/var/log/btmp - no such file after the NXOS 10.3(4a)M upgrade

[leodlsrt]

Hi,
I have upgraded my Cisco Nexus C93180YC-FX yesterday from NXOS 10.2(6)M to NXOS 10.3(4a)M, but I seem that I have an error when I make "sh logging last 10".

2024 Apr 30 09:39:09 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15277]
2024 Apr 30 09:39:13 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15292]
2024 Apr 30 09:39:15 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15301]
2024 Apr 30 09:39:18 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15313]
2024 Apr 30 09:39:22 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15356]
2024 Apr 30 09:39:25 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15433]
2024 Apr 30 09:41:26 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such
 file or directory - dcos_sshd[15433] (message repeated 1 time)

I don't find any solution on the Cisco forum and doesn't find a bug on the Cisco Search Bug console.

Do you have an idea to resolve it or its a bug of the version? 

Thanks a lot.
Léo

[marce1000]

 - This seems to me a problem of the underlying linux os being used ; wait a bit longer and or after a day it may get resolved after for instance an action from logrotate (settings and actions - such as creating the file again)

 M.

[leodlsrt]

Hi,
After some days, we have the same problem on NXOS 10.3(4a)M...

edge01.par03(config)# sh logging last 5
2024 May  2 22:51:20 edge01.par03 %ETHPORT-5-IF_UP: Interface Ethernet1/12 is up in mode access
2024 May  2 22:51:52 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such file or directory - dcos_sshd[28420]
2024 May  2 22:52:07 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such file or directory - dcos_sshd[28420] (message repeated 1 time)
2024 May  2 22:52:07 edge01.par03 %DAEMON-2-SYSTEM_MSG: fatal: Timeout before authentication for 111.12.45.85 port 51090 - dcos_sshd[27451]
2024 May  2 22:52:38 edge01.par03 %DAEMON-3-SYSTEM_MSG: error: Unable to open the btmp file /var/log/btmp: No such file or directory - dcos_sshd[29010]

Anyone have a solution to patch this or I need to open a bug on the Cisco Platform ? 

Thanks in advance,
Sincerely
Léo