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

learn more… | top users | synonyms

3
votes
0answers
402 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
631 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 ...
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
391 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
265 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
518 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
140 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
157 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
votes
0answers
120 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
761 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
37 views

Is there a way to configure lxd containers with cloud config at provision time?

Specifically, with the CLI tools- not openstack. I'm looking at what a local dev setup with lxd might look like but am coming up empty handed when it comes to configuring new containers. Are there ...
1
vote
0answers
126 views

How can I run a Snappy / ubuntu-core image with LXD

I would like to run Ubuntu Snappy in an LXC container. There isn't an existing snappy image at the default https://images.linuxcontainers.org repo, but I was wondering if this is something others ...
1
vote
0answers
20 views

Ping to LXC container

Please, I try to do ping 10.0.3.8 (ip of LXC container) from VMB but it didn’t work ! Have you an idea please ? Here is an explanation of what I want do: (red arrow) The blue arrows means that the ...
1
vote
0answers
144 views

Can I deploy to LXC in a Juno/trusty environment?

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
vote
0answers
218 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 ...
1
vote
0answers
1k 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 ...
1
vote
0answers
72 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 ...
1
vote
0answers
585 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
vote
0answers
147 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 ...
1
vote
0answers
587 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. ...
1
vote
0answers
228 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 ...
1
vote
0answers
81 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
votes
0answers
18 views

Can I create a kvm inside an lxc?

I want to create a kvm inside an lxc container, but when I try it I get "Permission denied": $ qemu-system-x86_64 -enable-kvm -m 768 -localtime -nographic -net user -net nic,model=virtio -drive ...
0
votes
0answers
12 views

lxc-ls option flag error - lxc_container: command get_init_pid failed to receive response

I'm trying to use the lxc-ls command to list LXC containers on Ubuntu 12.04, but I'm getting a get_init_pid error whenever I invoke the command with an option flag. Here is an example session: $ sudo ...
0
votes
0answers
13 views

AppArmor Error: “invalid VM definition” after starting lxc on updated version of libvirt (1.2.12)

I am trying to start an LXC on a newer version of libvirtd but it fails to start with the following error: $ virsh -c lxc: start textlxc error: Failed to start domain testlxc error: internal error: ...
0
votes
0answers
6 views

Save lxc container on another partition

I'm running out of space on my / partition. Can I install/use /home partition with lxc containers? (how to allocate different hdd for use of containers?)
0
votes
0answers
11 views

No network on LXC container running vivid on precise host

I already run trusty containers on my precise host. I have no issues. I'm trying to run a vivid container on the same host. The container work, but there is no network. The container doesn't get ...
0
votes
0answers
50 views

Installing a GUI application in LXD/Docker with a GUI installer

I have an old proprietary software which I need to run on newer distro. I hope containers are the solution. The problem is that the old software installs itself from a GUI application which require ...
0
votes
0answers
13 views

Container namespace isn't visible in ip netns list

I wonder why we can't see the namespaces created by lxc-create on the output of "ip netns list" For example I create a namespace like below lxc-create -t download -n cont1 -- -d ubuntu -r trusty -a ...
0
votes
0answers
13 views

Change data directory of Docker

How can I change the data directory of Docker where docker save the container (or where lxc save the container)? I have in my server a ssd and a hard drive ant I want that the container will be save ...
0
votes
0answers
35 views

Connecting to lxc container via SSH using lxc user

I noticed that the username/password I use to connect to a newly created LXC container via lxc-console doesn't work with ssh (with sshd running in the container). When I try, I get Permission denied ...
0
votes
0answers
57 views

Route all LXC container traffic through host VPN connection

I have a host with an OpenVPN connection working on tun0 but not routing traffic through it. How would I configure an LXC container to route all it's traffic through the OpenVPN connection on tun0 ...
0
votes
0answers
66 views

How can I restrict an LXD guest to using a single public IP address?

I have an Ubuntu 14.04 LXD container on an Ubuntu 14.04 Server host (using lxd-git-master PPA). I want to prevent it from reaching any other containers or from communicating with the public Internet ...
0
votes
0answers
23 views

How can I make one legacy sysvinit script (xen) start before an upstart job (lxc)?

I am running Xen with an Ubuntu trusty Dom0 in the following configuration: FreeBSD DomU vault exports ZFS filesystem /storage/backuppc via NFS. Ubuntu Dom0 keep mounts vault:/storage/backuppc at ...
0
votes
0answers
27 views

Up to date LXC template for Ubuntu

Currently we are using LXC to deploy a web application, each time we deploy a new and separate container is freshly built. The container is based on Ubuntu 14.04, but the problem is that the template ...
0
votes
0answers
54 views

How to connect to a LXC container from the LAN?

I have a server with the latest Ubuntu server 64-bit install in my home wlan. I use ssh to connect to it from my laptop. The server /etc/network/interfaces file: # The loopback network interface ...
0
votes
0answers
31 views

Installing Web server on linux containers?

Is it possible to create a container and install a web server into it ? i.e. apache web server and run it ? Im doing a project on ns-3 using tapbridge and I need one of the nodes to act as a ...
0
votes
0answers
12 views

Possible to access lxc guest containers via DNS?

Assume I have a VPS server available at dev.myserver.com- I would like to be able to run 1 or 2 services from this one server, for example a saltstack service and a Jenkins instance. Now to keep the ...
0
votes
0answers
74 views

Ubuntu LXC container: “unable to set ”nproc“ resource limit: Operation not permitted”

I'm trying to install mongodb in a Ubuntu container, I followed these instructions to set up the Ubuntu 14.10 host: https://linuxcontainers.org/lxc/getting-started/ Running apt-get install mongodb ...
0
votes
0answers
120 views

no login prompt for lxc

I installed and setup an LXC according to these instructions... https://www.digitalocean.com/community/tutorials/getting-started-with-lxc-on-an-ubuntu-13-04-vps Everything was working fine until I ...
0
votes
0answers
25 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
votes
0answers
53 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
votes
0answers
37 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
votes
0answers
101 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
votes
0answers
541 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
votes
0answers
78 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
votes
0answers
132 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
213 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
votes
0answers
197 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
votes
0answers
57 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 ...