system does not start

[Oliver]

The System does not start. When starting in recovery mode the error

"failed to start Create Static Device Nodes in /dev.
See 'systemctl status systemd-tmpfiles-setupd-dev.service' for details"
is shown.

When typing

systemctl status systemd-tmpfiles-setupd-dev.service

into the console, the answer is:

Unit systemd-tmpfiles-setupd-dev.service could not be found.

The System does only start in recovery mode and I would expect an normal start.

Thanks for help in advance.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-42-generic 4.15.0-42.45
ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18
Uname: Linux 4.15.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: administrator 2025 F.... pulseaudio
 /dev/snd/controlC1: administrator 2025 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Mon Dec 10 10:42:07 2018
HibernationDevice: RESUME=UUID=6ffe8604-b66f-421e-afbd-50bcdeb4ff9e
InstallationDate: Installed on 2012-05-11 (2404 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-42-generic root=UUID=0c7307f0-bcbe-4a1e-8d04-3004f27151bc ro recovery nomodeset
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-42-generic N/A
 linux-backports-modules-4.15.0-42-generic N/A
 linux-firmware 1.173.2
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-12-10 (0 days ago)
dmi.bios.date: 12/27/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0146.2011.1227.1631
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67BL
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10189-209
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1227.1631:bd12/27/2011:svnbluechipComputerAG:pn:pvr:rvnIntelCorporation:rnDH67BL:rvrAAG10189-209:cvn:ct3:cvr:
dmi.sys.vendor: bluechip Computer AG

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[g.bruno (g-bruno)]

I got the same issue. "systemctl status systemd-tmpfiles-setupd-dev.service" yields the same response. But my system (Ubunutu 18.04.1) is starting properly and there are no problems when using it.
In /var/log/syslog these lines precede the error:
Jan 11 14:37:48 Intel-i5-Tower systemd[1]: Started Apply Kernel Variables.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/cuse, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/autofs, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/btrfs-control, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/userio, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/vfio, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/vfio/vfio, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/vhci, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/uhid, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/vhost-net, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/vhost-vsock, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/snd, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/snd, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/snd/timer, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd-tmpfiles[311]: Unsafe symlinks encountered in /dev/snd/seq, refusing.
Jan 11 14:37:48 Intel-i5-Tower systemd[1]: systemd-tmpfiles-setup-dev.service: Main process exited, code=exited, status=1/FAILURE
Jan 11 14:37:48 Intel-i5-Tower systemd[1]: systemd-tmpfiles-setup-dev.service: Failed with result 'exit-code'.
Jan 11 14:37:48 Intel-i5-Tower systemd-fsck[584]: Ubuntu/home: sauber, 316299/66273280 Dateien, 223989723/265086556 Blöcke
Jan 11 14:37:48 Intel-i5-Tower systemd[1]: Failed to start Create Static Device Nodes in /dev.
Jan 11 14:37:48 Intel-i5-Tower systemd[1]: Reached target Local File Systems (Pre).

Perhaps the error is due to the unsave symlinks?

[g.bruno (g-bruno)]

Found a possible solution on
https://ubuntuforums.org/showthread.php?t=2406453
---------------------------------------------------
Well. Problem is the root folder has user as an owner.
Code:

root@myserver:~# stat -c "%U %G" /
user user

Solution is:
Code:

root@myserver:~# chown root:root /
root@myserver:~# stat -c "%U %G" /
root root

root@myserver:~# systemctl start systemd-tmpfiles-setup
root@myserver:~#
---------------------------------------------------------
For me the result of 'stat -c "%U %G" /' is
nobody nogroup
I changed it to root:root and hope that it will work.
Greetings gbruno

[Fabricio (fabriciompc)]

Thats it! Thank you!!!

[sunbeam (dac-sunbeam)]

Thanks g.bruno ..it has solved my headache