CRON事変

マザーボードの情報を５分間隔でせっせと不眠不休で収集していた我がPCですが、「最近変化少ないなー」なんて考えていたら止まってました。
ログを見ると5月31日06:55AMから以下のエラー

May 31 06:55:01 fn2 CRON[10345]: PAM unable to dlopen(pam_env.so): /lib/security/pam_env.so: cannot open shared object file: No such file or directory

どうやらCRONの認証がNGになってたっぽい。原因は自動で行っていたセキュリティアップデートらしい。
/var/log/unattended-upgrades
に残ってるログを見てみる。
unattended-upgrades-dpkg_2011-05-31_06:52:46.867457.log
明らかにその時間にセキュリティアップデートしてる。

このとき対象になったパッケージはunattended-upgrades.logによると

2011-05-31 06:52:46,866 INFO Packages that are upgraded: bind9-host dnsutils libbind9-60 libdns69 libisc62 libisccc60 libisccfg62 liblwres60 libpam-modules libpam-modules-bin libpam-runtime libpam0g
2011-05-31 06:52:46,868 INFO Writing dpkg log to '/var/log/unattended-upgrades/unattended-upgrades-dpkg_2011-05-31_06:52:46.867457.log'
2011-05-31 06:53:22,862 INFO All upgrades installed

らしい。PAM関係のアップデートも含まれてる。

アップデートの詳細ログ「unattended-upgrades-dpkg_2011-05-31_06:52:46.867457.log」の内容を見てみるとしよう。

Preconfiguring packages ...
(Reading database ... 88217 files and directories currently installed.)
Preparing to replace libpam0g 1.1.2-2ubuntu8 (using .../libpam0g_1.1.2-2ubuntu8.2_amd64.deb) ...
Unpacking replacement libpam0g ...
Setting up libpam0g (1.1.2-2ubuntu8.2) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
(Reading database ... 88217 files and directories currently installed.)
Preparing to replace libpam-modules-bin 1.1.2-2ubuntu8 (using .../libpam-modules-bin_1.1.2-2ubuntu8.2_amd64.deb) ...
Unpacking replacement libpam-modules-bin ...
Processing triggers for man-db ...
Setting up libpam-modules-bin (1.1.2-2ubuntu8.2) ...
(Reading database ... 88217 files and directories currently installed.)
Preparing to replace libpam-modules 1.1.2-2ubuntu8 (using .../libpam-modules_1.1.2-2ubuntu8.2_amd64.deb) ...
Unpacking replacement libpam-modules ...
Processing triggers for man-db ...
Setting up libpam-modules (1.1.2-2ubuntu8.2) ...
(Reading database ... 88217 files and directories currently installed.)
Preparing to replace libpam-runtime 1.1.2-2ubuntu8 (using .../libpam-runtime_1.1.2-2ubuntu8.2_all.deb) ...
Unpacking replacement libpam-runtime ...
Processing triggers for man-db ...
Setting up libpam-runtime (1.1.2-2ubuntu8.2) ...
(Reading database ... 88217 files and directories currently installed.)
Preparing to replace dnsutils 1:9.7.3.dfsg-1ubuntu2 (using .../dnsutils_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement dnsutils ...
Preparing to replace bind9-host 1:9.7.3.dfsg-1ubuntu2 (using .../bind9-host_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement bind9-host ...
Preparing to replace libisc62 1:9.7.3.dfsg-1ubuntu2 (using .../libisc62_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement libisc62 ...
Preparing to replace libdns69 1:9.7.3.dfsg-1ubuntu2 (using .../libdns69_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement libdns69 ...
Preparing to replace libisccc60 1:9.7.3.dfsg-1ubuntu2 (using .../libisccc60_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement libisccc60 ...
Preparing to replace libisccfg62 1:9.7.3.dfsg-1ubuntu2 (using .../libisccfg62_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement libisccfg62 ...
Preparing to replace liblwres60 1:9.7.3.dfsg-1ubuntu2 (using .../liblwres60_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement liblwres60 ...
Preparing to replace libbind9-60 1:9.7.3.dfsg-1ubuntu2 (using .../libbind9-60_1%3a9.7.3.dfsg-1ubuntu2.1_amd64.deb) ...
Unpacking replacement libbind9-60 ...
Processing triggers for man-db ...
Setting up libisc62 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up libdns69 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up libisccc60 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up libisccfg62 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up libbind9-60 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up liblwres60 (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up bind9-host (1:9.7.3.dfsg-1ubuntu2.1) ...
Setting up dnsutils (1:9.7.3.dfsg-1ubuntu2.1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place

おやおや・・特にエラーは発生していない。きっとCRONなどのサービス類を再起動する必要があったのだろう。
・・・などと考えながらapt-get updateしてみた。・・・

Start-Date: 2011-06-01  22:59:20
Commandline: apt-get upgrade
Upgrade: libpam0g:amd64 (1.1.2-2ubuntu8.2, 1.1.2-2ubuntu8.3), libpam-modules-bin:amd64 (1.1.2-2ubuntu8.2, 1.1.2-2ubuntu8.3), libpam-modules:amd64 (1.1.2-2ubuntu8.2, 1.1.2-2ubuntu8.3), libpam-runtime:amd64 (1.1.2-2ubuntu8.2, 1.1.2-2ubuntu8.3)
End-Date: 2011-06-01  22:59:43

単なるテスト不足かよ！