Questions tagged [lxc]
The LXC tag is for questions relating to LinuX Containers and lightweight virtualization capabiliaties, issues, and troubleshooting.
419
questions
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Ufw allow routed lxc interface not working
I have a problem with ufw. It works if i disable ufw so i know ufw is the problem.
The setup is a routed lxc container. I have done sudo ufw route allow in "interface" and ufw allow in "...
- 1
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0
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14
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creating new lxc veth bridge on impish
Following this excellent videos on Networing with lxc
The tutor uses Ubuntu 15.01
I use 20.04 impish
so when he discusses creating bridge in this link I am a bit stuck as impish uses Netplan.
I'll ...
0
votes
1
answer
27
views
Why does pandoc not generate a table of content in a LXC container?
I have a problem with pandoc not generating a table of content correclty.
Here is my workflow:
I create a Markdown file with the content of a web page.
I version my project with Git.
I git push to my ...
- 296
0
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0
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36
views
Apparmor: lxc-containers contains no profile
I ran an audit on my ubuntu 18.04 ec2 instance against Ubuntu 18.04 CIS benchmark. The issue was reported as " Ensure all AppArmor Profiles are enforcing" and it was Failed.
When I was ...
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votes
0
answers
16
views
Ubuntu VM host with no access to LAN
I have an issue where the VM host is not able to access the internet after adding a bridge for LXD/LXC containers. The LXC containers are assigned LAN IPs.
There seems to be two options to fix the ...
- 1
0
votes
1
answer
67
views
losing snap config
I'm using ubuntu 20.04 WSL2 on my windows 11 machine, every time I open my ubuntu 20.04 WSL2 I realize it lost snap configuration that I made for my lxc, lxd home lab, but the container is still saved,...
0
votes
1
answer
28
views
LXD export backup failed. Snapshot error
I tried to make lxc backup and get's error that failes on some snapshot for 2 years ago.
run test command
lxc export backup /tank/local/lxd/backups-temp/backup_test.tar.gz -v
Error message:
Error: ...
- 1
0
votes
1
answer
36
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LXC Profile custom changes are being ignored during container instantiation
I need all my containers to automatically upgrade packages, install build-essential and load an ssh key I can use to ssh inside of my container immediately after launching. However even after custom ...
- 121
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19
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Lxc networking: juju
I am trying to create a lxc bridge network using default setting from juju bootstrap. When I created the bridge network,I noticed it makes use of my org internal subnet. I am having the following ...
- 1
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19
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how to use existing default.img
I have an unused 222G file /mnt/disc/default.img. It was created a year ago when I was in process of expanding disc space for our container. But I got distracted and never completed the task. Now I ...
- 270
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100
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other interface connected to linux bridge not receiving multicast packet
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
Bridge Info
sudo brctl show
bridge name bridge id ...
9
votes
1
answer
963
views
Snap vs system container
I have seen this: what's the main difference between Docker and Snap?
I don't quite see the difference between snap and system containers.
VM has a separate Linux kernel and used fixed host ...
- 193
0
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0
answers
56
views
Replacing ifupdown's post-up in Ubuntu 20.04 container?
Cheers. I's setting up a sort of VPN gateway/endpoint - an unprivileged LXC container (running under Proxmox VE 7) based on Ubuntu 20.04, with nordvpn and dante-server installed. The latter is set up ...
- 44
0
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1
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27
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Issue about Characthers
i use in LXC, Ubuntu 21.04 (GNU/Linux 5.11.22-5-pve x86_64) on Proxmox.
I have an issue, because i see weird, some filename.
For example:
You're next (2011).mp4
But i can see in the shell:
You'\''re ...
- 11
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0
answers
51
views
Why are processors seemingly so active on an Ubuntu 20.04 Server with no appreciable services running in an LXC container?
On a minimal Ubuntu 20.04 server that's just been set up (and with some services disabled), I'm finding that htop is conveying that there's more processor activity going on than what I figure should ...
- 848
5
votes
2
answers
2k
views
ERROR: Unable to fetch GPG key from keyserver
I tried to launch lxc container. But when I give
sudo lxc-create -t download ubuntu -n web1
it shows this error
ERROR: Unable to fetch GPG key from keyserver
How to solve the issue?
0
votes
1
answer
53
views
login and pwd requested to use terminal inside a VM created by LXD
I'm pretty new to Linux Containers.
I followed these indications: https://linuxcontainers.org/lxd/getting-started-cli/#ubuntu to install and use LXD in Ubuntu 20.04
(base) raphy@pc:~$ snap install lxd
...
- 121
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0
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96
views
lxc-create fails while configuring base packages
I want to create a 32-bit groovy lxc. Steps I did:
sudo apt-get install lxc lxctl lxc-templates
sudo lxc-create -t ubuntu -n my32bitbox -- --bindhome $LOGNAME -a i386 -r groovy
...
I: Configuring ...
- 31
1
vote
0
answers
38
views
Error creating i386 lxc container on hirsute - does this work?
Attempting to create an i386 LXC Container on my amd64 host using:
sudo lxc-create -t ubuntu -n ubuntu32 -- --bindhome $LOGNAME -a i386
Results in:
dpkg: error processing package console-setup-linux (-...
- 111
1
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0
answers
566
views
unable to start a LXC container - lxc-start: lxccontainer.c: wait_on_daemonized_start: 804 Received container state "STOPPING" instead of "RUNNING"
Im very much new to LXC and LXD concepts. I was experimenting with LXC's by creating a containers and destroying them.
after some experiments, I tried to create a container to implement by task, was ...
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0
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46
views
How to find lxc container ip address?
I have created a lxc ubuntu container called newcon inside my Ubuntu 18.04 PC and I see that it is running:
lxc-start -d -n newcon
lxc-start: newcon: tools/lxc_start.c: main: 280 Container is already ...
- 526
0
votes
2
answers
56
views
LXD command is executed on host instead of container
I am using this command: lxc exec container -- sh -c 'sqlcmd -S localhost -U SA -P <..> -i <...>', but it will get executed on the host instead of the container.
But when I lxc shell ...
- 141
0
votes
1
answer
272
views
LXC dnsmasq port 53 in use but I would like to map to container
I am trying to have an authoritative only Bind server inside a LXC container but when I went to forward the port 53 to it, I received an error saying the port is already in use. (listen=tcp:0.0.0.0:53 ...
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1
vote
1
answer
438
views
Convert Ubuntu Server 20.04 LTS iso to lxc container or download somewhere
Where can I find LXC version of Ubuntu 20.04 LTS? I can find only .iso version at: https://ubuntu.com/download/server
Or how can I convert .iso image it to LXC?
- 111
0
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0
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94
views
Host has single interface with 2 addresses, iptables SNAT for LXC containers to specific destination is not working
I need your help with iptables on Ubuntu 18.04, kernel 4.15.0-112-generic :
I have hosts that run a bunch of LXC containers, not using bridging over the hosts' LAN interface lan1, but each LXC ...
- 1
1
vote
0
answers
352
views
Run docker container inside LXC with GPU
I have a GPU application docker image. Now I want to run that docker container with GPU support inside an LXC container but I am unable to do so.
The way I run is this:
lxc launch ubuntu plex -c ...
- 111
1
vote
0
answers
184
views
Getting an error running lxc after upgrade to 20.04
NOTE: This error seems to be only cosmetic, and the commands work just fine despite the error.
After upgrading from 18.04 to 20.04, running lxc as a non-root user gives the following error:
$ lxc ...
- 171
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0
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18
views
ubuntu main machine unaccessable via any network service, while virtual lxc machines are accessable
First I would like to apologize for my writing, English is my second language and I am far from the best for giving a proper description.
I run a lenovo laptop as a server, since it is what I got to ...
0
votes
1
answer
589
views
microk8s on LXC: Service snap.microk8s.daemon-proxy is not running
I installed microk8s in a LXD container
snap install microk8s --classic
When I inspect the instance it shows that snap.microk8s.daemon-proxy is not running
root@mk8s1:~# microk8s inspect
Inspecting ...
- 200
5
votes
1
answer
2k
views
LXC/LXD as Debian package
Installing LXD from APT installs it as a Snap package and while LXC programs are installed from a Debian package, running them tells me I need to install the LXD snap. Is there anyway to install LXC ...
- 1,568
1
vote
2
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637
views
What does stateful mean
I can snapshot a LXC on a ZFS Pool with or without the Option "Stateful".
I can not find any Info about it. What does it mean?
- 21
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111
views
About launching LXC Containers and their IP assignment
i am playing around with LXD and their Containers. I configured my LXD init like this:
...
Would you like to create a new local network bridge? (yes/no) [default=yes]: no
Would you like to configure ...
- 21
0
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1
answer
494
views
Auditd on Ubuntu 18.04 Container
i want to ask something about auditd in container, here we go
recently i try install auditd in my server (outside container) and it worked i follow this steps (https://documentation.wazuh.com/3.13/...
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0
answers
267
views
Performance using docker inside lxc
Is it good to have docker container inside lxc? How about running php, mysql application performance using docker container inside lxc for this when compare to running this applications as service in ...
- 11
1
vote
1
answer
100
views
incron job does not write to temp directory
I have a very weird problem that I might not have cooked down correctly, but I tried a minimal example:
In a 20.04 lxd container on 20.04, I am trying to run a job triggered by incron. For my minimal ...
- 209
1
vote
1
answer
373
views
Lost LXD/LXC with most recent 20.04 upgrade
Ubuntu 20.04 update/upgrade broke lxd/lxc containers
History:
Ubuntu 16.04 Server running LXD upgraded to Ubuntu 18.04 and subsequently Ubuntu 20.04.
All LXC containers worked fine until yesterdays “...
- 11
3
votes
3
answers
14k
views
Installing YUM in Ubuntu 20.04 to run CentOS LXC Containers
I was able to install Yum in Ubuntu 18.04 but I can't install it anymore in Ubuntu 20.04. So, when I try to run a CentOS LXC container in my Ubuntu I get an error like this one:
# lxc-create -n ...
- 141
1
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0
answers
332
views
LXC container ubuntu 18.04 apt update problem
I use LXC. I have not been able to update for the last 1 week. The errors are as follows: domain name resolution, Ping etc. It works.
root@nginx2:~# ping -c 2 google.com
PING google.com (172.217.18....
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votes
1
answer
62
views
SNAPD automatic updates and sunning servers in LXC
Recently Ubuntu moved LXC into snaps which raises a concern with snapd updates. Those updates can not be configured to be manual, they run on schedule and can't be turned off. As I am thinking to have ...
- 526
1
vote
1
answer
978
views
Performance overhead of LXD running as a SNAP
LXC/LXD used to be implemented as native packages until 18.04. Since 18.04 LXC containers are run as snaps. I wonder if this imposes a runtime overhead. This would negate the idea of having light-...
- 526
6
votes
1
answer
9k
views
Can't remove core18 snap
I am cleaning up my fresh Ubuntu 20.04 install and I can't seem to remove core18 snap.
$ snap list
Name Version Rev Tracking Publisher Notes
core18 20200427 1754 latest/stable ...
- 526
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1
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733
views
Setting Static IP and NAT trafic to LXC container
This is my first question in here so please have mercy of structured badly compared to the usual suspects. :-)
I would like to be able to receive real connecting client IP in a LXC container over TCP....
0
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0
answers
473
views
Cannot delete LXC container with full volume nor the volume itself
I've been toying around with LXC/LXD lately and ended up with a couple of stopped containers:
❯ lxc list
+------------------------------------+---------+------+------+-----------+-----------+
| ...
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7
votes
1
answer
10k
views
system does not fully support snapd: cannot mount squashfs image using "squashfs - mount failed
I'm attempting to install PowerShell on my Ubuntu instance using snap, but it generates an error:
# sudo snap install powershell --classic
error: system does not fully support snapd: cannot mount ...
- 173
0
votes
0
answers
225
views
Trying to extract files from ZFS image created by LXC
Alright, so on the beginning I’ll say that I’m not a master at Linux and that it is my first post here. If you’ll need me to do anything, I’ll do my best, but I can’t promise I’ll be successful. Also ...
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0
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0
answers
838
views
Getting Proxmox Virtual Machines with Networking working on So you Start (OVH) Dedicated Server
I just recently got a So you Start.com dedicated server. I want to set up some virtual machines in it and some LXC containers.
I have created a Ubuntu 20.04 virtual machine and have been trying to get ...
- 197
1
vote
1
answer
391
views
Ubuntu server: Cannot setup dummy driver alsa (LXC container) // modprobe issue [duplicate]
I'm trying to setup alsa on my ubuntu server, but it seems that the drivers are not installed & I don't know how to solve this problem. I just wanna setup a dummy soundcard. But I really don't ...
- 11
0
votes
2
answers
548
views
iptables rules for lxd container via ssh
Good day.
I use ubuntu 18 and want connect to my container via ssh. This is my container
cont | RUNNING | 10.78.195.190 (eth0) | fd42:4be2:f986:212a:216:3eff:fee4:582 (eth0) | PERSISTENT | 0 ...
- 3
0
votes
1
answer
641
views
LXD proxy for DNS
I set up a bind server in a LXD instance and I try to forward all DNS queries from host to this instance. I tried this:
sudo lxc config device add bind dnsdevicetcp proxy listen=tcp:0.0.0.0:53 ...
- 915
1
vote
2
answers
1k
views
error on install Community Server/ Document server onlyoffice
when try to install only office server based on there Installing Community Server for Debian, Ubuntu and derivatives
so step by step until the latest command
sudo apt-get install onlyoffice-...
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