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Bug 1835351

Summary: when enabling service, check if install target exists
Product: Red Hat Enterprise Linux 8 Reporter: Ondrej <ondrej.valousek.xm>
Component: systemdAssignee: David Tardon <dtardon>
Status: CLOSED ERRATA QA Contact: Frantisek Sumsal <fsumsal>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: ---CC: dtardon, jamacku, msekleta, systemd-maint-list
Target Milestone: rcKeywords: Bugfix, Triaged
Target Release: 8.0Flags: dtardon: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: systemd-239-48.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-09 19:54:49 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 Ondrej 2020-05-13 16:41:58 UTC
Description of problem:

In case administrator makes a typo in a service definition, i.e.
{{{
[Install]
WantedBy=multiuser.target
}}}

then when enabling the service via "systemctl enable <service>" systemctl should kindly warn the poor admin that the requested target (multiuser vs multi-user) does not exist and hence the service will NOT be started automatically. 
These errors are quite hard to debug so I think SystemD should do some basic checks.

How reproducible:
always


Actual results:
systemctl blindly creates a link for the not existing target

Expected results:
systemctl should warn the admin that the target does not exist, hence the service can not be enabled

Additional info:

Comment 1 Jan Synacek 2020-05-18 15:36:28 UTC
https://github.com/systemd/systemd/pull/15834

Comment 5 Lukáš Nykrýn 2021-06-22 13:01:56 UTC
fix merged to github master branch -> https://github.com/redhat-plumbers/systemd-rhel8/pull/172

Comment 12 errata-xmlrpc 2021-11-09 19:54:49 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 (systemd 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-2021:4469