Installing the VLSI plugin on Ubuntu 20.04 (Pop!_OS), is it real?

Question

linux

Good afternoon! Colleagues, how can I install the plugin from VLIS? I'm on Pop!_OS 20.04 (Ubuntu based). I do everything according to the instructions:
https://sbis.ru/help/plugin/sbis3plugin/install?tb=tab2

I run the script from with admin rights, it climbs on servers, downloads packages, and when the installation starts, this happens:

Preinstall script
Installer Value: install
Installation of the VSIS3 Plugin 20.5204.37
OS version application is defined as pop. Correct operation of the application in this OS is not guaranteed.
Stopping the service
Failed to stop SBIS3Plugin.service: Unit SBIS3Plugin.service not loaded.
Failed to stop the service.
Stopping
sbis3plugin application: no process found
-------------
Unpacking sbis3plugin (20.5204-37) ...
Setting up sbis-libstdc++ (9.1.1-7.el7) ...
Setting up libnss3 -tools (2:3.49.1-1ubuntu1.5) ...
Setting up sbis3plugin (20.5204-37) ...
-------------
Postinstall script
Installer Value: configure
Installing a certificate for all users
/usr/sbin/update-ca-certificates
Updating certificates in /etc/ssl/certs...
1 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
Doing /usr/lib/ssl/certs
WARNING: Skipping duplicate certificate ca-certificates.crt
WARNING: Skipping duplicate certificate ca-certificates.crt
Registering autostart
Registering Chrome NMH and SbisPluginConnector, checking RC version
flag Updating ChromeNmhTransport version
ChromeNmhTransport: no process found
Registering daemon
ERROR: Specified daemon name (SBIS3Plugin) contains invalid characters
ERROR: Specified daemon name (SBIS3Plugin) contains invalid characters
Failed to register daemon. Installation not completed.
dpkg: error processing package sbis3plugin (--configure):
installed sbis3plugin package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for libc-bin (2.31- 0ubuntu9) ...
Errors were encountered while processing:
sbis3plugin
E: Sub-process /usr/bin/dpkg returned an error code (1)
apt-get install -y sbis3plugin failed

Have you encountered similar behavior? Any guesses on how it's done?

UPD: As a result, the problem was overcome by downloading and installing the plugin package manually ( https://update.sbis.ru/Sbis3Plugin/master/linux/ <package_name>).
-Next, download the version of Crypto Pro you need for your token (5, 4 KS1, 4 KS2, etc.).
-Then download and install the latest libccid libpcsclite1 pcscd pcsc-tools opensc (deb) or ccid pcscd pcsc-lite (rpm) packages.
-After that, you can try to log in through your VLSI personal account.
But at the same time, the diagnostics in the VLSI personal account freezes and does not go through to the end - it stops at the verification stage "Token Drivers - Rutoken", on the contrary, the circle is spinning and that's it ... Further verification does not go. Despite this, I managed to log in to my personal account.

Answer 1

immediately written in plain text
OS is defined as pop. Correct operation of the application in this OS is not guaranteed.
unpack the deb and put everything in its place with handles and see what doesn't work in the installation scripts.
those. finish in place.