27

I've been using Ubuntu for 12 years, and snap in the recent releases of Ubuntu is really a disgrace. It creates lots of problems. After an upgrade, Chromium does not start due to the following error:

chromium_chromium.desktop[122932]: snap-confine has elevated permissions and is not confined but should be. Refusing to continue to avoid permission escalation attacks: Operation not permitted

If a package changes configuration in a new version, it's its responsibility to make it work. Now, I have to reconfigure it after each start by

sudo apparmor_parser -r /etc/apparmor.d/*snap-confine*

How can I fully uninstall snap and re-install its packages by regular apt?

I don't have many packages handled by snap.

snap list
Name               Version             Rev   Tracking         Publisher   Notes
chromium           85.0.4183.121       1328  latest/stable    canonical✓  -
core18             20200724            1885  latest/stable    canonical✓  base
gnome-3-34-1804    0+git.3556cb3       60    latest/stable    canonical✓  -
gtk-common-themes  0.1-36-gc75f853     1506  latest/stable    canonical✓  -
snap-store         3.36.0-80-g208fd61  467   latest/stable/…  canonical✓  -
snapd              2.46.1              9279  latest/stable    canonical✓  snapd

My question is how to safely remove snap. From the snap list, I see gnome depends on snap.

10
  • 2
    On Ubuntu 20.04, the apt install chromium-browser will just re-install the snap package as that's where the program is now provided (has been for a few releases)
    – guiverc
    Oct 7, 2020 at 6:34
  • Uninstalling snap (if there is a way) won't solve your problem. I had issues with chromium that was related to snap. My "solution" was to install Google chrome through Google's .deb package. I think that's your only option for chromium, at least.
    – Ray
    Oct 7, 2020 at 6:50
  • Did you look at the snapcraft documentation? Because it clearly states how to remove snaps under the "Getting started" section. Also, this question has been asked before: How to uninstall a snap package manually? Oct 7, 2020 at 7:35
  • 1
    @Ray I already have Google Chrome, but I want to have both browsers. In Linux communities, we are proud of open-source programs. It is a shame that Google Chrome works better than Chromium on Ubuntu.
    – Googlebot
    Oct 7, 2020 at 11:45
  • 2

3 Answers 3

45

In Ubuntu 20.04 LTS (but it works also in the following releases till 22.04, that is the current one), I removed snapd following these steps:

# stop snapd services
sudo systemctl stop snapd && sudo systemctl disable snapd

# purge snapd
sudo apt purge snapd

# remove no longer needed folders
rm -rf ~/snap
sudo rm -rf /snap /var/snap /var/lib/snapd /var/cache/snapd /usr/lib/snapd /root/snap

Then, to avoid that other applications may reinstall it (chromium-browser is an example of application that restores snapd even if installed via apt) you can create a file no-snap.pref by issuing:

sudo -H gedit /etc/apt/preferences.d/no-snap.pref

and then copying the following content in it:

# To install snapd, specify its version with 'apt install snapd=VERSION'
# where VERSION is the version of the snapd package you want to install.
Package: snapd
Pin: release a=*
Pin-Priority: -10
3
6

Full credit to Don Prince for a comprehensive and effective solution from this link

I recommend you run the commands individually. Some you won't need, and for some you may need one or two extra lines.

Run the exploratory informational commands listed in the comments to determine the specific situation in your install.

Also installs Deb packaged last known Chromium and pins it to prevent snapd taking over again in future. Awesome! Thanks Don!

#!/bin/bash

# probably best to manually type this commands individually checking for problems
 
# snap list | grep -v "^Name" | awk {'print "sudo snap remove " $1'}
 
sudo snap remove snap-store
sudo snap remove gtk-common-themes
sudo snap remove gnome-3-28-1804
sudo snap remove gnome-3-34-1804
sudo snap remove core18
sudo snap remove snapd
snap list # expect: No snaps are installed yet. Try 'snap install hello-world'.
 
sudo umount /run/snap/ns
 
sudo systemctl disable snapd.service
sudo systemctl disable snapd.socket
sudo systemctl disable snapd.seeded.service
sudo systemctl disable snapd.autoimport.service
sudo systemctl disable snapd.apparmor.service
 
sudo rm -rf /etc/apparmor.d/usr.lib.snapd.snap-confine.real
 
sudo systemctl start apparmor.service
 
# df | grep snap | awk {'print "sudo umount " $6'}
sudo umount /snap/chromium/1424
sudo umount /snap/gtk-common-themes/1514
sudo umount /snap/gnome-3-28-1804/145
sudo umount /snap/core18/1944
sudo umount /snap/snapd/10492
sudo umount /var/snap
 
sudo apt purge snapd
 
# find / -type d -iname '*snap*'
# (I left the kernel entries well alone)
rm -rf ~/snap
sudo rm -rf /snap /var/snap /var/lib/snapd /var/cache/snapd /usr/lib/snapd
sudo rm -rf /root/snap /root/snap/snap-store /usr/share/doc/libsnapd-glib1 /usr/share/doc/gir1.2-snapd-1
 
cat <<EOF | sudo tee /etc/apt/preferences.d/snapd
Package: snapd
Pin: origin *
Pin-Priority: -1
EOF
 
cat <<EOF | sudo tee /etc/apt/preferences.d/pin-xalt7x-chromium-deb-vaapi
Package: *
Pin: release o=LP-PPA-xalt7x-chromium-deb-vaapi
Pin-Priority: 1337
EOF
 
sudo add-apt-repository ppa:xalt7x/chromium-deb-vaapi
 
sudo apt update
sudo apt-get install chromium-browser
1
  • 1
    Pin-Priority: 1337 :-P
    – hobs
    Nov 21, 2021 at 17:13
4

I agree with you about snaps.

I have completely removed snaps from my system by doing this:

sudo apt-get purge snapd
rm -rf ~/snap                                      
sudo rm -rf /snap                                  
sudo rm -rf /var/snap                              
sudo rm -rf /var/lib/snapd 

Now the system works well Although I had to substitute snap programs with their APT or .deb file versions when available. Unfortunately in my case I've lost an application that I need but that's the price I had to pay, but I gained some disk space and my boot time is a little shorter.

gnome is still installed and works regularly as before

gnome shell version shown in terminal

1
  • 1
    sudo apt purge snapd accomplishes those last 3 rm operations for you, and does it in a future-proof way.
    – hobs
    Nov 21, 2021 at 17:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.