[kde] [Bug 498611] New: Fatal error during SDDM package installation: post-installation script returned error code 25

[Женя Бородин]

https://bugs.kde.org/show_bug.cgi?id=498611

            Bug ID: 498611
           Summary: Fatal error during SDDM package installation:
                    post-installation script returned error code 25
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: rimkamix0 at gmail.com
  Target Milestone: ---

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SUMMARY
Fatal error during SDDM package installation: post-installation script returned
error code 25


STEPS TO REPRODUCE
Ensure SDDM is installed on the system.
Perform a system upgrade.
Observe the error during the SDDM package configuration.

OBSERVED RESULT
The SDDM package installation process fails with the following error:
dpkg: error processing package sddm (--configure):
 installed sddm package post-installation script subprocess returned error exit
status 25
Errors were encountered while processing:
 sddm
E: Sub-process /usr/bin/dpkg returned an error code (1)

EXPECTED RESULT
The SDDM package should install and configure without any errors.

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 6.3.80
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.1
Kernel Version: 6.8.0-51-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Xeon® CPU E3-1220 V2 @ 3.10GHz
Memory: 15.6 ГиБ of RAM
Graphics Processor: AMD Radeon RX 570 Series

ADDITIONAL INFORMATION
Further attempts to resolve the issue result in the following:

Removing SDDM with purge: The removal process fails with similar errors.
Reinstalling SDDM: Produces the error:
E: Internal Error, No file name for sddm:amd64

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