When running "apt-show-versions -u" in a cron script, I got

Failed to open file /var/lib/apt/lists//debug.mirrors.debian.org_debian-debug_dists_stable-debug_InRelease for reading: Permission denied

I don't know why could cause the error, but the pathname with "//"
is incorrect.

Hi Vincent,

Am 11.05.24 um 11:53 schrieb Vincent Lefevre:

// in the path should not be a problem. Can you do a 'ls -l
/var/lib/apt/lists/' to see the permissions?

Which user does the cronjob run with?

Christoph

Hi Christoph,

zsh completion cannot handle it, so I was wondering.

lrwxrwxrwx 1 root root       25 2024-05-11 22:36:06 _var_local_apt_._Packages -> /var/local/apt/./Packages
drwxr-xr-x 2 _apt root     4096 2023-10-07 13:42:54 auxfiles
-rw-r--r-- 1 root root    52957 2024-05-11 16:15:34 debug.mirrors.debian.org_debian-debug_dists_proposed-updates-debug_InRelease
-rw-r--r-- 1 root root   308541 2024-05-08 22:34:42 debug.mirrors.debian.org_debian-debug_dists_proposed-updates-debug_main_binary-amd64_Packages
-rw-r--r-- 1 root root    49779 2024-02-10 12:17:11 debug.mirrors.debian.org_debian-debug_dists_stable-debug_InRelease
-rw-r--r-- 1 root root 14314273 2024-02-10 10:44:17 debug.mirrors.debian.org_debian-debug_dists_stable-debug_main_binary-amd64_Packages
-rw-r--r-- 1 root root    56601 2024-05-11 16:15:45 debug.mirrors.debian.org_debian-debug_dists_unstable-debug_InRelease
-rw-r--r-- 1 root root    11867 2024-05-11 16:07:07 debug.mirrors.debian.org_debian-debug_dists_unstable-debug_main_Contents-amd64.lz4
-rw-r--r-- 1 root root 15598917 2024-05-11 16:07:09 debug.mirrors.debian.org_debian-debug_dists_unstable-debug_main_binary-amd64_Packages
-rw-r--r-- 1 root root    12615 2024-05-11 16:07:07 debug.mirrors.debian.org_debian-debug_dists_unstable-debug_main_i18n_Translation-en
-rw-r--r-- 1 root root   101035 2024-05-11 16:15:38 ftp.debian.org_debian_dists_experimental_InRelease
-rw-r--r-- 1 root root  6832935 2024-05-11 16:10:22 ftp.debian.org_debian_dists_experimental_main_Contents-all.lz4
-rw-r--r-- 1 root root  2536358 2024-05-11 16:10:42 ftp.debian.org_debian_dists_experimental_main_Contents-amd64.lz4
-rw-r--r-- 1 root root  3972604 2024-05-11 16:10:44 ftp.debian.org_debian_dists_experimental_main_binary-amd64_Packages
-rw-r--r-- 1 root root  2424480 2024-05-11 16:10:15 ftp.debian.org_debian_dists_experimental_main_i18n_Translation-en
-rw-r--r-- 1 root root  3112151 2024-05-11 16:11:36 ftp.debian.org_debian_dists_experimental_main_source_Sources
-rw-r--r-- 1 root root    55443 2024-05-11 16:15:26 ftp.debian.org_debian_dists_stable-updates_InRelease
-rw-r--r-- 1 root root      317 2024-02-16 21:02:45 ftp.debian.org_debian_dists_stable-updates_contrib_Contents-amd64.lz4
-rw-r--r-- 1 root root     1224 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_contrib_binary-amd64_Packages
-rw-r--r-- 1 root root      538 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_contrib_i18n_Translation-en
-rw-r--r-- 1 root root     1251 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_contrib_source_Sources
-rw-r--r-- 1 root root   351371 2023-12-29 15:14:53 ftp.debian.org_debian_dists_stable-updates_main_Contents-all.lz4
-rw-r--r-- 1 root root   429325 2024-04-23 22:45:52 ftp.debian.org_debian_dists_stable-updates_main_Contents-amd64.lz4
-rw-r--r-- 1 root root    73340 2024-04-23 22:45:52 ftp.debian.org_debian_dists_stable-updates_main_binary-amd64_Packages
-rw-r--r-- 1 root root    90213 2024-04-23 22:45:51 ftp.debian.org_debian_dists_stable-updates_main_i18n_Translation-en
-rw-r--r-- 1 root root   333130 2024-04-23 22:46:05 ftp.debian.org_debian_dists_stable-updates_main_source_Sources
-rw-r--r-- 1 root root      361 2024-02-16 21:02:46 ftp.debian.org_debian_dists_stable-updates_non-free-firmware_Contents-amd64.lz4
-rw-r--r-- 1 root root     1446 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_non-free-firmware_binary-amd64_Packages
-rw-r--r-- 1 root root      696 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_non-free-firmware_i18n_Translation-en
-rw-r--r-- 1 root root    12123 2024-02-16 21:01:38 ftp.debian.org_debian_dists_stable-updates_non-free-firmware_source_Sources
-rw-r--r-- 1 root root    27884 2024-02-16 21:02:46 ftp.debian.org_debian_dists_stable-updates_non-free_Contents-amd64.lz4
-rw-r--r-- 1 root root   101751 2024-02-16 21:01:39 ftp.debian.org_debian_dists_stable-updates_non-free_binary-amd64_Packages
-rw-r--r-- 1 root root    64597 2024-02-16 21:01:39 ftp.debian.org_debian_dists_stable-updates_non-free_i18n_Translation-en
-rw-r--r-- 1 root root     6231 2024-02-16 21:01:39 ftp.debian.org_debian_dists_stable-updates_non-free_source_Sources
-rw-r--r-- 1 root root   151082 2024-02-10 12:17:10 ftp.debian.org_debian_dists_stable_InRelease
-rw-r--r-- 1 root root   166896 2023-05-23 22:01:16 ftp.debian.org_debian_dists_stable_contrib_Contents-all.lz4
-rw-r--r-- 1 root root   105449 2023-12-09 09:43:31 ftp.debian.org_debian_dists_stable_contrib_Contents-amd64.lz4
-rw-r--r-- 1 root root   233612 2023-12-09 09:42:40 ftp.debian.org_debian_dists_stable_contrib_binary-amd64_Packages
-rw-r--r-- 1 root root    18594 2023-06-01 22:32:38 ftp.debian.org_debian_dists_stable_contrib_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root    52675 2023-04-17 03:27:44 ftp.debian.org_debian_dists_stable_contrib_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root   105852 2023-04-17 03:27:44 ftp.debian.org_debian_dists_stable_contrib_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   189152 2023-12-09 09:42:40 ftp.debian.org_debian_dists_stable_contrib_i18n_Translation-en
-rw-r--r-- 1 root root   210418 2023-12-09 09:42:41 ftp.debian.org_debian_dists_stable_contrib_source_Sources
-rw-r--r-- 1 root root 55630671 2024-02-10 11:10:38 ftp.debian.org_debian_dists_stable_main_Contents-all.lz4
-rw-r--r-- 1 root root 19734099 2024-02-10 11:09:30 ftp.debian.org_debian_dists_stable_main_Contents-amd64.lz4
-rw-r--r-- 1 root root 49974557 2024-02-10 10:44:30 ftp.debian.org_debian_dists_stable_main_binary-amd64_Packages
-rw-r--r-- 1 root root  6949579 2023-06-09 10:23:29 ftp.debian.org_debian_dists_stable_main_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root  3594674 2023-06-03 22:31:12 ftp.debian.org_debian_dists_stable_main_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root  7294983 2023-06-03 22:31:34 ftp.debian.org_debian_dists_stable_main_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root 32676603 2024-02-10 10:44:30 ftp.debian.org_debian_dists_stable_main_i18n_Translation-en
-rw-r--r-- 1 root root 50836717 2024-02-10 10:44:04 ftp.debian.org_debian_dists_stable_main_source_Sources
-rw-r--r-- 1 root root    30331 2023-05-12 03:58:32 ftp.debian.org_debian_dists_stable_non-free-firmware_Contents-all.lz4
-rw-r--r-- 1 root root     1664 2023-12-09 09:43:30 ftp.debian.org_debian_dists_stable_non-free-firmware_Contents-amd64.lz4
-rw-r--r-- 1 root root    27152 2023-12-09 09:42:39 ftp.debian.org_debian_dists_stable_non-free-firmware_binary-amd64_Packages
-rw-r--r-- 1 root root    26862 2023-05-25 10:29:53 ftp.debian.org_debian_dists_stable_non-free-firmware_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root       29 2023-01-26 12:28:53 ftp.debian.org_debian_dists_stable_non-free-firmware_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root       29 2023-01-26 12:28:53 ftp.debian.org_debian_dists_stable_non-free-firmware_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   156926 2023-10-07 10:45:44 ftp.debian.org_debian_dists_stable_non-free-firmware_i18n_Translation-en
-rw-r--r-- 1 root root    28930 2023-12-09 09:42:41 ftp.debian.org_debian_dists_stable_non-free-firmware_source_Sources
-rw-r--r-- 1 root root  1519712 2023-05-24 15:58:36 ftp.debian.org_debian_dists_stable_non-free_Contents-all.lz4
-rw-r--r-- 1 root root   131488 2023-12-09 09:43:31 ftp.debian.org_debian_dists_stable_non-free_Contents-amd64.lz4
-rw-r--r-- 1 root root   586829 2023-12-09 09:42:40 ftp.debian.org_debian_dists_stable_non-free_binary-amd64_Packages
-rw-r--r-- 1 root root     4629 2023-05-29 10:31:22 ftp.debian.org_debian_dists_stable_non-free_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root      748 2023-04-17 03:33:59 ftp.debian.org_debian_dists_stable_non-free_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root    27482 2023-04-17 03:33:59 ftp.debian.org_debian_dists_stable_non-free_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   402871 2023-12-09 09:42:39 ftp.debian.org_debian_dists_stable_non-free_i18n_Translation-en
-rw-r--r-- 1 root root   345212 2023-12-09 09:42:41 ftp.debian.org_debian_dists_stable_non-free_source_Sources
-rw-r--r-- 1 root root   168417 2024-05-11 16:15:47 ftp.debian.org_debian_dists_testing_InRelease
-rw-r--r-- 1 root root   213371 2024-05-09 04:08:32 ftp.debian.org_debian_dists_testing_contrib_Contents-all.lz4
-rw-r--r-- 1 root root   191655 2024-05-08 04:07:17 ftp.debian.org_debian_dists_testing_contrib_Contents-amd64.lz4
-rw-r--r-- 1 root root   230299 2024-05-11 04:05:31 ftp.debian.org_debian_dists_testing_contrib_binary-amd64_Packages
-rw-r--r-- 1 root root    24054 2024-05-11 10:38:18 ftp.debian.org_debian_dists_testing_contrib_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root    51594 2024-05-11 10:40:13 ftp.debian.org_debian_dists_testing_contrib_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root   112053 2024-05-11 10:40:14 ftp.debian.org_debian_dists_testing_contrib_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   191460 2024-05-08 04:07:15 ftp.debian.org_debian_dists_testing_contrib_i18n_Translation-en
-rw-r--r-- 1 root root   206369 2024-05-11 04:06:05 ftp.debian.org_debian_dists_testing_contrib_source_Sources
-rw-r--r-- 1 root root 57586397 2024-05-11 16:12:56 ftp.debian.org_debian_dists_testing_main_Contents-all.lz4
-rw-r--r-- 1 root root 20159853 2024-05-11 16:12:41 ftp.debian.org_debian_dists_testing_main_Contents-amd64.lz4
-rw-r--r-- 1 root root 53124380 2024-05-11 16:12:38 ftp.debian.org_debian_dists_testing_main_binary-amd64_Packages
-rw-r--r-- 1 root root  6986010 2024-05-11 10:27:58 ftp.debian.org_debian_dists_testing_main_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root  3482776 2024-05-09 10:34:59 ftp.debian.org_debian_dists_testing_main_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root  6987198 2024-05-09 10:35:33 ftp.debian.org_debian_dists_testing_main_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root 33204559 2024-05-11 16:12:31 ftp.debian.org_debian_dists_testing_main_i18n_Translation-en
-rw-r--r-- 1 root root 54596696 2024-05-11 16:13:12 ftp.debian.org_debian_dists_testing_main_source_Sources
-rw-r--r-- 1 root root    31598 2024-03-14 03:25:35 ftp.debian.org_debian_dists_testing_non-free-firmware_Contents-all.lz4
-rw-r--r-- 1 root root     1842 2024-05-03 04:05:45 ftp.debian.org_debian_dists_testing_non-free-firmware_Contents-amd64.lz4
-rw-r--r-- 1 root root    27672 2024-05-04 04:06:36 ftp.debian.org_debian_dists_testing_non-free-firmware_binary-amd64_Packages
-rw-r--r-- 1 root root    27329 2024-05-04 10:44:46 ftp.debian.org_debian_dists_testing_non-free-firmware_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root       29 2023-06-26 10:45:36 ftp.debian.org_debian_dists_testing_non-free-firmware_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root       29 2023-06-26 10:45:36 ftp.debian.org_debian_dists_testing_non-free-firmware_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   165867 2024-03-08 03:12:52 ftp.debian.org_debian_dists_testing_non-free-firmware_i18n_Translation-en
-rw-r--r-- 1 root root    30976 2024-05-04 04:07:11 ftp.debian.org_debian_dists_testing_non-free-firmware_source_Sources
-rw-r--r-- 1 root root  1430770 2024-05-11 04:05:30 ftp.debian.org_debian_dists_testing_non-free_Contents-all.lz4
-rw-r--r-- 1 root root   127753 2024-05-11 04:05:31 ftp.debian.org_debian_dists_testing_non-free_Contents-amd64.lz4
-rw-r--r-- 1 root root   590616 2024-05-11 04:05:31 ftp.debian.org_debian_dists_testing_non-free_binary-amd64_Packages
-rw-r--r-- 1 root root     3832 2024-05-11 10:40:32 ftp.debian.org_debian_dists_testing_non-free_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root      754 2024-04-27 04:52:27 ftp.debian.org_debian_dists_testing_non-free_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root    12333 2024-04-28 05:06:44 ftp.debian.org_debian_dists_testing_non-free_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   416493 2024-05-11 04:05:28 ftp.debian.org_debian_dists_testing_non-free_i18n_Translation-en
-rw-r--r-- 1 root root   337928 2024-05-11 04:06:05 ftp.debian.org_debian_dists_testing_non-free_source_Sources
-rw-r--r-- 1 root root   198381 2024-05-11 16:15:49 ftp.debian.org_debian_dists_unstable_InRelease
-rw-r--r-- 1 root root   720963 2024-05-03 22:16:39 ftp.debian.org_debian_dists_unstable_contrib_Contents-all.lz4
-rw-r--r-- 1 root root   319127 2024-05-10 22:19:42 ftp.debian.org_debian_dists_unstable_contrib_Contents-amd64.lz4
-rw-r--r-- 1 root root   290695 2024-05-10 22:20:11 ftp.debian.org_debian_dists_unstable_contrib_binary-amd64_Packages
-rw-r--r-- 1 root root    25300 2024-05-11 04:47:45 ftp.debian.org_debian_dists_unstable_contrib_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root    55403 2024-05-11 04:48:06 ftp.debian.org_debian_dists_unstable_contrib_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root   123863 2024-05-11 04:48:07 ftp.debian.org_debian_dists_unstable_contrib_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   224830 2024-05-03 22:16:07 ftp.debian.org_debian_dists_unstable_contrib_i18n_Translation-en
-rw-r--r-- 1 root root   263675 2024-05-06 10:15:42 ftp.debian.org_debian_dists_unstable_contrib_source_Sources
-rw-r--r-- 1 root root 67241686 2024-05-11 16:08:50 ftp.debian.org_debian_dists_unstable_main_Contents-all.lz4
-rw-r--r-- 1 root root 23538957 2024-05-11 16:08:51 ftp.debian.org_debian_dists_unstable_main_Contents-amd64.lz4
-rw-r--r-- 1 root root 58023889 2024-05-11 16:08:51 ftp.debian.org_debian_dists_unstable_main_binary-amd64_Packages
-rw-r--r-- 1 root root  7394735 2024-05-11 10:14:48 ftp.debian.org_debian_dists_unstable_main_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root  3735425 2024-05-11 10:23:17 ftp.debian.org_debian_dists_unstable_main_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root  7539563 2024-05-11 10:23:36 ftp.debian.org_debian_dists_unstable_main_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root 35967772 2024-05-11 16:08:10 ftp.debian.org_debian_dists_unstable_main_i18n_Translation-en
-rw-r--r-- 1 root root 61117500 2024-05-11 16:10:13 ftp.debian.org_debian_dists_unstable_main_source_Sources
-rw-r--r-- 1 root root    31598 2024-03-09 15:48:18 ftp.debian.org_debian_dists_unstable_non-free-firmware_Contents-all.lz4
-rw-r--r-- 1 root root     1842 2024-03-28 15:09:21 ftp.debian.org_debian_dists_unstable_non-free-firmware_Contents-amd64.lz4
-rw-r--r-- 1 root root    27672 2024-04-29 10:07:08 ftp.debian.org_debian_dists_unstable_non-free-firmware_binary-amd64_Packages
-rw-r--r-- 1 root root    27267 2024-04-29 16:39:05 ftp.debian.org_debian_dists_unstable_non-free-firmware_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root       29 2023-01-08 20:25:19 ftp.debian.org_debian_dists_unstable_non-free-firmware_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root       29 2023-01-08 20:25:19 ftp.debian.org_debian_dists_unstable_non-free-firmware_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   165867 2024-03-03 21:27:24 ftp.debian.org_debian_dists_unstable_non-free-firmware_i18n_Translation-en
-rw-r--r-- 1 root root    32139 2024-04-29 10:09:16 ftp.debian.org_debian_dists_unstable_non-free-firmware_source_Sources
-rw-r--r-- 1 root root  1491338 2024-05-06 16:10:17 ftp.debian.org_debian_dists_unstable_non-free_Contents-all.lz4
-rw-r--r-- 1 root root   177244 2024-05-06 16:10:28 ftp.debian.org_debian_dists_unstable_non-free_Contents-amd64.lz4
-rw-r--r-- 1 root root   777699 2024-05-10 04:12:32 ftp.debian.org_debian_dists_unstable_non-free_binary-amd64_Packages
-rw-r--r-- 1 root root     5434 2024-05-10 10:38:07 ftp.debian.org_debian_dists_unstable_non-free_dep11_Components-amd64.yml.gz
-rw-r--r-- 1 root root     1544 2024-04-27 04:50:14 ftp.debian.org_debian_dists_unstable_non-free_dep11_icons-48x48.tar.gz
-rw-r--r-- 1 root root    28393 2024-04-27 04:50:14 ftp.debian.org_debian_dists_unstable_non-free_dep11_icons-64x64.tar.gz
-rw-r--r-- 1 root root   635562 2024-05-06 16:09:49 ftp.debian.org_debian_dists_unstable_non-free_i18n_Translation-en
-rw-r--r-- 1 root root   398037 2024-05-10 04:14:20 ftp.debian.org_debian_dists_unstable_non-free_source_Sources
-rw-r----- 1 root root        0 2023-10-07 13:42:54 lock
drwx------ 2 _apt root    28672 2024-05-11 22:36:14 partial
-rw-r--r-- 1 root root    47951 2024-05-10 19:15:34 security.debian.org_debian-security_dists_stable-security_InRelease
-rw-r--r-- 1 root root     1351 2024-02-05 21:52:55 security.debian.org_debian-security_dists_stable-security_contrib_binary-amd64_Packages
-rw-r--r-- 1 root root      653 2023-10-17 20:17:43 security.debian.org_debian-security_dists_stable-security_contrib_i18n_Translation-en
-rw-r--r-- 1 root root     1433 2024-02-05 21:52:54 security.debian.org_debian-security_dists_stable-security_contrib_source_Sources
-rw-r--r-- 1 root root   958575 2024-05-10 19:15:00 security.debian.org_debian-security_dists_stable-security_main_binary-amd64_Packages
-rw-r--r-- 1 root root   663419 2024-05-10 10:56:01 security.debian.org_debian-security_dists_stable-security_main_i18n_Translation-en
-rw-r--r-- 1 root root  1925600 2024-05-10 19:15:01 security.debian.org_debian-security_dists_stable-security_main_source_Sources
-rw-r--r-- 1 root root     1300 2023-11-23 16:43:07 security.debian.org_debian-security_dists_stable-security_non-free-firmware_binary-amd64_Packages
-rw-r--r-- 1 root root      924 2023-09-24 18:52:12 security.debian.org_debian-security_dists_stable-security_non-free-firmware_i18n_Translation-en
-rw-r--r-- 1 root root     1839 2023-11-23 16:43:07 security.debian.org_debian-security_dists_stable-security_non-free-firmware_source_Sources
-rw-r--r-- 1 root root    43463 2024-05-10 19:15:35 security.debian.org_dists_testing-security_InRelease

root, AFAIK (the mail was from root).

Regards,

Hi Vincent,

Am 13.05.24 um 15:34 schrieb Vincent Lefevre:

Please try to access the file e.g. 'less
/var/lib/apt/lists//debug.mirrors.debian.org_debian-debug_dists_stable-debug_InRelease'

What is _var_local_apt_._Packages?

Can you access this files content?

Apart from that, I can't spot a problem.

Christoph

No problems.

Perhaps because on my local repository:

deb [trusted=yes] file:///var/local/apt ./

Yes, the file can be read.

Hi Vincent,

Am 13.05.24 um 19:59 schrieb Vincent Lefevre:

You could try to prepend strace to your cron call like:

strace -o /tmp/asv.$$ -e trace=file apt-show-versions -u

and look for the failed syscall.

Did you look for selinux or apparmor messages in syslog?

Christoph

Actually by the user (vinc17, i.e. me). I shouldn't have looked
at the "From:" header of the mail for that. Anyway, this shouldn't
matter because the permissions are "-rw-r--r--".

The issue is that this is not reproducible, but see below.

The failure occurred on 2024-05-11 00:04:01 +0200.
In the journalctl output:

May 11 00:03:49 qaa su[315536]: (to root) vinc17 on pts/18
May 11 00:03:49 qaa su[315536]: pam_unix(su:session): session opened for user root(uid=0) by vinc17(uid=1000)
May 11 00:03:55 qaa accounts-daemon[1127]: Language 'C.utf8' set for user vinc17 is invalid
May 11 00:04:01 qaa CRON[316214]: pam_unix(cron:session): session opened for user vinc17(uid=1000) by vinc17(uid=0)
May 11 00:04:01 qaa CRON[316215]: (vinc17) CMD (apt-show-versions -u | grep manually)
May 11 00:04:01 qaa CRON[316214]: pam_unix(cron:session): session closed for user vinc17
May 11 00:04:01 qaa postfix/pickup[314458]: 6682BCA011C: uid=1000 from=<vinc17>
May 11 00:04:01 qaa postfix/cleanup[316242]: 6682BCA011C: message-id=<20240510220401.6682BCA011C@qaa.vinc17.org>
May 11 00:04:01 qaa postfix/qmgr[2011]: 6682BCA011C: from=<vincent@vinc17.net>, size=750, nrcpt=1 (queue active)
May 11 00:04:01 qaa postfix/local[316244]: 6682BCA011C: to=<vinc17@qaa.vinc17.org>, orig_to=<vinc17>, relay=local, delay=0.05, delays=0.03/0/0/0.02, dsn=2.0.0, status=sent (delivered to command: procmail -a "$EXTENSION")
May 11 00:04:01 qaa postfix/qmgr[2011]: 6682BCA011C: removed

Indeed, I have in my crontab:

4 */6 * * * apt-show-versions -u | grep manually

The mail message is due to the error (normally, there is none).

I logged as root a few seconds before, for an upgrade. I can see
in /var/log/apt/term.log:

Log started: 2024-05-11  00:13:28
[...]

So, perhaps I did an "apt update" around 00:04, and I can see with
"strace -f -o str.out apt update":

914566 chmod("/var/lib/apt/lists/debug.mirrors.debian.org_debian-debug_dists_stable-debug_InRelease", 0600) = 0

before doing later

914566 chmod("/var/lib/apt/lists/debug.mirrors.debian.org_debian-debug_dists_stable-debug_InRelease", 0644 <unfinished ...>

This could explain the error.

I'm wondering why apt plays with the permissions. This is confusing.
Or should there be a locking mechanism?

Am 14.05.24 um 10:39 schrieb Vincent Lefevre:

This reminds me about the long due rewrite to use the apt-API to access
these files and not read them directly.