therefore like ...
0
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0answers
32 views

How do I know if I'm in a jail, container, snapshot, etc. environment?

I received a machine (Ubuntu 12.04 server) from a coworker when he left the company. I created my own user as sudo/admin and used the machine for months. After rebooting for the first time since I was ...
1
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3answers
183 views

How do I create a local repository accessible from a local chroot environment for O/S building?

I am interested in building my own custom Ubuntu remix, and have been doing so with the Ubuntu Mini Remix ISO. To do this, I mount the disk image and chroot into it, in a manner similar to this ...
2
votes
1answer
310 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 ...
15
votes
4answers
5k 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 ...
0
votes
4answers
563 views

scripting chroot, how to?

So I'm looking at: https://help.ubuntu.com/community/LiveCDCustomizationFromScratch and trying the following within a bash script: sudo chroot chroot mount none -t proc /proc mount none -t sysfs ...
12
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4answers
53k views

During a chroot attempt, I got this error: “chroot: failed to run command '/bin/bash': Exec format error”

I was following the instructions of this tutorial HOWTO: Purge and Reinstall Grub 2 from the Live CD, when I encountered an error at step 1, as I launched the command sudo chroot /mnt/temp The ...
0
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0answers
11 views

Jailing particular users on login

This whole deal with jails and chroot is a bit confusing to me. They are used to run possibly risky programs securely, but this has to be initiated by the user. I'm looking for how to jail users like ...
0
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0answers
213 views

Change chrooted sftp user default directory

I am using Ubuntu Server 14.04.1 LTS running openssh. I have set up sftp chroot for several users by editing sshd_config like below: add: Subsystem sftp internal-sftp Match Group sftp_users ...
0
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0answers
105 views

Strange boot problem in Server 14.10

This is on Ubuntu Server 14.10. I am setting up a user that is chrooted to its own home directory through SFTP, but I need the user to be able to access/edit a subdomain of my website at ...
0
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0answers
91 views

How to SFTP Jail (chroot) with Active Directory authentication

I am try to set up SFTP with Ubuntu 14.04 using chroot with AD authentication restricting by Group as well as having a public area for users. I already have samba, winbind and kerberos setup as a ...
0
votes
0answers
249 views

Ubuntu iso build debootstrap error chroot/test-dev-null: Permission denied

I am trying to build an ubuntu trusty tahr iso image from the sources. But a get all the time this error message and I don't now how I can solve it. I execute the build script as root. I: Validating ...
23
votes
4answers
33k 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 ...
1
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0answers
40 views

How do I Resolve a dependency issue with Ubuntu SDK, chroot, CMakelists, and the Emulator?

I am trying to build lp:ubuntu-filemanager-app on the ubuntu sdk for running on the emulator. The libraries I need are installed on my system, and in the phablet-shell. I can run the application in ...
0
votes
1answer
447 views

How to migrate from ext4 to zfs root filesystem with separate ext4 boot partition?

I'm trying to change my root partition from ext4 to zfs (simple partition, without ZFS volume management functions) by moving all files in a live system (Ubtunu 14.04) from the ext4 partition to an ...
0
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0answers
31 views

How does package configuration work during ISO installation?

I am creating my own custom Ubuntu 14.04 ISO, with a different set of packages. I am using debootstrap for this purpose, which creates a basic system in a chroot (fakechroot in my case) that is ...
0
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1answer
131 views

debootstrap does not extract libc6, does not create /sbin/ldconfig

I am using dbootstrap to create a chroot root file system (Ubuntu 14.04), so that I can use it later to image another machine. I specify all the necessary packages, and debootstrap seems to retrieve, ...
0
votes
0answers
288 views

setup mod_proxy_fcgi phpmyadmin on apache php-fpm chrooted user

I have PHP5-FPM + mod_proxy_fcgi (chrooted) running on Apache2 (mpm_worker) Ubuntu 14. By this every vhost user is chrooted to there home dir "/var/www/html/domain.com/public_html/". Here php in ...
0
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0answers
26 views

Add Compass, Composer and Sake to chrooted

My Server is running Ubuntu 14.04 with Plesk 12. Clients have access only to a chrooted shell because I don't want theme to go outside their directory. With any other shell they could access compass, ...
0
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1answer
178 views

Recover unbootable Ubuntu, boot-partition gone?

I was unable to boot Ubuntu after setting my BIOS to default. I tried Boot-repair and tried a "recommended repair". After a while it asks me to insert the following in Terminal: sudo chroot ...
0
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0answers
35 views

Where is commands executed in chroot saved?

Any commands typically run in a normal Terminal session is saved in .bash_history. But I've chrooted into an installation according to these instructions, and exited. Later when I chrooted again into ...