hp-plugin installation woes on Debian Live
Hi all,
On Debian Live we have the followig setup:
The user "user" has full sudo access without any password:
$ cat /etc/sudoers.d/live
user ALL=(ALL) NOPASSWD: ALL
The user "root" has no password:
# cat /etc/shadow | grep root
root:*:17941:0:99999:7:::
Up to hplip version 3.18.10 in stretch-backports Debian Live users could
just type "sudo hp-setup" in the terminal, the graphical installer
starts and when there is a HP printer that needs an additional plug-in
the following dialog is shown in the terminal:
..............................................................................
------------------------------------------
| PLUG-IN INSTALLATION FOR HPLIP 3.18.10 |
------------------------------------------
Option Description
---------- --------------------------------------------------
d Download plug-in from HP (recommended)
p Specify a path to the plug-in (advanced)
q Quit hp-plugin (skip installation)
Enter option (d=download*, p=specify path, q=quit) ?
..............................................................................
Then the user just presses Enter and the plug-in gets downloaded and
installed. Everything works great.
Now with the latest hplip version in backports (3.18.12+dfsg0-2~bpo9+1)
the installation of the plug-in fails after accepting the license:
..............................................................................
Do you accept the license terms for the plug-in (y=yes*, n=no, q=quit) ? y
Done.
Done.
error: The device you are trying to setup requires a binary plug-in.
Some functionalities may not work as expected without plug-ins. Please
run 'hp-plugin' as normal user to install plug-ins. Visit
http://hplipopensource.com ; for more infomation.
..............................................................................
When I run the command hp-plugin as a normal user I get a graphical
dialog (translation to ASCII by me):
----------------------------------------------------------
| HP Device Mangager - Enter Username/Password |
------------------------------------------------------------
| Your HP Device requires to install HP proprietary plugin |
| Please enter root/superuser password to continue. |
| -------------------------- |
| Username: |root | |
| -------------------------- |
| -------------------------- |
| Password: | | |
| -------------------------- |
| ---------------- |
| | OK ||
| ---------------- |
------------------------------------------------------------
The Username inputfield (already filled with the value "root") is not
editable.
If I keep the password field empty (remember, root has no password in
Debian Live) I get the error message:
................................................................
error: Password incorrect. 2 attempt(s) left.
................................................................
After two more attempts the installation expectedly fails with the
following output:
................................................................
error: Password incorrect. 1 attempt(s) left.
error: Password incorrect.
Plugin installation failed
error: Python gobject/dbus may be not installed
error: Plug-in install failed.
................................................................
Only if I run "sudo hp-plugin" on the command line I can finally install
the necessary plugin.
This all is quite a severe regression. Instead of a simple linear
workflow when installing an HP printer on Debian Live it means now:
1) start hp-setup
2) run into a plugin installation error (bad!)
3) run hp-plugin as recommended as a normal user and fail again (very bad!)
4) search the Internet, find this bug report and run "sudo hp-plugin" as
a workaround (should not be necessary)
To sum it up: Would it be possible to restore the old behavior (until
v3.18.10) in hplip where installing an HP printer on Debian Live was
more or less straightforward?Our users are mostly primary school
students and teachers. They need to be able to setup HP printers without
a masters degree in computer science...
Thanks and best regards
Ronny
--
------------------------------------------------------------------------
Universität Bern
Institut für Informatik
Forschungsstelle Digitale Nachhaltigkeit
Dr. Ronny Standtke
Bereichsleiter Lernstick
Schützenmattstrasse 14
CH-3012 Bern
------------------------------------------------------------------------
Mobile +41 79 786 81 82
ronny.standtke@iwi.unibe.ch <mailto:ronny.standtke@iwi.unibe.ch>
http://www.digitale-nachhaltigkeit.unibe.ch
Reply to: