Package: snmpd Version: 5.4.3~dfsg-2.2 Severity: important Tags: patch
Coin,As you can see in the file attached, unscd is quite verbose when invalidating its cache. Nevertheless, this is not a bug, and should not cause debconf breakage and snmpd upgrade failure.
debconf uses some black magic to redirect stdout and probably other things, which result in the script to be reexecuted (look at the log). It is then necessary to include confmodule at the very beginning of the script, as stated by debconf-devel(7): For shell programming, there is the /usr/share/debconf/confmodule library, which you can source at the top of a shell script, […]
and:* Always source /usr/share/debconf/confmodule at the top of your postinst, even if you won't be running any db_* commands in it. This is required to make sure the config script gets a chance to run (see HACKS for details).
and, in the 'HACKS' section:A related hack is getting debconf running when a config script, postinst, or other program that uses it starts up. After all, they expect to be able to talk to debconf right away. The way this is accomplished for now is that when such a script loads a debconf library (like /usr/share/debconf/confmodule), and debconf is not already running, it is started up, and a new copy of the script is re-execed. The only noticeable result is that you need to put the line that loads a debconf library at the very top of the script, or weird things will happen. We hope to address this later by changing how debconf is invoked, and turning it into something more like a transient daemon.
Moving the confmodule inclusion up fixes the bug, so please do. Regards. -- Marc Dequènes (Duck)
# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
awesome cpp dict g++ gcc guile-1.8-libs irssi ldap-utils libapt-pkg-perl
libcairo-perl libdatetime-perl libdigest-sha1-perl libfile-libmagic-perl
libfilesys-df-perl libglib-perl libgtk2-perl libhtml-parser-perl libio-pty-perl
libldap-2.4-2 libldap2-dev liblist-moreutils-perl liblocale-gettext-perl
libmouse-perl libnet-dbus-perl libnet-dns-perl libnet-ssleay-perl libpango-perl
libparams-validate-perl libpcsc-perl libpurple0 libsnmp15 libsocket6-perl
libsub-name-perl libsvn-perl libterm-readkey-perl libterm-size-perl
libtext-charwidth-perl libtext-iconv-perl libthunarx-2-0 libuuid-perl
libwww-curl-perl libxcb-image0 libxml-libxml-perl libxml-parser-perl perl
perl-base perl-modules
pidgin rubygems1.8 slapd thunar vim vim-common vim-nox
0 upgraded, 0 newly installed, 0 to remove and 54 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]?
Setting up snmpd (5.4.3~dfsg-2.2) ...
+ set -e
+ '[' xconfigure = xconfigure ']'
++ getent group snmp
+ '[' '!' ']'
+ deluser --quiet --system snmp
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
+ adduser --quiet --system --group --no-create-home --home /var/lib/snmp snmp
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(group) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
sent invalidate(passwd) request, exiting
sent invalidate(group) request, exiting
+ chown -R snmp:snmp /var/lib/snmp
+ . /usr/share/debconf/confmodule
++ '[' '!' '' ']'
++ PERL_DL_NONLAZY=1
++ export PERL_DL_NONLAZY
++ '[' '' ']'
++ exec /usr/share/debconf/frontend /var/lib/dpkg/info/snmpd.postinst configure
5.4.3~dfsg-2
+ set -e
+ '[' xconfigure = xconfigure ']'
++ getent group snmp
+ '[' '!' ']'
+ deluser --quiet --system snmp
+ adduser --quiet --system --group --no-create-home --home /var/lib/snmp snmp
+ chown -R snmp:snmp /var/lib/snmp
+ . /usr/share/debconf/confmodule
++ '[' '!' 1 ']'
++ '[' -z '' ']'
++ exec
++ '[' '' ']'
++ exec
++ DEBCONF_REDIR=1
++ export DEBCONF_REDIR
+ db_version 2.0
+ _db_cmd 'VERSION 2.0'
+ IFS=' '
+ printf '%s\n' 'VERSION 2.0'
+ IFS='
'
+ read -r _db_internal_line
+ RET='20 Unsupported command "sent" (full line was "sent invalidate(passwd)
request, exiting") received from confmodule.'
+ case ${_db_internal_line%%[ ]*} in
+ return 20
dpkg: error processing snmpd (--configure):
subprocess installed post-installation script returned error exit status 20
configured to not write apport reports
Errors were encountered while processing:
snmpd
E: Sub-process /usr/bin/dpkg returned an error code (1)
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