Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Join us in building a kind, collaborative learning community via our updated Code of Conduct.

Questions tagged [ubuntu-core]

Ubuntu Core is a minimal version of Ubuntu intended for large-scale deployments, bringing transactional updates through the "snappy" packaging system.

0
votes
0answers
15 views

Installation of c compiler on Ubuntu Linux [duplicate]

How do I install GCC 8 on Ubuntu LTS 16.04.3?
0
votes
0answers
30 views

Can't ssh to Ubuntu Core on Raspberry Pi 3 with public IP

When I try to ssh to my Ubuntu Core Raspberry Pi 3 using its private IP (i.e. 10.x.x.x) it is able to connect, but when I try remotely from its public IP or hostname, it says ssh: connect to host &...
0
votes
0answers
16 views

Ubuntu-core image for ONIE

I would like to install ubuntu core via ONIE on my s6000 switches. Wondering if there is someone who can chat with me about how we can construct/deconstruct an ubuntu core image to work with ONIE ...
1
vote
1answer
18 views

Not able to create snap with executable

I want to create a snap with snapcraft. I have no source code, just one ready to use executable (application/x-executable) and one shared library (.so). The user later on should simply type in "test1" ...
1
vote
0answers
21 views

Ubuntu core: snap core repeatedly mount and umount

When I boot up Ubuntu core OS on my board with arm64, snap core repeatedly mount and umount like below, I have no idea why it happens. Mounting Mount unit for core, revision 4915... [ OK ] ...
0
votes
0answers
29 views

Segmentation fault (core dumped)

When i tries to open Spider(python IDE), Every time i got this error Segmentation fault (core dumped) ,What should i do.I tried different methods but could not resolve. Should I reinstall it or what.
0
votes
0answers
15 views

installing ubuntu core on kvm problem whith ssh

I tried to install ubuntu core on kvm but after installation in ubuntu core i have no user that i can insert commands enter image description here and when i want to ssh it shows this. enter image ...
0
votes
0answers
33 views

Snapcraft - python assign local whl file to a part

I am working on a snap python application, I want to link a local whl package to the build packages in a part. This whl package has modules that I will run the app command. How can I add a whl ...
2
votes
2answers
47 views

How to shutdown Ubuntu from chroot?

I installed an infrared receiver sensor and I plan to shutdown my Raspberry running Ubuntu Core using a remote control. The point is: Python and libraries like Rpi.GPIO are installed in an environment ...
0
votes
0answers
16 views

Ubuntu Core zfs tools to mount array?

I have installed Ubuntu Core bare metal. My intention is to host dockers on it. However I need to mount an existing ZFS array for data storage. Is there a way to get the ZFS tools in an Ubuntu Core ...
0
votes
0answers
42 views

Can I install Python 2.7 and pip on snappy Ubuntu Core 16.04?

This does not seems to answer the question: What is the recommended way to install pip on Snappy Ubuntu Core? It appears that Ubuntu Core 16.04 only has Python 3. How do I get Python 2 if there is no ...
1
vote
0answers
291 views

Ubuntu boot process hangs on starting snappy daemon [duplicate]

TL;DR: Ubuntu boot hangs on starting the snappy daemon, takes roughly 5min to boot, reinstall doesn't fix, issue is caused by an update. Backstory: I installed the vanilla-gnome-session and after ...
1
vote
0answers
13 views

Path in Ubuntu Core

I have a basic question: I'm running Ubuntu Core in a Raspberry, but I am unsure about the directory structure. In my understanding, Ubuntu Core uses environments (snaps) where programs are installed....
1
vote
1answer
45 views

How do I enter Setup and get into Ubuntu Core command line in a Raspberry Pi 3?

I successfully installed the Ubuntu Core in a Raspberry Pi 3. The system starts, I completed setup and now when I start the system, states firstly "No ethernet found", load all libraries and it goes ...
0
votes
0answers
25 views

Help me to decrease boot time for Ubuntu Core + LXDE-Openbox

I have this result of the commnad systemd-analyze critical-chain systemd-analyze critical-chain The time after the unit is active or started is printed after the "@" character. The time the unit ...
0
votes
0answers
38 views

Ubuntu core in Raspberry Pi3 without remote control mode ,Is it possible?

Can I release an application or snap in a Raspberry Pi3 with Ubuntu core and work with that through a monitor and keyboard directly without remote mode? is It possible? How can I do it?. In my low ...
0
votes
0answers
24 views

Automate/Configure Ubuntu Core First Boot Experience

I'm looking for any guidance on automating the first-boot process for a new Ubuntu Core image. I'm specifically looking for a way to automate the Ubuntu One login and initial network setup so ...
0
votes
1answer
50 views

How-to-install, lubuntu-core_0.94_amd64.deb

I want to make a small as possible Lubuntu. I have downloaded Desktop, Alt and Mini. What I have no idea about is, Core.... lubuntu-core_0.94_amd64.deb I don't know how to do a fresh install with a ....
0
votes
1answer
98 views

Ubuntu Core “Cannot open display:” [duplicate]

so I got Ubuntu Core up and running on a Raspi 3. Now I tried out a few snaps, but when it comes to snaps with a GUI I face a problem (I am connected via ssh). So I run gimp and it gives me the ...
2
votes
1answer
90 views

How do you manage journald log history on ubuntu core 16

I need to change the default configuration of journald on Ubuntu Core 16 so that I can see docker daemon logs from previous boots. However, /etc/systemd/journald.conf is on a read-only file system, ...
0
votes
1answer
45 views

Battery draining rapidly

I've recently switched From windows 10 to Linux. I am using Ubuntu 18 as primary OS on my Dell Inspiron 3542, battery drains so rapidly. I've used tlp and other battery optimization features. What ...
0
votes
1answer
78 views

Snap from .jar file

I am new to snapcraft. When I create a snap from a .jar file it shows Error: Unable to access jarfile. I searched a lot, but it didn’t work. Someone gives an example for creating a snapcraft.yaml file....
1
vote
0answers
10 views

How to test snapcraft package inside container with realistic confinement?

We want to run integrationtests for our software packaged as snap in an environment with the same confinements as it is running later on the hardware device installed with ubuntu-core. We want to ...
0
votes
1answer
31 views

How can I to set a custom configuration for a snap app?

Because /snap/gogsgit/31/gogs/snapApp.ini is in only read mode and the app hasn't a configuration option: administrador@ubuntu:~$ sudo snap set gogsgit port="0.0.0.0:3001" error: cannot perform the ...
0
votes
1answer
19 views

Dell Edge Gateway cloud-light color?

The Dell Edge Gateway 3002 has a 'cloud-led'/'cloud-light' that can be controlled through GPIO pin 346 and this works perfectly fine. However I can only get it to switch on/off in green, while the ...
0
votes
0answers
317 views

How to get past this when starting up Ubuntu 18.04?

This happened to me twice, and ended up with me booting the system from a CD once more. When waiting for the login display to show it stops loading and it's just showing me a lot of "Started" text ...
0
votes
1answer
14 views

How resource management work in snappy?

If I deploy a software with snappy how does the resource management occurs for that particular software? Is the resources elastic in terms of the system? Or is it defined?
1
vote
0answers
86 views

Allowing Firefox installed through Snap to associate links with non snap programs

I have just moved to Ubuntu 18.04 and am giving snaps a try, and so have set up Firefox as a snap package. Now I am trying to associate magnet links with my torrent client. I am however unable to let ...
1
vote
0answers
94 views

How can I stop snaps from listing in df? [duplicate]

I know very little (basically nothing) about snap. I see that in 18.04 they are already using snaps, shown below Core applications packaged as snaps Shown here So, my question is, that since ...
0
votes
0answers
38 views

Ubuntu Core SSH Raspberry Pi failed is it the hostname?

I'm setting up a Raspberry Pi 3 to run Ubuntu core. I have been attempting to setup my SSH cert to work through my Ubuntu One account and have repeatedly failed. I've been reviewing this question ...
1
vote
1answer
19 views

U Core hosted on OSX [closed]

id like to start experimenting with snaps on ubuntu core. Ideally start with a Docker image or Virtual Box container. Eventually I want to remotely deploy goLang apps, on rasspi's... but I am ...
2
votes
1answer
84 views

Access to ttyUSB* from snap (Ubuntu Core)

Our app is running as a snap on a device and needs serial-port access to the ttyUSB device. Running a snap list shows we have a number of snaps (none of which I think has a USB Slot) bash $ snap list ...
0
votes
0answers
75 views

ubuntu core (snappy) refresh sso ssh keys

I'd like to add another "ssh-user" to my ubuntu core. I followed the process of generating ssh keys and uploaded the public key to ubuntu SSO. Now if I try to login to my ubuntu core via ssh from my ...
2
votes
1answer
126 views

Where are snaps saved

I'm running Ubuntu 16.04. I have a few snaps installed. Looking in the system monitor it looks like there are several versions of each snap installed and that each version is consuming space on the ...
0
votes
1answer
261 views

modem-manager with Quectel EC21

I'm running Ubuntu Core on a Raspberry Pi Compute Module 3 (and IO board), and have a Quectel EC21 LTE modem connected to it via USB. I'm struggling to get it to work. Following the guide on the ...
0
votes
1answer
102 views

Editing rc.local for Ubuntu Core

I am trying to create a startup script on Ubuntu Core to enable usb_modeswitch to change the mode of one of the devices connected to the device. I am running Ubuntu Core on the Dragonboard410c. As in ...
1
vote
1answer
76 views

Is APT slated for deprecated with SNAP on the horizon? [closed]

With the emergence of Ubuntu Snap, the idea of Linux packages that are cross-platform and easily updateable are finally a reality. with that being said, is Ubuntu planning on making all of its ...
0
votes
1answer
322 views

Trying install of Ubuntu Core 16.04 on Intel NUC after installation of Desktop

After having succesfully installed the Ubuntu Desktop on my Intel NUC7i3BNH I wanted to try installing the Ubuntu Core installations (following https://www.ubuntu.com/download/core/intel-nuc). However ...
1
vote
0answers
37 views

Booting Ubuntu Core without external network

I am unable to boot Ubuntu Core without having an external network. It requires a network that assigns a IP address eventhough the network might not be connected to the internet. What I have tried: ...
1
vote
0answers
29 views

Bus Core Dumped when use any apt-get command [closed]

I'm using Ubuntu 16.04 lts . now when I type sudo apt-get install or remove or purge or update, always messaged: Bus Error Core Dumped. In addition, I can connect to wifi but cannot access the ...
0
votes
1answer
125 views

wifi-ap snap getting disabled in ubuntu core and raspberry pi 3

Im working on a Raspberry Pi 3 with ubuntu core. I'm trying to use wifi-ap snap to get an access point. However, the ap gets disabled all time. I set: sudo wifi-ap.config set disabled=false but it ...
1
vote
2answers
509 views

Setup Ubuntu Core 16 for RPi 3 without SSO

I need to get Ubuntu running on RPi not to do any sort of snap development or use, but running some regular server. Is there a way to get past the SSO setup and get back to plain old apt? Maybe by ...
2
votes
2answers
578 views

Ubuntu Core wifi configuration issue

My static IP address settings are being wiped out each time I reboot my Raspberry Pi. I just installed Ubuntu Core on a Raspberry Pi 3 but I have struggled to establish a wifi static IP address. The ...
0
votes
0answers
111 views

Ubuntu Core armhf on QEMU

I am running Ubuntu Core on QEMU raspi2 Machine but it does not support any network devices and can not be accessed over the network. Now I want to emulate Ubuntu Core armhf on QEMU, there actually ...
0
votes
2answers
118 views

Ubuntu Core on Raspberry Pi ssh failed

I am attempting to install and use the Ubuntu Core distro on a Raspberry Pi 3 for the first time. My SD card is formatted in MS_DOS FAT and the the ISO is flashed onto the card. I have gone through ...
3
votes
0answers
120 views

What is the support lifetime for Ubuntu Core?

None of the information I can find about Ubuntu Core mentions how long each release is supported for. The end of life page, and the releases wiki, make no mention of Ubuntu Core. Does it follow the ...
0
votes
0answers
21 views

Can I ship my own Core snap?

I am developing a GPL project that need some proprietary libraries and the only way to make it legal is to store and link the libraries in the Operating System. I would like to use Ubuntu Core but for ...
0
votes
1answer
166 views

Run Ubuntu Core 16 image for Raspberry Pi 3 in QEMU

I am trying to run Ubuntu Core 16 image for Raspberry Pi 3 in QEMU but it does not work. I followed this steps: Mount Ubuntu Core 16 image for Raspberry Pi 3 extract kernel.img Start qemu qemu-...
1
vote
0answers
166 views

What's the best way to configure Ubuntu Core? [closed]

I've used Ubuntu Core and I want to install it in a Raspberry Pi Model 3. I know Ubuntu Core is mainly aimed at IoT devices. But, I don't know what programs I can use on Ubuntu Core. For example, I ...
0
votes
1answer
208 views

What if the snap I want is not available and I can't use apt?

There's a huge variety of packages available via apt, especially when third party repositories are considered, but from what I can see, there are far fewer snaps available. For example, I've looked ...