The LXC tag is for questions relating to LinuX Containers and lightweight virtualization capabiliaties, issues, and troubleshooting.

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4
votes
1answer
302 views

Juju deployment fails due to “container failed to start” error

I had tried to deploy mysql and i had this error: agent-state-info: container failed to start Outputs from log as following: Line 47: machine-0: 2014-08-14 02:02:30 INFO juju.state.api ...
3
votes
1answer
180 views

per user lxc containers

I am sure I saw how to do this on a webpage around the intergoogle somewhere. But Is it possible to have your system setup so when you create a user on your machine they log into their own LXC ...
1
vote
1answer
57 views

Apt-get fails to fetch inside an LXC container

I have an Ubuntu 14.04.1 LTS server that's running LXC containers. The containers run Ubuntu 14.04.1 too. Network config of host is pretty standard, static IP, ISP's DNSes (IP1/IP2) plus google's : $ ...
1
vote
1answer
64 views

Can not clone lxc container with lvm backingstore after ubuntu update

Command lxc-clone -s -K -M -H -o debian7 -n debian7-bak Result lxc_container: bdev.c: mount_unknown_fs: 209 failed to determine fs type for '/dev/vg/debian7' lxc_container: bdev.c: detect_fs: 320 ...
1
vote
1answer
78 views

LXC start error : setup_caps: 2337 unknown capability mac_admin

When i try to start the lxc container created it fails with below error, I have used the Ubuntu template for this template. It seems lxc is unable to drop the kernel privileges it is trying to drop, ...
1
vote
1answer
68 views

How to get access from nginx on host OS to files inside lxc-container?

I have Ubuntu 14.04 and lxc-container inside it. Both of host OS and container have nginx 1.4.6 installed. Container has ip-address 10.0.3.100 and located in ...
1
vote
1answer
113 views

How to make a HDD device file /dev/sdxY available in lxc container?

I created a lxc container with sudo lxc-create -n ubuntu-trusty-amd64 -t ubuntu -- --arch amd64 --release trusty on Ubuntu 14.04 with lxc 1.0.5-0ubuntu0.1 and realized that there're no device files in ...
3
votes
0answers
322 views

apt-get in LXC container is very slow on Ubuntu Server 12.04

I haven't had much luck in finding out the source of the issue, whether this "issue" is simply a limitation of LXC or zfs, or whether this issue is specific to Ubuntu. The issue is quite simply that ...
3
votes
0answers
1k views

“Can not write log, openpty() failed (/dev/pts not mounted?)”

I used this post to install LXC. The installation is success and creating the container complain give this message: "Can not write log, openpty() failed (/dev/pts not mounted?)" but in the end ...
3
votes
0answers
331 views

A Linux container can use an authorized_keys file outside my home directory, but ephemeral containers based on it can't. Why?

In Ubuntu 12.10, I've created an LXC of type 'ubuntu' using the lxc-create utility. I then create ephemeral containers based on this container using the lxc-start-ephemeral utility, and I need to ...
3
votes
0answers
229 views

How do I get the VT running X in my LXC container to my host?

I'm trying to run Lubuntu within an LXC container on my host already using a GUI. Is it possible to redirect the X output from the container to say; VT9 rather than VT7? If so where is the VT7 ...
3
votes
0answers
478 views

How to create dm-crypt device in LXC?

On one LXC container I need to put sensitive data, preferrably stored in dm-crypt encrypted filesystem. When I write sudo cryptsetup luksFormat --cipher aes-xts-plain --size 512 ...
3
votes
0answers
136 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.
2
votes
0answers
125 views

LXC bridging with two NICs

I am setting up a server to host a number of LXC containers, for now just isolating web and db services. The server I am using has two NICs and I'd like to use one for host traffic and one for ...
2
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0answers
466 views

Modifying sysctl values inside lxc container

I have made several linux containers using the normal userspace tools (not docker), and I have been setting up a test environment. I want to set up two containers to try out heartbeat, which requires ...
2
votes
0answers
97 views

net_cls and ns subsystems not available in 12.04?

I'm playing around with cgroups and I noticed when I try to list all available subsystems that the network ones are not available ? Running the following command should list ALL available subsystems - ...
2
votes
0answers
676 views

Another LXC Puzzle

So my server is running... Distributor ID: Ubuntu Description: Ubuntu 13.04 Release: 13.04 Codename: raring I stumbled onto lxc when I trying to find something to replace vmware on a small ...
1
vote
0answers
104 views

Mount qcow2 image using qemu-nbd within a container

I'm trying to get an OpenStack Nova compute node running within a container to boot a server in a nested container. Everything works fine until I ask Nova in the controller to boot the server. During ...
1
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0answers
80 views

Openstack Juno Trusty LXC

This is a follow up on Juju Icehouse-Openstack LXC. It seems that Trusty and Juno combo also do not allow LXC instantiation, i.e., Changing "virt-type" in nova-compute charm does not change ...
1
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0answers
130 views

Creating LXC container using iso file

Is it possible to create an LXC container from iso file? Following points might give you better context about what I want I have created my own distro by following "How to create customized ubuntu ...
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0answers
128 views

Autostart Unpriviledged LXC Containers

I'm using Ubuntu 14.04 and have installed LXC normally. I've followed the official LXC documentation to set up unprivileged containers under a non-root user. These don't seem to support LXC's ...
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0answers
768 views

LXC container no outgoing traffic with bridged network and public IP address

I try to setup a LXC container with bridged network on ubuntu 14.04.1, but the outgoing traffic seems to be blocked. Ping another IP than the container's one is not working. Actually I tried this with ...
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0answers
59 views

How to enable loop dev access from LXC?

I added the following line to the LXC container's config file in order to enable access to loop dev. The LXC is running Ubuntu 12.04: … lxc.cgroup.devices.allow = b 7:* rwm … However, the container ...
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0answers
505 views

setting macvlan bridge for lxc containers

I am trying to create containers which can be accessed from outside. So i've chosen the macvlan mode of networking which can assign an IP to the containers in the same network as the host. I have ...
1
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0answers
57 views

unable to create more than one device with dmsetup inside lxc

I am using lxc for running encryption app.  The app run "dmsetup" on devices added in the container/VM. On running the "dmsetup create clear_sdb1" the device gets created as /dev/mapper/clear_sdb1  ...
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0answers
435 views

How to store LXC container's files in another folder

Well the answer seems to be given on https://help.ubuntu.com/13.04/serverguide/lxc.html#lxc-hostsetup page under Using a separate filesystem for the container store title but it doesn't work for me. ...
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0answers
185 views

How to log into lxc container?

I recently installed the 32 bit lxc container on a 64 bit Ubuntu 12.04 system. When I run the command sudo lxc-start -n my32bitbox I am greeted with a login prompt. I enter the default login and ...
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0answers
32 views

update lxc in ubuntu server

I have installed lxc-version 0.7.5 by apt-get update apt-get install lxc Now I want to update to either lxc-0.8.0 or lxc-0.9.0. How can I do this?
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0answers
731 views

LXC on Precise with linux-image-generic-lts-raring … do I get the full namespace support?

Kernel 3.8 adds full namespace support, as far as I am aware. The package linux-image-generic-lts-raring ("Raring Ringtail kernel") offers this on Precise Pangolin installations (screenshot): Older ...
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0answers
79 views

What facets should I consider when deciding which guest to jail in (“full”) KVM and which in LXC?

Currently I am migrating to a new server. The old one ran 10.04 as host system and a few more 10.04 and Debian 6 as KVM guests. This was alright, because the processor had support for virtualization. ...
0
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0answers
13 views

How could I set a file overlay on my whole system?

I need to build and test system components on my Ubuntu laptop and I want to be sure that it won't damage (or replace any my current components) (I plan to build and test gtk, gstreamer and ...
0
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0answers
12 views

Container lxc has two IP: One of them is bridge's. When connect with juju, connects to bridge's

If I install OpenStack with openstack-installer (autopilot) and the bootstrap for the first environment is launched over the VM that comes with openstack-installer pachage ...
0
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0answers
21 views

Can't bootstrap juju in lxc environment

I am using LXC to make JUJU. But when I bootstrap : Bootstrapping environment "local" Starting new instance for initial state server Building tools to upload (1.21.1.1-trusty-amd64) Installing Juju ...
0
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0answers
10 views

Is it possible to use both libvirt and lxc userspace tools?

Libvirt is pretty easy to use and has the bonus of having cross compatibility with other hypervisors. I was curious, is it possible to create a container and manage it with both virsh and lxc-* ...
0
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0answers
35 views

Why is my cgroup size so small, how to fix?

I'm trying to build some Docker images, and I get an 'out of disk space' error. 2014/12/04 14:42:48 write /sys/fs/cgroup/devices/docker/10860.../devices.deny: no space left on device Looking at ...
0
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0answers
232 views

Systemd, cgroup, and LXC

After much trial and error, I was finally able to get Spice working in a Fedora LXC container under Ubuntu 14.04. However, the same can't be said of an Ubuntu 14.04 container. It appears that the ...
0
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0answers
50 views

WINE programs/processes isolation

I would like to completely isolate from each other two Windows programs running in WINE. I intend to block them from sharing memory, interprocess communication, files and using any possible ...
0
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0answers
82 views

Enabling systemd in Ubuntu 12.04 lxc container

Following is my setup I am running Ubuntu 12.04.1 Precise. I have and lxc container on it running upstart. I want to replace upstart with systemd. I modified the container's lxc with "virsh -c ...
0
votes
0answers
129 views

MAC address NAT with ebtables for IPv4 and IPv6?

I have a virtual machine running in VMware. It has Ubuntu 14.04 on it. I want to install LXC containers on it, and have them use the same address space as the virtual machine. So, I created a bridge ...
0
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0answers
122 views

Problem with NAT port forwading to LXC container

I have been trying to implement an instance of nginx in a LXC container on Ubuntu 14.04 as per https://www.digitalocean.com/community/tutorials/getting-started-with-lxc-on-an-ubuntu-13-04-vps Can ...
0
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0answers
43 views

How to get HDMI sound devices inside LXC?

I created LXC container in 12.04.3 Server and installed Gnome Display Manager to it. Now GDM works well, but I don't have HDMI sound. ubuntu@quintilis:~$ aplay -l aplay: device_list:252: no ...
0
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0answers
72 views

CentOS lxc on Ubuntu 12.04

I am trying to use CentOS 6.5 lxc on Ubuntu 12.04, but I have problems with installing rpm package on CentOS. Here's the error: [root@pgr ~]# rpm -ivh ...
0
votes
0answers
82 views

Link aggregation on a LXC bridge

I'm working on a server with a number of various interfaces (eth0-3) and I currently just use one for both host traffic and another for my LXC bridges traffic. Since I have a few spare ports just ...
0
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0answers
40 views

Can I share a host process with linux container?

On my Ubuntu 12.04 host, I have created a linux container p2. On the host I have nginx installed and running. My question - Can I share the running nginx on host with one or more linux container? By ...
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votes
0answers
20 views

Guest session on server

I want to execute user supplied codes as guest session so it will not affect the opperationg system. When the server is running, is it possible to log create a guest session on server and execute user ...
0
votes
0answers
97 views

logging into a LXC container

Trying to create LXC container to run 32bit Wine on my 64bit machine. I have done all as instructed. Then coming to the part, where to start the container: sudo lxc-start -n my32bitbox After a ...
0
votes
0answers
46 views

Linux Container Creation

I am new to linux containers and when I create a linux container with the help of the command lxc-create, it comes up with the following error : configuration path /var/lib/lxc not found The command ...
0
votes
0answers
55 views

cloning lxc container using python3-lxc

I am experimenting with lxc on ubuntu 14.04. In order to manage a couple of lxc instances I am using python3-lxc. Using pyhthon3-lxc, I do fail to clone an existing container: >>> import lxc ...
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0answers
39 views

Returning to host machine from linux container

I have installed lxc on my server, then created an lxc container (ubuntu template and name is master). Next I started my container master, then logged in by command lxc-console, then I logout from ...
0
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0answers
235 views

Prerouting SSH to lxc container?

I'm trying to ssh on my container but i'm getting these errors OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011 debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying ...