Samba on Ubuntu 20.04 stopped working after todays update: more info

Question

Check smbd.

smbd --version
Version 4.13.14-Ubuntu

Below smb.conf was working prior to today's update. from:

sudo nano /etc/samba/smb.conf

towards top of file:

# Change this to the workgroup/NT-domain name your Samba server will part of
   workgroup = CES
   client min protocol = NT1
# server string is the equivalent of the NT Description field
   server string = %h server (Samba, Ubuntu)

Bottom of file:

[Samba_Share_Private]
local master = yes
preferred master = yes
# comment needs username and password to access
path = /home/u23_admin/Samba_Share
browseable = yes
quest ok = no
writable = yes
valid users = @samba

What's wrong with this for version 4.13.14?

If not smb.conf maybe something else.

When you say “not working”, can I assume you’re seeing an error? If so what is that error? Is there anything in the log files? — matigo, Dec 15 '21 at 22:38
If you can clearly and reliably demonstrate that an update was responsible, then it's a reversion (a bug), and should be reported to the bug tracker. Please edit your question to show us the old and new version numbers of the affected package(s) located in /var/log/apt/history.log. You can just copy/paste the whole relevant line into your question. — user535733, Dec 16 '21 at 00:45
It's probably because they've finally removed SMB1 support. Can you get to your shares if you use Files (Nautilus) "Other Locations"/"Connect to Server" with smb://share.location/folder? — heynnema, Dec 16 '21 at 15:42
Does this answer your question? how to undo unsuccessful package upgrade and How to prevent updating of a specific package? — karel, Mar 14 '22 at 05:32

score 0 · Answer 1 · answered Mar 13 '22 at 03:19

For any others that come across this, I had this issue today.

After some troubleshooting, my issue turned out to be calling a network interface that was down/had no IP allocated. I recently had issues on my 10gb NIC and fell back to the 1gb port, which apparently caused smbd to core dump when the old NIC was specified for the interfaces option in smb.conf.

The following was helpful in troubleshooting, notice the warning:

sudo smbd --log-stdout -F
Failed to create /var/log/samba/cores for user 0 with mode 0700
Unable to setup corepath for smbd: File exists
smbd version 4.13.17-Ubuntu started.
Copyright Andrew Tridgell and the Samba Team 1992-2020
WARNING: no network interfaces found
daemon_ready: daemon 'smbd' finished starting up and ready to serve connections
open_sockets_smbd: No sockets available to bind to.

Samba on Ubuntu 20.04 stopped working after todays update: more info

1 Answers1