Webmin / Bugs / #5441 Undefined subroutine &WebminCore::get_raw called at /usr/share/webmin/authentic-theme/authentic.pl line 44.

Ilia - 2021-01-07

Manually restart Webmin:

/etc/webmin/restart

Last edit: Ilia 2021-01-08
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Rick Pearson - 2021-01-07

Same issue:

Software error:
Undefined subroutine &WebminCore::get_raw called at /usr/share/webmin/authentic-theme/authentic.pl line 44.
For help, please send mail to this site's webmaster, giving this error message and the time and date of the error.

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Ilia - 2021-01-07

When you restart Webmin, does the pid change?

Does it only happen in that 3d party module?

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Rick Pearson - 2021-01-07

PID does change:

ubuntu@prod-admin:~$ ps -f | grep miniserv
ubuntu 16564 581 0 22:23 pts/1 00:00:00 grep --color=auto miniserv
ubuntu@prod-admin:~$ sudo /etc/webmin/restart
Stopping Webmin server in /usr/share/webmin
Starting Webmin server in /usr/share/webmin
ubuntu@prod-admin:~$ ps -f | grep miniserv
ubuntu 16635 581 0 22:23 pts/1 00:00:00 grep --color=auto miniserv
ubuntu@prod-admin:~$

Only occurs in the third party module. Has been reported to them so we'll see where the issue lies.

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Rick Pearson - 2021-01-07

(sorry that previous process list is wrong):

ubuntu@prod-admin:~$ ps -ef | grep miniserv
root 16592 1 0 22:23 ? 00:00:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
ubuntu 17607 581 0 22:25 pts/1 00:00:00 grep --color=auto miniserv
ubuntu@prod-admin:~$ sudo /etc/webmin/restart
Stopping Webmin server in /usr/share/webmin
Starting Webmin server in /usr/share/webmin
ubuntu@prod-admin:~$ ps -ef | grep miniserv
root 17644 1 0 22:25 ? 00:00:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
root 17669 17644 0 22:25 ? 00:00:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf
ubuntu 17687 581 0 22:25 pts/1 00:00:00 grep --color=auto miniserv
ubuntu@prod-admin:~$

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Nikola Runev - 2021-01-08

I have the same issue this morning.

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Ilia - 2021-01-08

Undefined subroutine &WebminCore::get_raw called at /usr/share/webmin/authentic-theme/authentic.pl line 44.

I think it's the context issue. If you open mentioned file on mentioned line and replace get_raw() with &get_raw() does it change anything?

However, it works just fine with all standard Webmin modules, so I assume something can be fixed on Historic System Statistics module.

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Nikola Runev - 2021-01-08

I now get a different error

Error - Perl execution failed

Undefined subroutine &main::authentic called at /usr/share/webmin/authentic-theme/index.cgi line 12.

Last edit: Nikola Runev 2021-01-08

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Ilia - 2021-01-08

Yes, it's different from what I thought at first. We'll work on fixing it.

The work around is to set preroot_username=theme-name in /etc/webmin/miniserv.conf and theme_username=theme-name in /etc/webmin/config and restart Webmin.

What matters at the moment that theme_username and preroot_username cannot be different .

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Ilia - 2021-01-08

What matters at the moment that theme_username and preroot_username cannot be different .

Cannot be set to different values (different themes)

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Rick Pearson - 2021-01-08

Ilia,

Eric Gerbier (the creator of webminstats) has a fix that works. I can only assume that he will release a new module version soon. See https://sourceforge.net/p/webminstats/tickets/3/

Thanks for your assistance wit this one.

Rick.

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Ilia - 2021-01-08

Can i see the patch?

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Rick Pearson - 2021-01-08

the problem comes from the perl shebang. I was using 'perl -w' for security checks, and it does not work any more with the last authentic-theme. You can patch my perl code with the following command :

sed -i 's/perl -w/perl/' *.pl *.cgi

to be executed in /usr/libexec/webmin/sysstats (fedora, redhat), or /usr/share/webmin/sysstats (debian, ubuntu) directory

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- Orlando - 2021-01-10
  
  hi llia,
  how can i apply this patch on Centos 7?
  
  thanks,
  
  Last edit: Orlando 2021-01-10
  
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Andreas Curti - 2021-01-09

hi rick,
many thanks, this solution helped me. My system: ubuntu arm 20.10 aarch64 (Linux 5.8.0-1011-raspi auf aarch64)
regards
andi from switzerland

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Ilia - 2021-01-09

Okay, this issue has been reproduced and fixed.

It was tricky to find out the cause, as it only affected logins with sudo-capable users.

Webmin 1.971 will have it fixed. Meanwhile, you can manually apply the patch and restart Webmin.

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Rick Pearson - 2021-01-09

Thanks Ilia.

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Jamie Cameron - 2021-01-09

For anyone seeing this, the 1.971 development release of Webmin from http://www.webmin.com/devel.html has a fix for this issue.

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oldestxbox - 2021-01-10

did the miniserv fix still no joy, applied the "sed -i 's/perl -w/perl/' .pl .cgi" now working, thanks

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MobileHero - 2021-01-11

The sed command worked and fixed it. Neither manual miniserv.pl fix did, nor did Webmin 1.971.

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Ilia - 2021-01-11

The sed command worked and fixed it. Neither manual miniserv.pl fix did, nor did Webmin 1.971.

We are glad it was fixed for you!

Because we never tried to fix sysstas module and were addressing our bugs instead.

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Andreas Curti - 2021-01-12

hi Ilia
the error message is displayed in the webstat. before that I solved the problem with the patch. now there is a new version of webstat 2.20. the problem no longer arises.
I have installed the latest version of Webstat 2.20. my system Linux 5.8.0-1011-raspi on aarch64 ubuntu 20.10 and Debian Linux 9 with thinkerboard Linux 4.4.132+ on armv7l and Linux 5.10.0-1-amd64 on x86_64 with debian 11
regards
andreas

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- Ilia - 2021-01-12
  
  Hi, Andreas.
  
  Thanks for the heads up. I'm sure it will be helpful to others.
  
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#5441 Undefined subroutine &WebminCore::get_raw called at /usr/share/webmin/authentic-theme/authentic.pl line 44.

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