[Debian-iot-maintainers] Bug#1128131: mosquitto won't start due to missing libdlt.so.2
Nick Black (Public gmail account)
dankamongmen at gmail.com
Sun Feb 15 23:51:17 GMT 2026
Package: mosquitto
Version: 2.0.22-5
Severity: grave
Justification: renders package unusable
X-Debbugs-Cc: dankamongmen at gmail.com
Dear Maintainer,
Since the recent upgrade of libdlt2 from 2.18.11-5 to 3.0.0-2, mosquitto
does not start, failing to link libdlt.so.2. libdlt.so.3 is installed by
the more recent libdlt2 package.
[qgp](130) $ ldd /usr/sbin/mosquitto
linux-vdso.so.1 (0x00007f620ffd9000)
libwrap.so.0 => /usr/lib/x86_64-linux-gnu/libwrap.so.0 (0x00007f620ff58000)
libsystemd.so.0 => /usr/lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f620fe3f000)
libdlt.so.2 => not found
libssl.so.3 => /usr/lib/x86_64-linux-gnu/libssl.so.3 (0x00007f620fd32000)
libm.so.6 => /usr/lib/x86_64-linux-gnu/libm.so.6 (0x00007f620fc3c000)
libwebsockets.so.19 => /usr/lib/x86_64-linux-gnu/libwebsockets.so.19 (0x00007f620fbba000)
libcrypto.so.3 => /usr/lib/x86_64-linux-gnu/libcrypto.so.3 (0x00007f620f400000)
libc.so.6 => /usr/lib/x86_64-linux-gnu/libc.so.6 (0x00007f620f20a000)
/lib64/ld-linux-x86-64.so.2 (0x00007f620ffdb000)
libcap.so.2 => /usr/lib/x86_64-linux-gnu/libcap.so.2 (0x00007f620fbae000)
libz.so.1 => /usr/lib/x86_64-linux-gnu/libz.so.1 (0x00007f620fb8e000)
libzstd.so.1 => /usr/lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f620fac2000)
[qgp](0) $
-- System Information:
Debian Release: forky/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.19.0 (SMP w/16 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages mosquitto depends on:
ii adduser 3.154
ii init-system-helpers 1.69
ii libc6 2.42-13
ii libcjson1 1.7.19-2
ii libdlt2 3.0.0-2
ii libmosquitto1 2.0.22-5
ii libssl3t64 3.5.5-1
ii libsystemd0 259.1-1
ii libwebsockets19t64 4.3.5-3
ii libwrap0 7.6.q-36+b2
ii sysvinit-utils 3.15-6
mosquitto recommends no packages.
Versions of packages mosquitto suggests:
ii apparmor 4.1.6-2
-- Configuration Files:
/etc/mosquitto/mosquitto.conf changed [not included]
/etc/mosquitto/pwfile.example [file not found]
-- no debconf information
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