Bug#946804: plugin download fails (broken keyserver, assumes Python 2)
Source: hplip
Version: 3.18.12+dfsg0-2
Severity: important
Hi,
I upgraded a machine to buster recently, and printing (an HP 1025nw,
with HP's proprietary plugin) just silently broke. Everything looked
OK, but nothing was coming out. Finally I found in /var/log/debug:
Dec 16 00:07:20 localhost hpcups[9302]: prnt/hpcups/HPCupsFilter.cpp 489: m_Job initialization failed with error = 48
The Internet suggested I needed to run hp-setup again (which needed
X forwarding, but OK...). It failed pretty badly, since it tried to
contact a keyserver that no longer existed, namely pgpkeys.mit.edu.
(Downloading the key manually from a different keyserver didn't help.)
Worse, however, is that the plugin installation just silently failed.
Eventually, I found out which file it was downloading, namely:
http://www.openprinting.org/download/printdriver/auxfiles/HP/plugins/hplip-3.18.12-plugin.run
and ran it myself. It turned out that it couldn't find its HPLIP modules;
by that, it seemingly meant the Python CUPS modules. The problem is that
the .run file prefers /usr/bin/python, which is Python 2, but Debian now only
ships CUPS modules for Python 3. (If you don't have /usr/bin/python, it tries
python3.)
After installing the plugin properly and getting a success message, it _still_
claimed I needed a plugin that I didn't have, and offered to run hp-plugin
for me, but now my old printer definition worked again, so I could just abort
the wizard and print. But new installations will probably be broken.
-- System Information:
Debian Release: 10.2
APT prefers stable-debug
APT policy: (500, 'stable-debug'), (500, 'proposed-updates'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.3.11 (SMP w/40 CPU cores)
Locale: LANG=en_DK.UTF-8, LC_CTYPE=en_DK.UTF-8 (charmap=UTF-8), LANGUAGE=en_NO:en_US:en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
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