[Bug 2130843] Re: SSH sessions blocked on unavailable automounts by default in Ubuntu 25.10

blszyn 2130843 at bugs.launchpad.net
Tue Jan 6 00:21:21 UTC 2026


This seems to be fixed upstream.

https://github.com/uutils/coreutils/pull/9078

https://github.com/uutils/coreutils/issues/9072#issuecomment-3711310134

After the obviously non-conservative decision to adopt rust coreutils,
one hopes that Ubuntu will continue to align with the aggressive cadence
of upstream releases in this case and will not adopt a selectively
conservative approach by making us wait 12 months for critical bug
fixes.

** Bug watch added: github.com/uutils/coreutils/issues #9072
   https://github.com/uutils/coreutils/issues/9072

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https://bugs.launchpad.net/bugs/2130843

Title:
  SSH sessions blocked on unavailable automounts by default in Ubuntu
  25.10

Status in rust-coreutils package in Ubuntu:
  Triaged

Bug description:
  Since upgrading to 25.10, incoming ssh sessions hang when unavailable
  systemd automounts, local or remote, are present. The creation of the
  ssh session hangs from half a minute to several minutes depending on
  how many automounts it tries. Stopping the unavailable automounts
  fixes the problem. This did not happen prior to 25.10. Is this a bug
  or is there a new and preferred way of defining automounts in fstab so
  that PAM or systemd does not block incoming ssh sessions by trying to
  mount unavailable automounts?

  Here are 2 examples of fstab entries that are subsequently read by
  systemd and turned into automounts. If the device is not available
  then incoming ssh connections hang. This syntax has worked for many
  years.

  servername.local:/volume1/name /mnt/servername/name nfs
  x-systemd.automount,_netdev,x-systemd.device-
  timeout=10,nfsvers=3,noauto,user,rw,exec 0 0

  /dev/disk/by-label/corsair /media/myname/corsair auto
  x-systemd.automount,nosuid,nodev,nofail,x-gvfs-show,x-gvfs-
  name=corsair,user 0 0

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