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Bug 2048011

Summary: Unit name xvnc@.service is missing the instance name
Product: Red Hat Enterprise Linux 9 Reporter: Jiri Jaburek <jjaburek>
Component: tigervncAssignee: Jan Grulich <jgrulich>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 9.0CC: jgrulich, rlemosor, tpelka, tpopela
Target Milestone: rcKeywords: Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: tigervnc-1.12.0-3.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-11-15 09:59:59 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Jiri Jaburek 2022-01-29 03:22:29 UTC
Description of problem:

Removing tigervnc-server shows the following warning:

Running transaction
  Preparing        :                                                        1/1 
  Running scriptlet: tigervnc-server-1.11.0-20.el9.x86_64                   1/1 
Failed to stop xvnc@.service: Unit name xvnc@.service is missing the instance name.
See system logs and 'systemctl status xvnc@.service' for details.

  Erasing          : tigervnc-server-1.11.0-20.el9.x86_64                   1/1 
  Running scriptlet: tigervnc-server-1.11.0-20.el9.x86_64                   1/1 


This is likely caused by

preuninstall scriptlet (using /bin/sh):
 
if [ $1 -eq 0 ] && [ -x /usr/bin/systemctl ]; then 
    # Package removal, not upgrade 
    if [ -d /run/systemd/system ]; then 
          /usr/bin/systemctl --no-reload disable --now xvnc@.service || : 
    else 
          /usr/bin/systemctl --no-reload disable xvnc@.service || : 
    fi 
fi 
 
if [ $1 -eq 0 ] && [ -x /usr/bin/systemctl ]; then 
    # Package removal, not upgrade 
    if [ -d /run/systemd/system ]; then 
          /usr/bin/systemctl --no-reload disable --now xvnc.socket || : 
    else 
          /usr/bin/systemctl --no-reload disable xvnc.socket || : 
    fi 
fi


I'm not a systemd expert, but AFAIK the '@' syntax is for starting multiple instances from one defined service, ie. 'xvnc@first' , 'xvnc@second', etc.

Not sure if it makes sense stopping these from preuninstall, but if you want to do so, use a wildcard:

  systemctl stop 'xvnc@*.service'
  systemctl disable xvnc@.service


Version-Release number of selected component (if applicable):
tigervnc-server-1.11.0-20.el9

Comment 1 Jan Grulich 2022-02-15 12:20:41 UTC
This is not a critical issue so we can move it to RHEL 9.1.

Comment 9 errata-xmlrpc 2022-11-15 09:59:59 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (tigervnc bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:7986