systemd directories in /var/tmp

Asked by Mark Preston

Are the systemd-private directories in my /var/tmp, below, the correct ones?

Do they need removing from time to time to keep the printer-scanner-fax-copier working properly? Why does the hp-check -t report No Scanner Found? It seems to be working properly.

1. Your Linux Distribution and version.

Ubuntu 16.04.2

2. Your printer make/model.

 LaserJet Pro M227fdw

3. If possible, run 'hp-check -t' and post the output.

mark@Lexington:/$ hp-check -t

Saving output in log file: /hp-check.log

HP Linux Imaging and Printing System (ver. 3.17.7)
Dependency/Version Check Utility ver. 15.1

Copyright (c) 2001-15 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
has the proper dependencies installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode
will check both of the above cases (both compile- and run-time dependencies).

Check types:
a. EXTERNALDEP - External Dependencies
b. GENERALDEP - General Dependencies (required both at compile and run time)
c. COMPILEDEP - Compile time Dependencies
d. [All are run-time checks]
PYEXT SCANCONF QUEUES PERMISSION

Status Types:
    OK
    MISSING - Missing Dependency or Permission or Plug-in
    INCOMPAT - Incompatible dependency-version or Plugin-version

---------------
| SYSTEM INFO |
---------------

 Kernel: 4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017 GNU/Linux
 Host: Lexington

 Proc: 4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017 GNU/Linux
 Distribution: 12 16.04
 Bitness: 64 bit

-----------------------
| HPLIP CONFIGURATION |
-----------------------

HPLIP-Version: HPLIP 3.17.7
HPLIP-Home: /usr/share/hplip
HPLIP-Installation: Auto installation is supported for ubuntu distro 16.04 version

Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.17.7

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.17.7
html=/usr/share/doc/hplip-3.17.7
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv/hp
bin=/usr/bin
apparmor=/etc/apparmor.d
# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
pp-build=no
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
hpijs-install=no
foomatic-drv-install=no
foomatic-ppd-install=no
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.17.7
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
qt5=no
policy-kit=no
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=yes

Current contents of '/var/lib/hp/hplip.state' file:
[plugin]
installed = 1
eula = 1
version = 3.17.7

Current contents of '~/.hplip/hplip.conf' file:
[upgrade]
notify_upgrade = true
last_upgraded_time = 1501698379
pending_upgrade_time = 0
latest_available_version = 3.16.11

[settings]
systray_visible = 0
systray_messages = 0

[last_used]
device_uri = "hpfax:/usb/HP_LaserJet_MFP_M227-M231?serial=VNB3C25290"
printer_name = HP_LaserJet_MFP_M227-M231_fax
working_dir = .

[commands]
scan = /usr/bin/xsane -V %SANE_URI%

[refresh]
rate = 30
enable = false
type = 1

[polling]
enable = false
interval = 5
device_list =

[fax]
voice_phone = 011-323-761-0636
email_address =

[installation]
date_time = 08/18/2017 14:39:39
version = 3.17.7

 <Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>

--------------
| COMPILEDEP |
--------------

 gcc gcc - GNU Project C and C++ Compiler REQUIRED - 5.4.0 OK -
 make make - GNU make utility to maintain groups of programs REQUIRED 3.0 4.1 OK -
 libtool libtool - Library building support services REQUIRED - 2.4.6 OK -

------------------------
| General Dependencies |
------------------------

 libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.0.2 OK -
 python-xml Python XML libraries REQUIRED - 2.1.0 OK -
 libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 5.7.3 OK -
 sane-devel SANE - Scanning library development files REQUIRED - 1.0.25 OK -
 pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 1.1.7 OK -
 pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 REQUIRED 4.0 4.11.4 OK -
 libpthread libpthread - POSIX threads library REQUIRED - 2.23 OK -
 python-devel Python devel - Python development files REQUIRED 2.2 2.7.12 OK -
 cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - 2.1.3 OK -
 python-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.0 OK -
 cups-ddk CUPS DDK - CUPS driver development kit OPTIONAL - - OK -
 reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.3.0 OK -
 pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 4.11.4 OK -
 libusb libusb - USB library REQUIRED - 1.0 OK -
 cups-image CUPS image - CUPS image development files REQUIRED - 2.1.3 OK -
 python2X Python 2.2 or greater - Python programming language REQUIRED 2.2 2.7.12 OK -
 python-notify Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -
 libjpeg libjpeg - JPEG library REQUIRED - - OK -
 sane SANE - Scanning library REQUIRED - 1.0.25 OK -

----------------------
| Scan Configuration |
----------------------

 scanext Scan-SANE-Extension REQUIRED - 3.17.7 OK -
 hpaio HPLIP-SANE-Backend REQUIRED - 3.17.7 OK 'hpaio found in /etc/sane.d/dll.conf'

-------------------------
| External Dependencies |
-------------------------

 gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.18 OK -
 cups CUPS - Common Unix Printing System REQUIRED 1.1 2.1.3 OK 'CUPS Scheduler is running'
 network network -wget OPTIONAL - 1.17.1 OK -
 scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.25 OK -
 policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
 xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 0.999 OK -
 dbus DBus - Message bus system REQUIRED - 1.10.6 OK -
 avahi-utils avahi-utils OPTIONAL - 0.6.32 OK -

---------------------
| Python Extentions |
---------------------

 hpmudext IO-Extension REQUIRED - 3.17.7 OK -
 cupsext CUPS-Extension REQUIRED - 3.17.7 OK -

------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------

No Scanner found.

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

  Device URI Model
  -------------------------------- -------------------------
  hp:/usb/HP_LaserJet_MFP_M227-M23 HP LaserJet MFP M227-M231
  1?serial=VNB3C25290

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

HP_LaserJet_MFP_M227-M231
-------------------------
Type: Printer
Device URI: hp:/usb/HP_LaserJet_MFP_M227-M231?serial=VNB3C25290
PPD: /etc/cups/ppd/HP_LaserJet_MFP_M227-M231.ppd
PPD Description: HP LaserJet Pro MFP M227-M231 Postscript (recommended)
Printer status: printer HP_LaserJet_MFP_M227-M231 is idle. enabled since Fri 18 Aug 201ready to printPDT
Communication status: Good

HP_LaserJet_MFP_M227-M231_fax
-----------------------------
Type: Fax
Device URI: hpfax:/usb/HP_LaserJet_MFP_M227-M231?serial=VNB3C25290
PPD: /etc/cups/ppd/HP_LaserJet_MFP_M227-M231_fax.ppd
PPD Description: HP Fax2 hpcups
Printer status: printer HP_LaserJet_MFP_M227-M231_fax is idle. enabled since Wed 09 Aug 2017 03:07:38 PM PDT
Communication status: Good

--------------
| PERMISSION |
--------------

USB HP_LaserJet_MFP_M227-M231 Required - - OK Node:'/dev/bus/usb/008/004' Perm:' root lp rw- rw- rw- rw- rw- r--'

No errors or warnings.

4. A detailed explanation of your problem.

Terminal output of:

root@Lexington:/var/tmp# ls
kdecache-mark
kdecache-root
systemd-private-5185d94317e6426e822d4a2df370971f-colord.service-jwMZRL
systemd-private-5185d94317e6426e822d4a2df370971f-rtkit-daemon.service-8VMzjE
systemd-private-5185d94317e6426e822d4a2df370971f-systemd-timesyncd.service-CD8b4I
systemd-private-906a3415b7964d0facd504df814bb338-colord.service-8RkHqt
systemd-private-906a3415b7964d0facd504df814bb338-systemd-hostnamed.service-Fz4pLt
systemd-private-906a3415b7964d0facd504df814bb338-systemd-timesyncd.service-h4D0ct
systemd-private-a9c2f5d3ab7d4599b64a431e9f9f4c22-colord.service-eQBbCu
systemd-private-a9c2f5d3ab7d4599b64a431e9f9f4c22-rtkit-daemon.service-6hMvlb
systemd-private-a9c2f5d3ab7d4599b64a431e9f9f4c22-systemd-hostnamed.service-RU5PKv
systemd-private-a9c2f5d3ab7d4599b64a431e9f9f4c22-systemd-timesyncd.service-WuMNFt

5. Steps to recreate the problem.

Question information

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