[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Mathew Hodson]

** No longer affects: nvidia-graphics-drivers-352 (Ubuntu)

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[JMarcelino]

** Also affects: nvidia-graphics-drivers-352 (Ubuntu)
   Importance: Undecided
   Status: New

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Launchpad Bug Tracker]

This bug was fixed in the package snapd - 2.11+16.10

---
snapd (2.11+16.10) yakkety; urgency=medium

  * New upstream release: LP: #1605303
- increase version number to reflect the nature of the update
  better
- store, daemon, client, cmd/snap, docs/rest.md: adieu search
  grammar
- debian: move snapd.refresh.timer into timers.target
- snapstate: add daemon-reload to fix autopkgtest on yakkety
- Interfaces: hardware-observe
- snap: rework the output after a snap operation
- daemon, cmd/snap: refresh --devmode
- store, daemon, client, cmd/snap: implement `snap find --private`
- tests: add network-observe interface spread test
- interfaces/builtin: allow getsockopt for connected x11 plugs
- osutil: check for nogrup instead of adm
- store: small cleanups (more needed)
- snap/squashfs: fix test not to hardcode snap size
- client,cmd/snap: cleanup cmd/snap test suite, add extra args
  testThis cleans up the cmd/snap test suite:
- wrappers: map "never" restart condition to "no."
- wrappers: run update-desktop-database after add/remove of desktop
  files
- release: work around elementary mistake
- many: remove all traces of channel from the buying codepath
- store: kill setUbuntuStoreHeaders
- docs: add payment methods documentation
- many: present user with a choice of payment backends
- asserts: add cross checks for snap asserts
- cmd/snap,cmd/snap-exec: support running hooks via snap-exec.
- tests: improve snap run symlink tests
- tests: add content sharing interface spread test
- store & many: a mechanical branch shortening store names
- snappy: remove old snappy pkg
- overlord/snapstate: kill flagscompat
- overlord/snapstate, daemon, client, cmd/snap: devmode override
  (aka confined)
- tests: extend refresh test to talk to the staging and production
  stores
- asserts,daemon: cross checks for account and account-key
  assertions
- client: existing JSON fixtures uses tabs for indentation
- snap-exec: add proper integration test for snap-exec
- spread.yaml, tests: replace hello-world with test-snapd-tools
- tests: add locale-control interface spread test
- tests: add mount-observe interface spread test
- tests: add system-observe interface spread test
- many: add AuthContext to mediate user updates to the state
- store/auth: add helper for the macaroon refresh endpoint
- cmd: add buy command
- overlord: switch snapstate.Update to use ListRefresh (aka
  /snaps/metadata)
- snap-exec: fix silly off-by-one error
- tests: stop using hello-world.echo in the tests
- tests: add env command to test-snapd-tools
- classic: remove (most of) "classic" mode, this is implemented as a
  snap now
- many: remove snapstate.Candidate and other cleanups
- many: removed authenticator, store gets a user instead
- asserts: fix minor doc comment typo
- snap: ensure unknown arguments to `snap run` are ignored
- overlord/auth: add Device/SetDevice to persist device identity in
  state
- overlord: make SyncBoot work again
- tests: add -y flag to apt autoremove command in unity task restore
- many: migrate SnapSetup and SideInfo to use RealName
- daemon: drop auther()
- client: improve error from client.do() on json decode failures
- tests: readd the fake store tests
- many: allow removal of broken snaps, add spread test
- overlord: implement {After: duration} support for handlers
- interface: add new interfaces.all.SecurityBackends
- integration-tests: remove login tests
- cmd,interfaces,snap: implement hook whitelist.
- daemon,overlord/auth,store: update macaroon authentication to use
  the new endpoints
- daemon, overlord: add buy endpoint to REST API
- tests: use systemd-run for starting and stopping the unity app
- tests, integration-tests: port systemd service check test to
  spread
- store: switch search to new snap-specific endpoint
- store, many: start using the new details endpoint
- tests, integration-tests: port unity test to spread
- tests: add spread test for tried snaps removal
- tests, integration-tests: port auth errors test to spread
- snapstate: rename OfficialName to RealName in the new tests
- many: rename SideInfo.OfficialName to SideInfo.RealName
- snapstate: use snapstate.Type in backend.RemoveSnapFiles
- many: add `snap enable/disable` commands
- tests, integration-tests: port refresh all test to spread
- snap: add `snap run --shell`
- tests: set yaml indentation to 4 spaces
- snapstate: cleanup downloaded temp snap files
- overlord: make patch1_test more robust
- debian: add snapd.postrm that purges
- integration-tests: drop already covered refresh app test
- many: add concept of "broken" snaps
- tests, integration-tests: 

[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[David Daynard]

This issue is confusing me. I'm on yakkety running Cinammon and the
nvidia drivers will not update due to this error. I do not have snapd
installed. Why is a .deb file trying to use Snap? I tried installing
snapd as a test and it still errors out on this. I ran the Snap reset
script (which did nothing since I don't have any Snaps installed) and it
still didn't work. Should I open this as a separate bug?

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Launchpad Bug Tracker]

This bug was fixed in the package snapd - 2.0.8

---
snapd (2.0.8) xenial; urgency=medium

  * New upstream release: LP: #1589534
- debian: make `snap refresh` times more random (LP: #1537793)
- cmd: ExecInCoreSnap looks in "core" snap first, and only in
  "ubuntu-core" snap if rev>125.
- cmd/snap: have 'snap list' display helper message on stderr
  (LP: #1587445)
- snap: make app names more restrictive.

 -- Michael Vogt   Wed, 08 Jun 2016 07:56:58
+0200

** Changed in: snapd (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Michael Vogt]

I can no longer reproduce the unmount issue with the snapd from
-proposed.

** Tags removed: verification-needed
** Tags added: verification-done

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Francois Thirioux]

As Lilian, I'll rather wait to test again since in Yakkety nvidia
package is also updated, not only snapd :

nvidia-graphics-drivers-361 (361.45.11-0ubuntu3) yakkety; urgency=medium

  * debian/rules, debian/templates/control.in,
debian/templates/nvidia-graphics-drivers.dirs.in,
debian/templates/nvidia-graphics-drivers.install.in,
debian/templates/nvidia-graphics-drivers.postinst.in,
debian/templates/var-lib-snapd-lib-gl.mount.in,
- Revert bind mount unit for snappy, as it causes a regression.
<<<

 -- Alberto Milone   Mon, 06 Jun 2016
15:53:32 +0200

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Oliver Grawert]

@lilianmoraru since the (broken and fixed) packages went into the 
xenial-proposed repo, only people that actively opted in to test pre-upgrades 
(including potentially broken ones) to give feedback to the developers will 
actually get this update. 
xenial-proposed is nothing that anyone should have enabled permanently, 
packages get tested, fixed and verified there before they move to 
xenial-updates.
people using a standard ubuntu install where proposed is not enabled will never 
hit this issue.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

@brian-murray I see nobody came with a response.
Personally I cannot test this since I banged my head of a wall to fix this 
issue and now I don't want to break my system and get into that hell all over 
again just to test the issue(I am not even sure what are exactly the steps to 
test this. Do you need this package before the nVidia update? Is it ok that you 
removed nVidia and installed the package?...).
My guess is that the other guys don't want that either.

This is not the kind of a bug that people can live with and that's why
they don't already have a fix for it...

Best chance is that people that didn't update yet hit the issue... and
don't want to fix it with the suggestions in here...

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Brian Murray]

Hello hectorsales, or anyone else affected,

Accepted snapd into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/snapd/2.0.7 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: snapd (Ubuntu Xenial)
   Status: New => Fix Committed

** Tags added: verification-needed

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Rik Mills]

@Abhishek

As said in comment 23, if you edit

/var/lib/dpkg/info/libcuda1-367.prerm

and

/var/lib/dpkg/info/nvidia-opencl-icd-367.prerm

to insert 'exit 0' before the active script lines, then those errors
should be bypassed allowing you to uninstall the faulty packages.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Abhishek Bhatia]

I can't remove the nvidia packages at first to reinstall later. I am
using Kubuntu 16.04.

abhishek ~ $ sudo apt-get purge libcuda1-367 
Reading package lists... Done
Building dependency tree   
Reading state information... Done
The following packages were automatically installed and are no longer required:
  bbswitch-dkms fonts-roboto-hinted lib32gcc1 libechonest2.3 libgsasl7 
libjansson4 libjdns2 libjreen1
  liblucene++0v5 libntlm0 libqjdns-qt4-2 libqtkeychain0 libquazip1 libxnvctrl0 
screen-resolution-extra
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  libcuda1-367*
0 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
After this operation, 35.6 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 294457 files and directories currently installed.)
Removing libcuda1-367 (367.18-0ubuntu0~gpu16.04.2) ...
Failed to stop var-lib-snapd-lib-gl.mount: Unit var-lib-snapd-lib-gl.mount not 
loaded.
dpkg: error processing package libcuda1-367 (--purge):
 subprocess installed pre-removal script returned error exit status 5
Failed to get unit file state for var-lib-snapd-lib-gl.mount: No such file or 
directory
var-lib-snapd-lib-gl.mount is a disabled or a static unit, not starting it.
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Errors were encountered while processing:
 libcuda1-367
E: Sub-process /usr/bin/dpkg returned an error code (1)
abhishek ~ $ sudo apt-get purge nvidia-opencl-icd-367 
Reading package lists... Done
Building dependency tree   
Reading state information... Done
The following packages were automatically installed and are no longer required:
  bbswitch-dkms fonts-roboto-hinted lib32gcc1 libechonest2.3 libgsasl7 
libjansson4 libjdns2 libjreen1
  liblucene++0v5 libntlm0 libqjdns-qt4-2 libqtkeychain0 libquazip1 libxnvctrl0 
screen-resolution-extra
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  nvidia-opencl-icd-367*
0 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
After this operation, 36.4 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 294457 files and directories currently installed.)
Removing nvidia-opencl-icd-367 (367.18-0ubuntu0~gpu16.04.2) ...
Failed to stop var-lib-snapd-lib-gl.mount: Unit var-lib-snapd-lib-gl.mount not 
loaded.
dpkg: error processing package nvidia-opencl-icd-367 (--purge):
 subprocess installed pre-removal script returned error exit status 5
Failed to get unit file state for var-lib-snapd-lib-gl.mount: No such file or 
directory
var-lib-snapd-lib-gl.mount is a disabled or a static unit, not starting it.
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Errors were encountered while processing:
 nvidia-opencl-icd-367
E: Sub-process /usr/bin/dpkg returned an error code (1)
abhishek ~ $

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

@Andrie, you can just put "exit 0" right before the shebang.

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Adrien Béraud]

3vi1 solution at #22 worked for me.

I had to edit
/var/lib/dpkg/info/nvidia*.prerm
and
/var/lib/dpkg/info/libcuda*.prerm
and removed the automatically added section (last 3-4 lines).

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[3vi1]

> For anyone encountering this bug, a workaround to allow the removal of
the broken package is to first stop your X display manager, then use
remove the packages manually on the command line, and finally reboot.

That did not work in my case - even booting into recovery mode, never
starting X.

I had to go edit two of the prerm scripts so that they didn't try to
stop var-lib-snapd-lib-gl.mount.  Otherwise, that failure would block
libcuda1* and nvidia-opencl-icd*.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

Finally, Bart's(#18) suggestion worked.
I get a lot of errors from the removed nvidia packages but I guess I can live 
with that...

Now I only have to figure out how to remove Lubuntu without destroying
my system.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Michael Vogt]

This need some more investigation (why unity fails to start) but
https://github.com/snapcore/snapd/pull/1271 should at least prevent the
"mount point busy" error.

** Changed in: snapd (Ubuntu)
   Status: Confirmed => In Progress

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Michael Marley]

For anyone encountering this bug, a workaround to allow the removal of
the broken package is to first stop your X display manager, then use
remove the packages manually on the command line, and finally reboot.
This will switch you back to Nouveau but at least give you a working
system from which you can reinstall the older NVIDIA package that is not
afflicted by the bug.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Bart Willemsen]

I was able to uninstall the driver by first stopping lightdm with "sudo
systemctl stop lightdm". After reverting back to Nouveau I was able to
log in, but Unity didn't start. (no window borders or launcher, etc.) I
fixed this by doing the following:

sudo dconf reset -f /org/compiz/
sudo setsid unity

This immediately caused Unity to pop back into place! But I did a reboot
just to be sure and everything is working great again now. :)

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Rik Mills]

Also hit this bug this morning. Oddly when installing the gpu ppa update
to fix/revert the problem, rather than with the original affected
package.

preventing any action of /var/lib/dpkg/info/nvidia-opencl-icd-364.prerm
allowed old nvidia packages to be fully purged and updated/fixed ones
installed

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Marcin Sągol]

I can confirm this problem on Kubnut 16.10, nvidia-367 driver. Stopping
sddm and removing driver helped.

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Marcin Sągol]

I shuold add that after the update, sddm stopped working on Kubuntu
16.10 - only black screen. Without stopping sddm i couldn't uninstall
the driver or change version.

so if someone want to have sddm login screen back:

sudo systemctl stop sddm
sudo apt remove --purge nvidia*
sudo systemctl start sddm

and you are back on login screen,

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

It didn't work. Again could not login after doing that...
Still works logging in LXDE.

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

Mateusz, I have the same issue with 364 and 367, regardless.
I guess 36*?

Thanks Matteo for the suggestion, I will try it and report the results.
Btw, in the meantime I installed "lubuntu-desktop" and it works alright(not the 
solution I would like but if it helps other people...).

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Title:
  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Mateusz Stachowski]

It should be noted that this problem only affects people using 361
drivers.

Those of us on Legacy 340 drivers have working Krita and desktop
session.

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Title:
  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Matteo Iervasi]

If now you're able to log-in but there's no frame, it usually means it's a 
compiz problem :D
Back with Ubuntu 10.04-12.04, when I played very frequently with Compiz 
settings, I messed up the system many times, and the solution has always been 
to purge everything related to compiz/unity (even the settings in the home 
directory, with rm  -rf ~/.compiz-1 ~/.config/compiz-1 ) and then reinstalling 
it (maybe with the ubuntu-desktop metapackage).

Also, make sure nvidia's drivers has been correctly installed and they
has been loaded (look at the output of lshw in the display section)

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

Same behavior with Matteo's solution.
Logs in but there is no compiz(no Unity and if I open a terminal, it does not 
have a frame)...

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

I managed to remove "libcuda" and every package that was depending on 
...snapd...mount by modifying "/var/lib/dpkg/info/[the package].prerm" and 
putting "exit 0" right after the shebang.
I removed nvidia, tried reinstalling different versions and configuring in 
different ways 4 times... and it didn't work(can login but no window frame).
Tried to install nouveau instead and still no window frame.
Tried reinstalling ubuntu-desktop, unity, compiz... still no luck.
unity/compiz --replace. -- no luck.

I will try to uninstall nouveau and attempt Matteo's solution.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Oliver Grawert]

** Changed in: snapd (Ubuntu)
   Importance: Undecided => Critical

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Oliver Grawert]

The status for this SRU test is tracked in bug #1588192

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Oliver Grawert]

Please note that the proposed archive is explicitly for testing package
upgrades before they go into xenial-updates (this one seemingly failed).
If you do not want to participate in testing,do not enable the proposed
repository in your software sources (note that it is off by default).

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Matteo Iervasi]

I solved this issue by logging in TTY1, purging snapd and everything nvidia 
related (sudo apt purge snapd nvidia* && sudo apt autoremove --purge, 
libcuda1-361 couldn't be removed but that's not a problem), then I ran the 
following script which resets all snaps, 
https://github.com/zyga/devtools/blob/master/reset-state (from the TTY1 use 
"curl https://raw.githubusercontent.com/zyga/devtools/master/reset-state >> 
reset.sh && chmod +x reset.sh && sudo ./reset.sh").
After all of these I reinstalled nvidia drivers (sudo apt install nvidia-361) 
and created the xorg conf (sudo nvidia-xconvig).
Hope this helped :)

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Lilian A. Moraru]

Same issue here on Ubuntu 16.04 LTS(Unity).
Could not login. What I did is stop "lightdm", after which 
"var-lib-snapd-lib-gl.mount", after that I purged "nvidia*", removed "snapd" 
and removed the folder "/var/lib/snapd", in the hopes that it won't start this 
problematic service any more.
I restarted and now it could login but compiz does not load(windows without 
frames and --replace does not work).
If I try to install nvidia, it does not allow me because it tries to remove 
"libcuda1-364" which fails to be removed because it can't find 
"var-lib-snapd-lib-gl.mount", tried forcing and everything, don't know what to 
do with it any more...
The biggest issue is that this is my main and only machine in the house + it is 
a full encryption system, I can't just start installing Ubuntu all over again, 
I have a lot of data...

I said to myself I won't ever install Ubuntu as the only system since I
always get hit with these issue within' 1-2 months of normal usage(every
Ubuntu version I had breaks at some point after an update - at work we
have 12.04.5 and one day it broke a few hundred of dev machines with an
update to the Linux kernel, luckily you can switch to an older version
in grub). I thought 16.04 LTS would be stable at this point and
risked...

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Title:
  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Francois Thirioux]

I'm not an Ubuntu noob but this combination of Nvidia 361.45 and snapd
2.06 upgrades is very nasty.

I was not able to downgrade or remove the 361.45 packages since the bug
description's trick happens. Even recovery mode was not sufficient. I
finally found that booting with upstart instead of systemd allows to
downgrade/remove when upstart lead the boot to a console.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[disz]

I was able to downgrade the nvidia packages by first stopping sddm via:

sudo systemctl stop sddm.service

I am running kubuntu though. If you're on Ubuntu it is not sddm but
lightdm, I guess.

Then:

sudo apt install {nvidia-opencl-
icd-361,nvidia-352,nvidia-361}=361.42-0ubuntu2

And reboot!

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Bart Willemsen]

Can someone please tell how to fix this? I can't login to my system now
and I need to get work done.

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  Failed unmounting Mount unit for nvidia support in snappy

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[Bug 1589006] Re: Failed unmounting Mount unit for nvidia support in snappy

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: snapd (Ubuntu)
   Status: New => Confirmed

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  Failed unmounting Mount unit for nvidia support in snappy

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