Package: unscd
Version: 0.54-1+b12
Severity: minor
I don't know what is going on here, but I don't see how it can possibly be my
fault.
My guess is either unscd is using adduser wrong (and just happened to be
asymptomatic until trixie), or
adduser is maaaaaaad in a way I can't understand.
Is it reasonable to make unscd under systemd ignore adduser and instead use
systemd-sysusers.conf or DynamicUser=yes?
Minimal reproducer, working under D12:
bash5$ mmdebstrap bookworm /dev/null --variant=apt
--include=debian-security-support,unscd
I: automatically chosen mode: unshare
I: chroot architecture amd64 is equal to the host's architecture
I: finding correct signed-by value...
done
I: automatically chosen format: null
I: using /tmp/mmdebstrap.2E6hrxprNX as tempdir
I: running apt-get update...
done
I: downloading packages with apt...
done
I: extracting archives...
done
I: installing essential packages...
done
I: installing remaining packages inside the chroot...
done
done
I: cleaning package lists and apt cache...
done
done
I: removing tempdir /tmp/mmdebstrap.2E6hrxprNX...
I: success in 29.4084 seconds
Minimal reproducer, failing under D13:
bash5$ mmdebstrap trixie /dev/null --variant=apt
--include=debian-security-support,unscd
I: automatically chosen mode: unshare
I: chroot architecture amd64 is equal to the host's architecture
I: finding correct signed-by value...
done
I: automatically chosen format: null
I: using /tmp/mmdebstrap.UChm2oUCtE as tempdir
I: running apt-get update...
done
I: downloading packages with apt...
done
I: extracting archives...
done
I: installing essential packages...
done
I: installing remaining packages inside the chroot...
done
done
Reading package lists...
Building dependency tree...
The following additional packages will be installed:
adduser debian-archive-keyring gettext-base libapt-pkg7.0 libbsd0
libhogweed6t64 liblz4-1 libnettle8t64 libseccomp2 libsemanage-common
libsemanage2 libsepol2 libstdc++6 libxxhash0 login.defs
passwd sqv
Suggested packages:
liblocale-gettext-perl perl cron quota apt-doc aptitude | synaptic |
wajig dpkg-dev gnupg | gnupg2 | gnupg1 powermgmt-base
Recommended packages:
ca-certificates sensible-utils
The following NEW packages will be installed:
adduser apt debian-archive-keyring debian-security-support gettext-base
libapt-pkg7.0 libbsd0 libhogweed6t64 liblz4-1 libnettle8t64 libseccomp2
libsemanage-common libsemanage2 libsepol2
libstdc++6 libxxhash0 login.defs passwd sqv unscd
0 upgraded, 20 newly installed, 0 to remove and 0 not upgraded.
Need to get 7333 kB of archives.
After this operation, 23.3 MB of additional disk space will be used.
Get:1 http://deb.debian.org/debian trixie/main amd64 login.defs all
1:4.17.4-2 [186 kB]
Get:2 http://deb.debian.org/debian trixie/main amd64 libbsd0 amd64 0.12.2-2
[131 kB]
Get:3 http://deb.debian.org/debian trixie/main amd64 libsemanage-common all
3.8.1-1 [7812 B]
Get:4 http://deb.debian.org/debian trixie/main amd64 libsepol2 amd64
3.8.1-1 [296 kB]
Get:5 http://deb.debian.org/debian trixie/main amd64 libsemanage2 amd64
3.8.1-1 [95.3 kB]
Get:6 http://deb.debian.org/debian trixie/main amd64 passwd amd64
1:4.17.4-2 [1229 kB]
Get:7 http://deb.debian.org/debian trixie/main amd64 adduser all 3.152 [191
kB]
Get:8 http://deb.debian.org/debian trixie/main amd64 libnettle8t64 amd64
3.10.1-1 [305 kB]
Get:9 http://deb.debian.org/debian trixie/main amd64 libhogweed6t64 amd64
3.10.1-1 [335 kB]
Get:10 http://deb.debian.org/debian trixie/main amd64 sqv amd64 1.3.0-3+b2
[661 kB]
Get:11 http://deb.debian.org/debian trixie/main amd64 libxxhash0 amd64
0.8.3-2 [27.1 kB]
Get:12 http://deb.debian.org/debian trixie/main amd64 liblz4-1 amd64
1.10.0-4 [63.9 kB]
Get:13 http://deb.debian.org/debian trixie/main amd64 libstdc++6 amd64
14.2.0-19 [714 kB]
Get:14 http://deb.debian.org/debian trixie/main amd64 libapt-pkg7.0 amd64
3.0.3 [1113 kB]
Get:15 http://deb.debian.org/debian trixie/main amd64
debian-archive-keyring all 2025.1 [179 kB]
Get:16 http://deb.debian.org/debian trixie/main amd64 libseccomp2 amd64
2.6.0-2 [51.7 kB]
Get:17 http://deb.debian.org/debian trixie/main amd64 apt amd64 3.0.3 [1452
kB]
Get:18 http://deb.debian.org/debian trixie/main amd64 gettext-base amd64
0.23.1-2 [243 kB]
Get:19 http://deb.debian.org/debian trixie/main amd64
debian-security-support all 1:13+2026.01.04 [30.3 kB]
Get:20 http://deb.debian.org/debian trixie/main amd64 unscd amd64
0.54-1+b12 [21.4 kB]
Fetched 7333 kB in 1s (8786 kB/s)
Chrooting into /tmp/mmdebstrap.UChm2oUCtE/
Selecting previously unselected package login.defs.
(Reading database ... 3537 files and directories currently installed.)
Preparing to unpack .../00-login.defs_1%3a4.17.4-2_all.deb ...
Unpacking login.defs (1:4.17.4-2) ...
Selecting previously unselected package libbsd0:amd64.
Preparing to unpack .../01-libbsd0_0.12.2-2_amd64.deb ...
Unpacking libbsd0:amd64 (0.12.2-2) ...
Selecting previously unselected package libsemanage-common.
Preparing to unpack .../02-libsemanage-common_3.8.1-1_all.deb ...
Unpacking libsemanage-common (3.8.1-1) ...
Selecting previously unselected package libsepol2:amd64.
Preparing to unpack .../03-libsepol2_3.8.1-1_amd64.deb ...
Unpacking libsepol2:amd64 (3.8.1-1) ...
Selecting previously unselected package libsemanage2:amd64.
Preparing to unpack .../04-libsemanage2_3.8.1-1_amd64.deb ...
Unpacking libsemanage2:amd64 (3.8.1-1) ...
Selecting previously unselected package passwd.
Preparing to unpack .../05-passwd_1%3a4.17.4-2_amd64.deb ...
Unpacking passwd (1:4.17.4-2) ...
Selecting previously unselected package adduser.
Preparing to unpack .../06-adduser_3.152_all.deb ...
Unpacking adduser (3.152) ...
Selecting previously unselected package libnettle8t64:amd64.
Preparing to unpack .../07-libnettle8t64_3.10.1-1_amd64.deb ...
Unpacking libnettle8t64:amd64 (3.10.1-1) ...
Selecting previously unselected package libhogweed6t64:amd64.
Preparing to unpack .../08-libhogweed6t64_3.10.1-1_amd64.deb ...
Unpacking libhogweed6t64:amd64 (3.10.1-1) ...
Selecting previously unselected package sqv.
Preparing to unpack .../09-sqv_1.3.0-3+b2_amd64.deb ...
Unpacking sqv (1.3.0-3+b2) ...
Selecting previously unselected package libxxhash0:amd64.
Preparing to unpack .../10-libxxhash0_0.8.3-2_amd64.deb ...
Unpacking libxxhash0:amd64 (0.8.3-2) ...
Selecting previously unselected package liblz4-1:amd64.
Preparing to unpack .../11-liblz4-1_1.10.0-4_amd64.deb ...
Unpacking liblz4-1:amd64 (1.10.0-4) ...
Selecting previously unselected package libstdc++6:amd64.
Preparing to unpack .../12-libstdc++6_14.2.0-19_amd64.deb ...
Unpacking libstdc++6:amd64 (14.2.0-19) ...
Selecting previously unselected package libapt-pkg7.0:amd64.
Preparing to unpack .../13-libapt-pkg7.0_3.0.3_amd64.deb ...
Unpacking libapt-pkg7.0:amd64 (3.0.3) ...
Selecting previously unselected package debian-archive-keyring.
Preparing to unpack .../14-debian-archive-keyring_2025.1_all.deb ...
Unpacking debian-archive-keyring (2025.1) ...
Selecting previously unselected package libseccomp2:amd64.
Preparing to unpack .../15-libseccomp2_2.6.0-2_amd64.deb ...
Unpacking libseccomp2:amd64 (2.6.0-2) ...
Selecting previously unselected package apt.
Preparing to unpack .../16-apt_3.0.3_amd64.deb ...
Unpacking apt (3.0.3) ...
Selecting previously unselected package gettext-base.
Preparing to unpack .../17-gettext-base_0.23.1-2_amd64.deb ...
Unpacking gettext-base (0.23.1-2) ...
Selecting previously unselected package debian-security-support.
Preparing to unpack
.../18-debian-security-support_1%3a13+2026.01.04_all.deb ...
Unpacking debian-security-support (1:13+2026.01.04) ...
Selecting previously unselected package unscd.
Preparing to unpack .../19-unscd_0.54-1+b12_amd64.deb ...
Unpacking unscd (0.54-1+b12) ...
Chrooting into /tmp/mmdebstrap.UChm2oUCtE/
Setting up login.defs (1:4.17.4-2) ...
Setting up debian-archive-keyring (2025.1) ...
Setting up gettext-base (0.23.1-2) ...
Setting up libsemanage-common (3.8.1-1) ...
Setting up libseccomp2:amd64 (2.6.0-2) ...
Setting up libnettle8t64:amd64 (3.10.1-1) ...
Setting up libsepol2:amd64 (3.8.1-1) ...
Setting up libhogweed6t64:amd64 (3.10.1-1) ...
Setting up libxxhash0:amd64 (0.8.3-2) ...
Setting up libsemanage2:amd64 (3.8.1-1) ...
Setting up sqv (1.3.0-3+b2) ...
Setting up unscd (0.54-1+b12) ...
warn: `/etc/adduser.conf' does not exist. Using defaults.
Insecure $ENV{PATH} while running with -T switch at
/usr/share/perl5/Debian/AdduserLogging.pm line 161.
dpkg: error processing package unscd (--configure):
installed unscd package post-installation script subprocess returned error
exit status 25
Setting up libbsd0:amd64 (0.12.2-2) ...
Setting up libstdc++6:amd64 (14.2.0-19) ...
Setting up liblz4-1:amd64 (1.10.0-4) ...
Setting up passwd (1:4.17.4-2) ...
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
Shadow passwords are now on.
Setting up libapt-pkg7.0:amd64 (3.0.3) ...
Setting up adduser (3.152) ...
Setting up apt (3.0.3) ...
Setting up debian-security-support (1:13+2026.01.04) ...
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
Processing triggers for libc-bin (2.41-12+deb13u2) ...
Errors were encountered while processing:
unscd
E: Sub-process env returned an error code (1)
E: setup failed: E: apt-get -o Dir::Bin::dpkg=env -o
DPkg::Options::=--unset=TMPDIR -o DPkg::Options::=dpkg --yes install
-oAPT::Status-Fd=<$fd> -oDpkg::Use-Pty=false debian-security-support unscd apt
failed: process exited with 100 and error in console output
W: hooklistener errored out: E: received eof on socket
I: main() received signal PIPE: waiting for setup...
I: removing tempdir /tmp/mmdebstrap.UChm2oUCtE...
E: mmdebstrap failed to run
Minimal reproducer, failing under D14:
bash5$ mmdebstrap forky /dev/null --variant=apt
--include=debian-security-support,unscd
I: automatically chosen mode: unshare
I: chroot architecture amd64 is equal to the host's architecture
I: finding correct signed-by value...
done
I: automatically chosen format: null
I: using /tmp/mmdebstrap.dVIrMerXYq as tempdir
I: running apt-get update...
done
I: downloading packages with apt...
done
I: extracting archives...
done
I: installing essential packages...
done
I: installing remaining packages inside the chroot...
done
done
Reading package lists...
Building dependency tree...
The following additional packages will be installed:
adduser debian-archive-keyring gettext-base libapt-pkg7.0 libbsd0
libhogweed6t64 liblz4-1 libnettle8t64 libseccomp2 libsemanage-common
libsemanage2 libsepol2 libstdc++6 libxxhash0 login.defs
passwd sqv
Suggested packages:
liblocale-gettext-perl perl cron quota apt-doc aptitude | synaptic |
wajig dpkg-dev gnupg | gnupg2 | gnupg1 powermgmt-base
Recommended packages:
ca-certificates sensible-utils
The following NEW packages will be installed:
adduser apt debian-archive-keyring debian-security-support gettext-base
libapt-pkg7.0 libbsd0 libhogweed6t64 liblz4-1 libnettle8t64 libseccomp2
libsemanage-common libsemanage2 libsepol2
libstdc++6 libxxhash0 login.defs passwd sqv unscd
0 upgraded, 20 newly installed, 0 to remove and 0 not upgraded.
Need to get 7651 kB of archives.
After this operation, 24.1 MB of additional disk space will be used.
Get:1 http://deb.debian.org/debian forky/main amd64 login.defs all
1:4.19.3-2 [208 kB]
Get:2 http://deb.debian.org/debian forky/main amd64 libbsd0 amd64
0.12.2-2+b1 [132 kB]
Get:3 http://deb.debian.org/debian forky/main amd64 libsemanage-common all
3.10-1 [6776 B]
Get:4 http://deb.debian.org/debian forky/main amd64 libsepol2 amd64 3.10-1
[307 kB]
Get:5 http://deb.debian.org/debian forky/main amd64 libsemanage2 amd64
3.10-1 [92.4 kB]
Get:6 http://deb.debian.org/debian forky/main amd64 passwd amd64 1:4.19.3-2
[1284 kB]
Get:7 http://deb.debian.org/debian forky/main amd64 adduser all 3.155 [212
kB]
Get:8 http://deb.debian.org/debian forky/main amd64 libnettle8t64 amd64
3.10.2-1+b1 [305 kB]
Get:9 http://deb.debian.org/debian forky/main amd64 libhogweed6t64 amd64
3.10.2-1+b1 [335 kB]
Get:10 http://deb.debian.org/debian forky/main amd64 sqv amd64 1.3.0-5 [648
kB]
Get:11 http://deb.debian.org/debian forky/main amd64 libxxhash0 amd64
0.8.3-2+b1 [28.1 kB]
Get:12 http://deb.debian.org/debian forky/main amd64 liblz4-1 amd64
1.10.0-6 [70.5 kB]
Get:13 http://deb.debian.org/debian forky/main amd64 libstdc++6 amd64
16-20260322-1 [765 kB]
Get:14 http://deb.debian.org/debian forky/main amd64 libapt-pkg7.0 amd64
3.2.0 [1221 kB]
Get:15 http://deb.debian.org/debian forky/main amd64 debian-archive-keyring
all 2025.1 [179 kB]
Get:16 http://deb.debian.org/debian forky/main amd64 libseccomp2 amd64
2.6.0-2+b1 [52.2 kB]
Get:17 http://deb.debian.org/debian forky/main amd64 apt amd64 3.2.0 [1515
kB]
Get:18 http://deb.debian.org/debian forky/main amd64 gettext-base amd64
0.23.2-2 [242 kB]
Get:19 http://deb.debian.org/debian forky/main amd64
debian-security-support all 1:14+2026.03.22 [26.2 kB]
Get:20 http://deb.debian.org/debian forky/main amd64 unscd amd64 0.54-1+b13
[21.6 kB]
Fetched 7651 kB in 1s (9627 kB/s)
Chrooting into /tmp/mmdebstrap.dVIrMerXYq/
Selecting previously unselected package login.defs.
(Reading database ... 3483 files and directories currently installed.)
Preparing to unpack .../00-login.defs_1%3a4.19.3-2_all.deb ...
Unpacking login.defs (1:4.19.3-2) ...
Selecting previously unselected package libbsd0:amd64.
Preparing to unpack .../01-libbsd0_0.12.2-2+b1_amd64.deb ...
Unpacking libbsd0:amd64 (0.12.2-2+b1) ...
Selecting previously unselected package libsemanage-common.
Preparing to unpack .../02-libsemanage-common_3.10-1_all.deb ...
Unpacking libsemanage-common (3.10-1) ...
Selecting previously unselected package libsepol2:amd64.
Preparing to unpack .../03-libsepol2_3.10-1_amd64.deb ...
Unpacking libsepol2:amd64 (3.10-1) ...
Selecting previously unselected package libsemanage2:amd64.
Preparing to unpack .../04-libsemanage2_3.10-1_amd64.deb ...
Unpacking libsemanage2:amd64 (3.10-1) ...
Selecting previously unselected package passwd.
Preparing to unpack .../05-passwd_1%3a4.19.3-2_amd64.deb ...
Unpacking passwd (1:4.19.3-2) ...
Selecting previously unselected package adduser.
Preparing to unpack .../06-adduser_3.155_all.deb ...
Unpacking adduser (3.155) ...
Selecting previously unselected package libnettle8t64:amd64.
Preparing to unpack .../07-libnettle8t64_3.10.2-1+b1_amd64.deb ...
Unpacking libnettle8t64:amd64 (3.10.2-1+b1) ...
Selecting previously unselected package libhogweed6t64:amd64.
Preparing to unpack .../08-libhogweed6t64_3.10.2-1+b1_amd64.deb ...
Unpacking libhogweed6t64:amd64 (3.10.2-1+b1) ...
Selecting previously unselected package sqv.
Preparing to unpack .../09-sqv_1.3.0-5_amd64.deb ...
Unpacking sqv (1.3.0-5) ...
Selecting previously unselected package libxxhash0:amd64.
Preparing to unpack .../10-libxxhash0_0.8.3-2+b1_amd64.deb ...
Unpacking libxxhash0:amd64 (0.8.3-2+b1) ...
Selecting previously unselected package liblz4-1:amd64.
Preparing to unpack .../11-liblz4-1_1.10.0-6_amd64.deb ...
Unpacking liblz4-1:amd64 (1.10.0-6) ...
Selecting previously unselected package libstdc++6:amd64.
Preparing to unpack .../12-libstdc++6_16-20260322-1_amd64.deb ...
Unpacking libstdc++6:amd64 (16-20260322-1) ...
Selecting previously unselected package libapt-pkg7.0:amd64.
Preparing to unpack .../13-libapt-pkg7.0_3.2.0_amd64.deb ...
Unpacking libapt-pkg7.0:amd64 (3.2.0) ...
Selecting previously unselected package debian-archive-keyring.
Preparing to unpack .../14-debian-archive-keyring_2025.1_all.deb ...
Unpacking debian-archive-keyring (2025.1) ...
Selecting previously unselected package libseccomp2:amd64.
Preparing to unpack .../15-libseccomp2_2.6.0-2+b1_amd64.deb ...
Unpacking libseccomp2:amd64 (2.6.0-2+b1) ...
Selecting previously unselected package apt.
Preparing to unpack .../16-apt_3.2.0_amd64.deb ...
Unpacking apt (3.2.0) ...
Selecting previously unselected package gettext-base.
Preparing to unpack .../17-gettext-base_0.23.2-2_amd64.deb ...
Unpacking gettext-base (0.23.2-2) ...
Selecting previously unselected package debian-security-support.
Preparing to unpack
.../18-debian-security-support_1%3a14+2026.03.22_all.deb ...
Unpacking debian-security-support (1:14+2026.03.22) ...
Selecting previously unselected package unscd.
Preparing to unpack .../19-unscd_0.54-1+b13_amd64.deb ...
Unpacking unscd (0.54-1+b13) ...
Chrooting into /tmp/mmdebstrap.dVIrMerXYq/
Setting up login.defs (1:4.19.3-2) ...
Setting up debian-archive-keyring (2025.1) ...
Setting up gettext-base (0.23.2-2) ...
Setting up libsemanage-common (3.10-1) ...
Setting up libseccomp2:amd64 (2.6.0-2+b1) ...
Setting up libnettle8t64:amd64 (3.10.2-1+b1) ...
Setting up libsepol2:amd64 (3.10-1) ...
Setting up libhogweed6t64:amd64 (3.10.2-1+b1) ...
Setting up libxxhash0:amd64 (0.8.3-2+b1) ...
Setting up libsemanage2:amd64 (3.10-1) ...
Setting up sqv (1.3.0-5) ...
Setting up unscd (0.54-1+b13) ...
warn: `/etc/adduser.conf' does not exist. Using defaults.
Use of uninitialized value $name_regex in regexp compilation at
/usr/sbin/addgroup line 1182.
Argument "(undef)" isn't numeric in sprintf at
/usr/share/perl5/Debian/AdduserLogging.pm line 200.
Argument "(undef)" isn't numeric in sprintf at
/usr/share/perl5/Debian/AdduserLogging.pm line 200.
Use of uninitialized value $max in numeric le (<=) at /usr/sbin/addgroup
line 1256.
Use of uninitialized value $t in numeric le (<=) at /usr/sbin/addgroup line
1256.
Use of uninitialized value $t in exists at /usr/sbin/addgroup line 1257.
Use of uninitialized value $t in getgrgid at /usr/sbin/addgroup line 1257.
Use of uninitialized value $max in numeric le (<=) at /usr/sbin/addgroup
line 1258.
Argument "(undef)" isn't numeric in sprintf at
/usr/share/perl5/Debian/AdduserLogging.pm line 200.
Argument "(undef)" isn't numeric in sprintf at
/usr/share/perl5/Debian/AdduserLogging.pm line 200.
warn: No GID is available in the range 0-0 (FIRST_SYS_GID - LAST_SYS_GID).
err: The group `' was not created.
dpkg: error processing package unscd (--configure):
old unscd package postinst maintainer script subprocess failed with exit
status 22
Setting up libbsd0:amd64 (0.12.2-2+b1) ...
Setting up libstdc++6:amd64 (16-20260322-1) ...
Setting up liblz4-1:amd64 (1.10.0-6) ...
Setting up passwd (1:4.19.3-2) ...
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
Shadow passwords are now on.
Setting up libapt-pkg7.0:amd64 (3.2.0) ...
Setting up adduser (3.155) ...
Setting up apt (3.2.0) ...
Setting up debian-security-support (1:14+2026.03.22) ...
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
cannot connect to /var/run/nscd/socket
Processing triggers for libc-bin (2.42-14) ...
Errors were encountered while processing:
unscd
E: Sub-process env returned an error code (1)
E: setup failed: E: apt-get -o Dir::Bin::dpkg=env -o
DPkg::Options::=--unset=TMPDIR -o DPkg::Options::=dpkg --yes install
-oAPT::Status-Fd=<$fd> -oDpkg::Use-Pty=false debian-security-support unscd apt
failed: process exited with 100 and error in console output
W: hooklistener errored out: E: received eof on socket
I: main() received signal PIPE: waiting for setup...
I: removing tempdir /tmp/mmdebstrap.dVIrMerXYq...
E: mmdebstrap failed to run
