Hi, We are using ntp for a long time in our product, everything was fine till Debian 10 but starting from Debian 11 - it does not allow me to install ntp or ntpsec in headless way (same behaviour for both).
Excerpts of log from /var/log/installer/syslog: ----------------------------------------------- Mar 22 07:35:57 in-target: Building dependency tree... Mar 22 07:35:57 in-target: Reading state information... Mar 22 07:35:57 in-target: Mar 22 07:35:57 in-target: The following additional packages will be installed: Mar 22 07:35:57 in-target: ntpsec ntpsec-ntpdate python3-ntp Mar 22 07:35:57 in-target: Suggested packages: Mar 22 07:35:57 in-target: certbot ntpsec-doc ntpsec-ntpviz Mar 22 07:35:57 in-target: The following packages will be REMOVED: Mar 22 07:35:57 in-target: systemd-timesyncd Mar 22 07:35:57 in-target: The following NEW packages will be installed: Mar 22 07:35:57 in-target: meta-ntp-install ntpsec ntpsec-ntpdate python3-ntp Mar 22 07:35:57 in-target: 0 upgraded, 4 newly installed, 1 to remove and 0 not upgraded. Mar 22 07:35:57 in-target: E: Packages need to be removed but remove is disabled. ---------------------------------------------------------------------- If try to install it manually it gets installed but systemd-timesyncd seems to have strange behaviour, it is marked to be removed, console log of manual installation is below: --------------------------------------------------------------------- vi100@myserver:~$ sudo apt-get install ntpsec ntpsec-ntpdate Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: python3-ntp Suggested packages: certbot ntpsec-doc ntpsec-ntpviz The following packages will be REMOVED: systemd-timesyncd The following NEW packages will be installed: ntpsec ntpsec-ntpdate python3-ntp 0 upgraded, 3 newly installed, 1 to remove and 0 not upgraded. Need to get 465 kB of archives. After this operation, 1,155 kB of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 http://deb.debian.org/debian bullseye/main amd64 python3-ntp amd64 1.2.0+dfsg1-4 [89.1 kB] Get:2 http://deb.debian.org/debian bullseye/main amd64 ntpsec amd64 1.2.0+dfsg1-4 [337 kB] Get:3 http://deb.debian.org/debian bullseye/main amd64 ntpsec-ntpdate amd64 1.2.0+dfsg1-4 [38.8 kB] Fetched 465 kB in 2s (298 kB/s) debconf: unable to initialize frontend: Dialog debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78, <> 3.) debconf: falling back to frontend: Readline (Reading database ... 46182 files and directories currently installed.) Removing systemd-timesyncd (250.4-1~bpo11+1~tfn11+1) ... Selecting previously unselected package python3-ntp. (Reading database ... 46167 files and directories currently installed.) Preparing to unpack .../python3-ntp_1.2.0+dfsg1-4_amd64.deb ... Unpacking python3-ntp (1.2.0+dfsg1-4) ... Selecting previously unselected package ntpsec. Preparing to unpack .../ntpsec_1.2.0+dfsg1-4_amd64.deb ... Unpacking ntpsec (1.2.0+dfsg1-4) ... Selecting previously unselected package ntpsec-ntpdate. Preparing to unpack .../ntpsec-ntpdate_1.2.0+dfsg1-4_amd64.deb ... Unpacking ntpsec-ntpdate (1.2.0+dfsg1-4) ... Setting up python3-ntp (1.2.0+dfsg1-4) ... Setting up ntpsec (1.2.0+dfsg1-4) ... Created symlink /etc/systemd/system/timers.target.wants/ntpsec-rotate- stats.timer → /lib/systemd/system/ntpsec-rotate-stats.timer. Created symlink /etc/systemd/system/network-pre.target.wants/ntpsec- systemd-netif.path → /lib/systemd/system/ntpsec-systemd-netif.path. Created symlink /etc/systemd/system/multi- user.target.wants/ntpsec.service → /lib/systemd/system/ntpsec.service. Setting up ntpsec-ntpdate (1.2.0+dfsg1-4) ... Processing triggers for dbus (1.12.20-2) ... Processing triggers for man-db (2.9.4-2) ... --------------------------------------------------------------------- It seems at first sight that systemd-timesyncd is default date/time synchronization tool but it may act as full fledged NTP server? I think 'no' as per my initial docs reading. How to handle 'ntp' or 'ntpsec' headless installation? and what are the reasons for this behaviour? Thank you. Regards, Jaikumar
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