reopen 990069 thanks. With these packages installed:
24573,4> dpkg --get-selections | grep ssh clusterssh install libssh-4:amd64 install libssh-gcrypt-4:amd64 install libssh2-1:amd64 install openssh-client install openssh-server install openssh-sftp-server install ssh-askpass install sshfs install This particular system is sysv, but I think my other machines suffering this same problem were already on systemd by the time I upgraded. 24583,14> sudo grep -e ssh -e libc6 -e Restarting -e '^ [a-z]' -e Services /var/log/apt/term.log Replacing files in old package libc6:amd64 (2.28-10) ... Replacing files in old package libc6:i386 (2.28-10) ... Preparing to unpack .../06-openssh-sftp-server_1%3a8.4p1-5_amd64.deb ... Unpacking openssh-sftp-server (1:8.4p1-5) over (1:7.9p1-10+deb10u2) ... Preparing to unpack .../13-openssh-client_1%3a8.4p1-5_amd64.deb ... Unpacking openssh-client (1:8.4p1-5) over (1:7.9p1-10+deb10u2) ... Preparing to unpack .../15-openssh-server_1%3a8.4p1-5_amd64.deb ... Unpacking openssh-server (1:8.4p1-5) over (1:7.9p1-10+deb10u2) ... Preparing to unpack .../0-libc6-dev_2.31-13_amd64.deb ... Unpacking libc6-dev:amd64 (2.31-13) over (2.28-10) ... Preparing to unpack .../libc6_2.31-13_i386.deb ... De-configuring libc6:amd64 (2.28-10) ... Unpacking libc6:i386 (2.31-13) over (2.28-10) ... Preparing to unpack .../libc6_2.31-13_amd64.deb ... Unpacking libc6:amd64 (2.31-13) over (2.28-10) ... Setting up libc6:amd64 (2.31-13) ... Restarting services possibly affected by the upgrade: smbd: restarting...done. openbsd-inetd: restarting...done. exim4: restarting...done. cron: restarting...done. autofs: restarting...done. atd: restarting...done. Services restarted successfully. Setting up libc6:i386 (2.31-13) ... Preparing to unpack .../libc6-dbg_2.31-13_amd64.deb ... Unpacking libc6-dbg:amd64 (2.31-13) over (2.28-10) ... Restarting services possibly affected by the upgrade: samba-ad-dc: stopping...starting...done. smbd: stopping...starting...done. exim4: stopping...starting...done. cron: stopping...starting...done. atd: stopping...starting...done. Services restarted successfully. Preparing to unpack .../137-libssh-gcrypt-4_0.9.5-1+deb11u1_amd64.deb ... Unpacking libssh-gcrypt-4:amd64 (0.9.5-1+deb11u1) over (0.8.7-1+deb10u1) ... At this point, there's: 24572,2> ls -lA /etc/init.d/ssh* -rwxr-xr-x 1 root root 3939 Feb 1 2020 /etc/init.d/ssh -rwxr-xr-x 1 root root 4056 Mar 13 2021 /etc/init.d/ssh.dpkg-new and ssh isn't yet started - I did that manually because I knew the problem was going to arise. -- Tim Connors