Problem removing a snap

Chris cpollock at embarqmail.com
Wed Nov 2 21:53:49 UTC 2016


On Wed, 2016-11-02 at 18:43 -0200, Gustavo Niemeyer wrote:
> Hi Chris,
> 
> Can you please try updating your snapd package?
> 
> Recent releases have a more reliable remove procedure that handles
> these cases better. 
> 
According to apt-cache policy

chris at localhost:~$ apt-cache policy snapd
snapd:
  Installed: 2.16ubuntu3
  Candidate: 2.16ubuntu3
  Version table:
 *** 2.16ubuntu3 500
        500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main
amd64 Packages
        100 /var/lib/dpkg/status
     2.0.2 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

I tried to upgrade, sudo apt upgrade snapd

chris at localhost:~$ sudo apt upgrade snapd
[sudo] password for chris: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
snapd is already the newest version (2.16ubuntu3).
Calculating upgrade... Done


> On Wed, Nov 2, 2016 at 6:40 PM, Chris <cpollock at embarqmail.com>
> wrote:
> > I went to remove a snap, viking-gps, and it just sat there doing
> > nothing. I did a CTRL-C to stop the process. So, running snap
> > changes
> > showed me
> > 
> > 343  Doing   2016-11-02T17:22:13Z  -                     Remove
> > "viking-gps" snap
> > 
> > Then running snap change 343, since it was still running I get:
> > 
> > chris at localhost:/snap/viking-gps/1$ snap change 343
> > Status  Spawn                 Ready                 Summary
> > Done    2016-11-02T17:22:13Z  2016-11-02T17:22:14Z  Stop snap
> > "viking-
> > gps" services
> > Done    2016-11-02T17:22:13Z  2016-11-02T17:22:16Z  Make snap
> > "viking-
> > gps" unavailable to the system
> > Done    2016-11-02T17:22:13Z  2016-11-02T17:22:19Z  Remove security
> > profile for snap "viking-gps" (1)
> > Done    2016-11-02T17:22:13Z  2016-11-02T17:22:21Z  Remove data for
> > snap "viking-gps" (1)
> > Doing   2016-11-02T17:22:13Z  -                     Remove snap
> > "viking-gps" (1) from the system
> > Do      2016-11-02T17:22:13Z  -                     Discard
> > interface
> > connections for snap "viking-gps" (1)
> > 
> > ...................................................................
> > ...
> > Remove snap "viking-gps" (1) from the system
> > 
> > 2016-11-02T14:47:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T14:50:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T14:53:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T14:56:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T14:59:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T15:02:01-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T15:06:47-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T15:09:49-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T15:12:50-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 2016-11-02T15:15:51-05:00 ERROR cannot remove snap file "viking-
> > gps",
> > will retry in 3 mins: umount: /snap/viking-gps/1: not mounted
> > 
> > The above tells me that all has been done except removing the snap
> > and
> > discarding the interface. I ran sudo snap abort 343 which stopped
> > it.
> > However the snap still showed up in /snap but was empty. I took a
> > drastic step and just rmdir the folder under viking-gps and viking-
> > gps
> > itself. When I run sudo snap list it still shows up.
> > 
> > chris at localhost:/snap$ sudo snap list
> > Name                 Version         Rev  Developer    Notes
> > blender-tpaw         2.78-tpaw0      2    tpaw         -
> > directpdf            0.1.4           8    normex       devmode
> > krita                3.0.1.1-snap16  8    krita        -
> > pencilsheep          5               5    pencilsheep  -
> > snapweb              0.21.2          24   canonical    -
> > speed-test           1.7.0.1         2    bartaz       -
> > ubuntu-core          16.04.1         423  canonical    -
> > vice-jz              2.4.27-2        4    jz           -
> > viking-
> > gps                           1    chihchun     disabled,broken
> > wallpaperdownloader  2.3             5    egarcia      -
> > 
> > What snap command do I use to totally remove it from the list of
> > snaps
> > on my system?
> > 
> > --
> > Chris
> > KeyID 0xE372A7DA98E6705C
> > 31.11972; -97.90167 (Elev. 1092 ft)
> > 15:14:05 up 8 min, 1 user, load average: 4.82, 4.76, 2.53
> > Ubuntu 16.04.1 LTS, kernel 4.4.0-45-generic #66-Ubuntu SMP Wed Oct
> > 19 14:12:37 UTC 2016
> > 
> > --
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> > 
> 
> 
> -- 
> 
> gustavo @ http://niemeyer.net
> -- 
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-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11972; -97.90167 (Elev. 1092 ft)
16:35:27 up 1:29, 1 user, load average: 0.07, 0.11, 0.10
Ubuntu 16.04.1 LTS, kernel 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016
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