Linux Mint 20.2 logs not available

[imxaditya21]

So I've been facing some problem with application from like a month. These problems mainly include "apps not opening" situation.
Remember each of these apps was working, and I don't remember any specific update which might have caused this dysfunctionality.

I can't open firewall: Clicking on Firewall app from menu opens up a password prompt as usual, the Firewall icon appears in the panel, and then disappears.

I can't open protonvpn: Same thing happened as mentioned above.

Logs: When I open logs, I see no result, everything empty. Each section of logs(important, All, applications, system, security, and Hardware) is empty(No Results).

When I open Firewall from terminal using command

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gufw

it shows:

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Traceback (most recent call last):
  File "/usr/share/gufw/gufw/gufw.py", line 30, in <module>
    gufw = Gufw(controler.get_frontend())
  File "/usr/share/gufw/gufw/gufw/view/gufw.py", line 80, in __init__
    self._set_initial_values()
  File "/usr/share/gufw/gufw/gufw/view/gufw.py", line 283, in _set_initial_values
    self.listening = ListeningReport(self)
  File "/usr/share/gufw/gufw/gufw/view/listening.py", line 35, in __init__
    self._show_report()
  File "/usr/share/gufw/gufw/gufw/view/listening.py", line 48, in _show_report
    self._view_report(report, self.previous_report)
  File "/usr/share/gufw/gufw/gufw/view/listening.py", line 83, in _view_report
    self.gufw.listening_model.set_value(iter_row, 1, int(line_split[1].strip())) # port
ValueError: invalid literal for int() with base 10: 'WARN:'

The problem with protonVPN was discussed with their customer care executive, he also couldn't solve it, if you are interested I can share more info on protonVPN, but I request you to focus on Firewall and Logs issue mainly.

Thank You in advance. Any help is appreciated.


also:

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imxaditya@lol:~$ inxi -Fxz
System:
  Kernel: 5.4.0-90-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Cinnamon 5.0.7 Distro: Linux Mint 20.2 Uma 
  base: Ubuntu 20.04 focal 
Machine:
  Type: Laptop System: Dell product: Inspiron 5559 v: N/A serial: <filter> 
  Mobo: Dell model: 07JM0H v: A00 serial: <filter> UEFI [Legacy]: Dell 
  v: 1.5.2 date: 07/18/2018 
Battery:
  ID-1: BAT0 charge: 16.3 Wh condition: 16.3/41.4 Wh (39%) 
  model: SMP DELL VN3N047 status: Full 
CPU:
  Topology: Dual Core model: Intel Core i3-6100U bits: 64 type: MT MCP 
  arch: Skylake rev: 3 L2 cache: 3072 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 18399 
  Speed: 757 MHz min/max: 400/2300 MHz Core speeds (MHz): 1: 756 2: 736 
  3: 736 4: 741 
Graphics:
  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Dell driver: i915 
  v: kernel bus ID: 00:02.0 
  Display: x11 server: X.Org 1.20.11 driver: modesetting 
  unloaded: fbdev,vesa resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 21.0.3 
  direct render: Yes 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell 
  driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
  Device-2: Generalplus USB Audio Device type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-2:5 
  Sound Server: ALSA v: k5.4.0-90-generic 
Network:
  Device-1: Intel Wireless 3160 driver: iwlwifi v: kernel port: f040 
  bus ID: 01:00.0 
  IF: wlp1s0 state: up mac: <filter> 
  Device-2: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell 
  driver: r8169 v: kernel port: e000 bus ID: 02:00.0 
  IF: enp2s0 state: down mac: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 129.47 GiB (13.9%) 
  ID-1: /dev/sda vendor: Western Digital model: WD10JPVX-75JC3T0 
  size: 931.51 GiB 
Partition:
  ID-1: / size: 20.96 GiB used: 15.40 GiB (73.5%) fs: ext4 dev: /dev/sda1 
  ID-2: /home size: 68.25 GiB used: 19.54 GiB (28.6%) fs: ext4 
  dev: /dev/sda6 
  ID-3: swap-1 size: 1.86 GiB used: 688.5 MiB (36.1%) fs: swap 
  dev: /dev/sda5 
Sensors:
  System Temperatures: cpu: 44.0 C mobo: 37.0 C sodimm: 36.0 C 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 257 Uptime: 10h 15m Memory: 3.55 GiB used: 2.27 GiB (64.0%) 
  Init: systemd Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17 inxi: 3.0.38

[spamegg]

I have seen this gufw issue before. It was a Python version problem if I remember correctly. The user had installed a different version of Python, removed the system-installed Python. But this is just a guess, it might be some other issue.

I have no idea about protonvpn.

The Logs application might also be using Python (again just a guess). Can you at least see the logs in the /var/log folder? Are they there? Mine looks like this:

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 ➜ ls /var/log
apache2        dist-upgrade  gpu-manager.log  mintsystem.log         syslog.1
apt            dmesg         hp               mintsystem.timestamps  timeshift
aptitude       dmesg.0       installer        mintupdate.log         ubuntu-advantage-timer.log
aptitude.1.gz  dmesg.1.gz    journal          openvpn                ubuntu-system-adjustments-adjust-grub-title.log
atop           dmesg.2.gz    kern.log         private                ubuntu-system-adjustments-start.log
auth.log       dmesg.3.gz    lastlog          samba                  ubuntu-system-adjustments-stop.log
btmp           dmesg.4.gz    lightdm          speech-dispatcher      wtmp
cups           dpkg.log      miktex           syslog                 Xorg.0.log

[imxaditya21]

It was a Python version problem if I remember correctly. The user had installed a different version of Python, removed the system-installed Python.

Yeah I've seen that too, may have tried there solution but don't remember correctly.

Can you at least see the logs in the /var/log folder? Are they there?

Yes, I can access that, using the command

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ls /var/log/

here it is:

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alternatives.log    dmesg.4.gz
alternatives.log.1  dpkg.log
apt                 dpkg.log.1
boot.log            gpu-manager.log
boot.log.1          lightdm
boot.log.2          mintsystem.log
boot.log.3          mintsystem.timestamps
boot.log.4          timeshift
boot.log.5          ubuntu-advantage-timer.log
cups                ubuntu-advantage-timer.log.1
dmesg               ubuntu-system-adjustments-adjust-grub-title.log
dmesg.0             ubuntu-system-adjustments-start.log
dmesg.1.gz          ubuntu-system-adjustments-stop.log
dmesg.2.gz          Xorg.0.log
dmesg.3.gz          Xorg.0.log.old

What to do now? Thanks

[spamegg]

Not sure where to go from here, hopefully someone else has ideas. What does the following say?

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python3 --version
which python3
python --version
which python

[imxaditya21]

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imxaditya@lol:~$ python3 --version
Python 3.8.10
imxaditya@lol:~$ which python3
/usr/bin/python3
imxaditya@lol:~$ python --version
Python 2.7.18
imxaditya@lol:~$ which python
/usr/bin/python

[karlchen]

Hi, folks.

By the way, the aplication (Gnome) Logs does not read and display the (pure text) logfiles in the directory /var/log. gnome-system-log did / does.
The Gnome Logs application reads and displays the content of the systemd journal.
The systemd journal can also be inspected by using the terminal command journalctl. - journalctl has got a lot of different commandline options. Check out with the help of "man journalctl".
The systemd journal might (need not, but migh) give hints why a number of applications do not work.

Regards,
Karl

[spamegg]

Thanks karlchen, didn't know that!

imxaditya21 That looks OK.

This might be a bug in gufw https://github.com/costales/gufw/issues/9 There is a patch mentioned there by the developer but I'm not sure if it's safe to try. It seems like the cause of the problem might lie somewhere else, and the developer is "fixing the bug" by avoiding certain warnings to prevent it from crashing.

Maybe there is something wrong with your system services? What does this say?

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systemctl status ufw.service

And this:

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systemctl status rsyslog.service

How about

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journalctl | grep ufw

[karlchen]

Hi.

journalctl | grep ufw will appear to hang forever and never display anything.
Reasons:
journalctl without any commandline arguments will want to display the complete system journal, which is still on the disk. It will do so one screenfull at a time and then wait for a keypress before displaing the next screenfull.
I.e. journalclt already pipes its output through a pager. This is why the second pipe | grep ufw will never receive any input and you will never see any screen output.

Assuming that you want to inspect only the system journal from system start till now, this commandline would work:
journalctl -b --no-pager |grep -i "ufw" | less
Display the current system session. Do not stop on every screenfull. Pipe the output stream and grep for "ufw" (lower case or uppercase). Pipe this output through the pager less

At least it worked here on my system.

Regards,
Karl

[imxaditya21]

@spamegg here you go:
imxaditya@lol:~$ systemctl status ufw.service
● ufw.service - Uncomplicated firewall
Loaded: loaded (/lib/systemd/system/ufw.service; enabled; vendor preset: e>
Active: active (exited) since Thu 2021-12-09 08:42:39 IST; 51min ago
Docs: man:ufw(8)
Process: 342 ExecStart=/lib/ufw/ufw-init start quiet (code=exited, status=0>
Main PID: 342 (code=exited, status=0/SUCCESS)
imxaditya@lol:~$ systemctl status rsyslog.service
● rsyslog.service - System Logging Service
Loaded: loaded (/lib/systemd/system/rsyslog.service; enabled; vendor prese>
Active: active (running) since Thu 2021-12-09 08:42:47 IST; 51min ago
TriggeredBy: ● syslog.socket
Docs: man:rsyslogd(8)
https://www.rsyslog.com/doc/
Main PID: 760 (rsyslogd)
Tasks: 4 (limit: 4253)
Memory: 3.1M
CGroup: /system.slice/rsyslog.service
└─760 /usr/sbin/rsyslogd -n -iNONE
imxaditya@lol:~$ journalctl | grep ufw
Hint: You are currently not seeing messages from other users and the system.
Users in the 'systemd-journal' group can see all messages. Pass -q to
turn off this notice.
No journal files were opened due to insufficient permissions.
imxaditya@lol:~$ sudo journalctl | grep ufw
[sudo] password for imxaditya:
Dec 09 08:43:56 lol rsyslogd[760]: file '/var/log/ufw.log': open error: Permission denied [v8.2001.0 try https://www.rsyslog.com/e/2433 ]

and @karlchen
Thanks for the help, but I couldn't understand anything what you just said

[spamegg]

and @karlchen
Thanks for the help, but I couldn't understand anything what you just said

It's OK, he was just pointing out my mistake, as I am not familiar with journalctl (looks like it has hundreds of thousands of lines of output) and out of my depth here. Apologies for the misleading.
Anyway, hopefully someone else has ideas. The Github issue seems promising.