[Bug 1993478] Re: package openssh-server 1:9.0p1-1ubuntu7 failed to install/upgrade: postinstall script returned 1

[Christophe M.]

Port 
Specifies the port number that sshd(8) listens on.  The default is 22.  Multiple options of this type are permitted.  See also ListenAddress. Note: On Ubuntu, the openssh-server package is configured to use systemd socket-based activation by default. Therefore if you are using systemd with the default configuration, Port options will not be honored. Address configuration must be handled in /etc/systemd/system/ssh.socket.d instead.

# Port and ListenAddress options are not used when sshd is socket-activated,
# which is now the default in Ubuntu.  See sshd_config(5) and
# /usr/share/doc/openssh-server/README.Debian.gz for details.
------------------------------

For me, the post upgrade error didn't happen on the machine that had the
default openssh-server port 22, but on the machine that had a custom
port and bind address. I had to purge and reinstall openssh-server to
fix the broken, partially installed, package post-upgrade.

I only noticed the new message in the sshd_config configuration file
after purging/reinstalling openssh-server second time on one of my
machine. I was multitasking during the upgrade process, if there was a
message about the new port configuration being a systemd socket, I
missed it.

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Title:
  package openssh-server 1:9.0p1-1ubuntu7 failed to install/upgrade:
  postinstall script returned 1

Status in openssh package in Ubuntu:
  Triaged

Bug description:
  update failed...

  ProblemType: Package
  DistroRelease: Ubuntu 22.10
  Package: openssh-server 1:9.0p1-1ubuntu7
  ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53
  Uname: Linux 5.15.0-48-generic x86_64
  NonfreeKernelModules: cpuid tcp_diag inet_diag tls authenc echainiv esp4 xfrm_user xfrm_algo sctp ip6_udp_tunnel udp_tunnel cfg80211 veth nft_chain_nat xt_REDIRECT nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp nft_counter xt_policy nft_compat nf_tables nfnetlink bridge stp llc nls_iso8859_1 hid_generic joydev crct10dif_pclmul crc32_pclmul ghash_clmulni_intel usbhid virtio_net net_failover hid failover i2c_piix4 pata_acpi qemu_fw_cfg floppy sch_fq_codel ipmi_devintf ipmi_msghandler msr ramoops reed_solomon pstore_blk efi_pstore pstore_zone ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx libcrc32c xor raid6_pq raid1 raid0 multipath linear bochs drm_vram_helper drm_ttm_helper ttm drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt input_leds fb_sys_fops cec crypto_simd rc_core psmouse cryptd drm serio_raw virtio_scsi mac_hid
  ApportVersion: 2.23.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Wed Oct 19 08:41:28 2022
  ErrorMessage: »installiertes post-installation-Skript des Paketes openssh-server«-Unterprozess gab den Fehlerwert 1 zurück
  InstallationDate: Installed on 2019-08-13 (1162 days ago)
  InstallationMedia: Ubuntu-Server 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  Python3Details: /usr/bin/python3.10, Python 3.10.7, python3-minimal, 3.10.6-1
  PythonDetails: N/A
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.21.9ubuntu1
   apt  2.5.3
  SourcePackage: openssh
  Title: package openssh-server 1:9.0p1-1ubuntu7 failed to install/upgrade: »installiertes post-installation-Skript des Paketes openssh-server«-Unterprozess gab den Fehlerwert 1 zurück
  UpgradeStatus: Upgraded to kinetic on 2022-10-19 (0 days ago)

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