Install snapd on Ubunut 18.04 with error

I trying to use snap on Ubuntu 18.04

get this error:
snap install hello-world
error: system does not fully support snapd: cannot mount squashfs image using “squashfs”: mount:
/tmp/sanity-mountpoint-979810778: mount failed: Operation not permitted.

This are my kernel.

/ snap version

snap 2.39.2+18.04
snapd 2.39.2+18.04
series 16
ubuntu 18.04
kernel 4.15.0

 / uname -r

4.15.0

/ cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION=“Ubuntu 18.04.2 LTS”

if I look here, I have the correct kernel.

that doesn’t look like an Ubuntu kernel, where did you get it?

from here:

Where did you get the kernel from?

I dont know.
I only install Ubuntu and after Plesk 17.8.11

Just for the record, can you check if there are any entries with DENIED in the output of dmesg? If so please post them here.

In /boot/ you probably have something like vmlinuz-4.15.0. Could you do dpkg -S of that file, and then apt policy of the package it mentions?

dmesg has no DENIEDs
~ dmesg
[24333472.479438] device veth9428a6f left promiscuous mode
[24333532.231454] device veth6fad564 entered promiscuous mode
[24333538.133175] device veth6fad564 left promiscuous mode
[24333597.878925] device vethc5591bc entered promiscuous mode
[24333604.107355] device vethc5591bc left promiscuous mode
[24333663.802078] device veth49c725d entered promiscuous mode
[24333669.675963] device veth49c725d left promiscuous mode
[24333729.605831] device veth4b1d616 entered promiscuous mode
[24333735.914039] device veth4b1d616 left promiscuous mode
[24333795.625475] device veth6d9707d entered promiscuous mode
[24333802.244762] device veth6d9707d left promiscuous mode
[24333862.000783] device veth4a25667 entered promiscuous mode
[24333868.196868] device veth4a25667 left promiscuous mode
[24333927.776532] device veth484e1ae entered promiscuous mode
[24333934.231803] device veth484e1ae left promiscuous mode
[24333993.979525] device veth04a26c4 entered promiscuous mode
[24334000.350406] device veth04a26c4 left promiscuous mode
[24334060.148690] device vethd0f8076 entered promiscuous mode
[24334066.858716] device vethd0f8076 left promiscuous mode
[24334126.644178] device vethe87b165 entered promiscuous mode
[24334133.178478] device vethe87b165 left promiscuous mode
[24334192.879467] device vethdb9198b entered promiscuous mode
[24334199.021841] device vethdb9198b left promiscuous mode
[24334258.774738] device veth7c02d68 entered promiscuous mode
[24334264.964268] device veth7c02d68 left promiscuous mode
[24334324.615500] device veth1849b6c entered promiscuous mode
[24334330.627717] device veth1849b6c left promiscuous mode
[24334390.501377] device veth16fc651 entered promiscuous mode
[24334396.343144] device veth16fc651 left promiscuous mode
[24334456.093157] device veth54aff3d entered promiscuous mode
[24334462.064840] device veth54aff3d left promiscuous mode
[24334521.810723] device vethfb01ef5 entered promiscuous mode
[24334528.338028] device vethfb01ef5 left promiscuous mode
[24334588.062223] device veth6351dbc entered promiscuous mode
[24334595.057189] device veth6351dbc left promiscuous mode
[24334654.675003] device veth81ada4b entered promiscuous mode
[24334661.083713] device veth81ada4b left promiscuous mode
[24334720.767454] device veth8b05b6a entered promiscuous mode
[24334726.870456] device veth8b05b6a left promiscuous mode
[24334786.546220] device vetha33e138 entered promiscuous mode
[24334792.706184] device vetha33e138 left promiscuous mode
[24334852.393325] device veth35451e0 entered promiscuous mode
[24334858.154518] device veth35451e0 left promiscuous mode
[24334917.894443] device veth4e2791d entered promiscuous mode
[24334924.041264] device veth4e2791d left promiscuous mode
[24334983.751083] device veth9a39240 entered promiscuous mode
[24334989.906236] device veth9a39240 left promiscuous mode
[24335049.633325] device veth33ddd26 entered promiscuous mode
[24335055.429910] device veth33ddd26 left promiscuous mode
[24335115.169258] device veth40f2fbf entered promiscuous mode
[24335121.067226] device veth40f2fbf left promiscuous mode
[24335180.946212] device vethd83cecb entered promiscuous mode
[24335186.971243] device vethd83cecb left promiscuous mode
[24335246.648076] device vethf78ec14 entered promiscuous mode
[24335253.492461] device vethf78ec14 left promiscuous mode
[24335313.220915] device veth378a25f entered promiscuous mode
[24335319.794088] device veth378a25f left promiscuous mode
[24335379.537369] device veth56d03fb entered promiscuous mode
[24335385.436800] device veth56d03fb left promiscuous mode
[24335445.173641] device veth93f554f entered promiscuous mode
[24335450.890390] device veth93f554f left promiscuous mode
[24335510.829271] device veth8a18efa entered promiscuous mode
[24335517.285359] device veth8a18efa left promiscuous mode
[24335576.994515] device vethf3199f7 entered promiscuous mode
[24335583.899087] device vethf3199f7 left promiscuous mode
[24335643.631634] device veth6072df6 entered promiscuous mode
[24335649.679665] device veth6072df6 left promiscuous mode
[24335709.425704] device veth2fd193f entered promiscuous mode
[24335715.378575] device veth2fd193f left promiscuous mode

Maybe this is my Problem.
I missed any files in /boot/

~ cd /boot
/boot ll
total 0

And in / ?

file is missing …

/ ll

total 100K
drwxr-xr-x    2 root root 4.0K Jul  4 10:07 bin
drwxr-xr-x    2 root root 4.0K Aug 20  2018 boot
drwxr-xr-x    9 root root 1.3K Jul  4 10:43 dev
drwxr-xr-x  113 root root  12K Jul  4 11:00 etc
drwxr-xr-x    3 root root 4.0K Jul  3 14:42 home
drwxr-xr-x   15 root root 4.0K Jul  4 10:27 lib
drwxr-xr-x    2 root root 4.0K Aug 27  2018 lib64
drwx------    2 root root  16K Aug 27  2018 lost+found
drwxr-xr-x    2 root root 4.0K Aug 27  2018 media
drwxr-xr-x    2 root root 4.0K Aug 27  2018 mnt
drwxr-xr-x    7 root root 4.0K Jul  4 10:24 opt
dr-xr-xr-x 5008 root root    0 Jul  4 10:43 proc
drwx------    7 root root 4.0K Jul  4 13:57 root
drwxr-xr-x   28 root root 1000 Jul  4 13:52 run
drwxr-xr-x    2 root root 4.0K Jul  4 10:07 sbin
drwxr-xr-x    2 root root 4.0K Jul  4 10:08 snap
drwxr-xr-x    2 root root 4.0K Aug 27  2018 srv
dr-xr-xr-x   13 root root    0 Apr 11  2018 sys
drwxrwxrwt   10 root root  16K Jul  4 13:57 tmp
drwxr-xr-x   10 root root 4.0K Aug 27  2018 usr
drwxr-xr-x   17 root root 4.0K Jul  4 10:27 var```

Ok, just to confirm: you’re not running an Ubuntu system, even though it says it is one. The kernel is not an Ubuntu kernel. I don’t know how you got there. HTH.

Ok thx
then I looking from where I get the right kernel.

if you say you installed plesk, does that mean you are using some virtual server or cloud instance at some hosting service ? that most likely does use some home-brewed kernel of the hosting provider (with quiestionable security if this is true) and will not be easily replaceable …

if this is the case, you should contact your hosting provider

@ogra

I take a mistake. In my hosting service I can upload my own iso and install it. I think I did something wrong and they didn’t install the iso which I uploaded.

after I read the answer from chipaca I contact the support of my provider :slight_smile: know waiting…

big thanks :sunny: