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Bug 1937580

Summary: debug-shell does not work
Product: [Fedora] Fedora Reporter: Adam Williamson <awilliam>
Component: systemdAssignee: systemd-maint
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 34CC: fedoraproject, filbranden, flepied, kasong, lnykryn, msekleta, ssahani, s, systemd-maint, yuwatana, zbyszek, z
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Hardware: All   
OS: All   
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Last Closed: 2021-03-11 19:17:44 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 1829023    

Description Adam Williamson 2021-03-11 03:09:27 UTC 
In Fedora 34 beta candidate 1, the systemd debug-shell does not work. If you enable debug-shell.service and boot, on tty9 you don't get a root shell as you should, just a flashing cursor. In the journal you get this:

-- Journal begins at Wed 2021-03-10 18:56:34 PST, ends at Wed 2021-03-10 19:05:16 PST. --
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Main process exited, code=exited, status=208/STDIN
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Scheduled restart job, restart counter is at 1.
Mar 10 18:56:36 fedora systemd[1]: Stopped Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: Started Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[508]: debug-shell.service: Failed to set up standard input: Permission denied
Mar 10 18:56:36 fedora systemd[508]: debug-shell.service: Failed at step STDIN spawning /bin/sh: Permission denied
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Main process exited, code=exited, status=208/STDIN
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Scheduled restart job, restart counter is at 2.
Mar 10 18:56:36 fedora systemd[1]: Stopped Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: Started Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Main process exited, code=exited, status=208/STDIN
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Scheduled restart job, restart counter is at 3.
Mar 10 18:56:36 fedora systemd[1]: Stopped Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: Started Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Main process exited, code=exited, status=208/STDIN
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Scheduled restart job, restart counter is at 4.
Mar 10 18:56:36 fedora systemd[1]: Stopped Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: Started Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Main process exited, code=exited, status=208/STDIN
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Scheduled restart job, restart counter is at 5.
Mar 10 18:56:36 fedora systemd[1]: Stopped Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Start request repeated too quickly.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: Failed to start Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Start request repeated too quickly.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: Failed to start Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Start request repeated too quickly.
Mar 10 18:56:36 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:36 fedora systemd[1]: Failed to start Early root shell on /dev/tty9 FOR DEBUGGING ONLY.
Mar 10 18:56:37 fedora systemd[1]: debug-shell.service: Start request repeated too quickly.
Mar 10 18:56:37 fedora systemd[1]: debug-shell.service: Failed with result 'exit-code'.
Mar 10 18:56:37 fedora systemd[1]: Failed to start Early root shell on /dev/tty9 FOR DEBUGGING ONLY.

Proposing as a Beta FE as this may well be desired for debugging issues in live env or on first boot.
Comment 1 Zbigniew Jędrzejewski-Szmek 2021-03-11 18:58:28 UTC 
Oops.
Comment 2 Zbigniew Jędrzejewski-Szmek 2021-03-11 19:05:26 UTC 
Isn't this the same as #1933902?
Comment 3 Adam Williamson 2021-03-11 19:17:44 UTC 
oh, probably yes. I think I forgot about that one. Sorry!

*** This bug has been marked as a duplicate of bug 1933902 ***