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LightDM failsafe handler and restart directives #340

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merged 7 commits into from
Jun 10, 2024
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Merged

LightDM failsafe handler and restart directives #340

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08cac24
Update lightdm.service
wallentx Jan 4, 2024
9128c07
Create lightdm-failure-handler.service
wallentx Jan 4, 2024
df35cf2
Create lightdm-success-handler.service
wallentx Jan 4, 2024
a7d95cb
Update lightdm.service
wallentx Jan 4, 2024
2a2a2f5
Update lightdm.service RestartSec
wallentx Jan 4, 2024
e0483c1
Update lightdm-success-handler.service in the event issue.restore doe…
wallentx Jan 4, 2024
0c3b360
Only making success handler act if a restore file exists
wallentx Jan 4, 2024
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9 changes: 9 additions & 0 deletions debian/lightdm-failure-handler.service
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
[Unit]
Description=Handle LightDM failure

[Service]
Type=oneshot
ExecStart=/bin/mv /etc/issue /etc/issue.restore; /bin/sh -c 'echo -e "LightDM has failed to start. You are now in a TTY for troubleshooting...\nYou can log in and check for details in logs." > /etc/issue; /usr/bin/chvt 4'

[Install]
WantedBy=multi-user.target
11 changes: 11 additions & 0 deletions debian/lightdm-success-handler.service
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
[Unit]
Description=Reset /etc/issue after LightDM starts successfully
Requires=lightdm.service
After=lightdm.service

[Service]
Type=oneshot
ExecStart=/bin/sh -c 'test -f /etc/issue.restore && mv /etc/issue.restore /etc/issue || echo "File /etc/issue.restore not found. No restore action needed."'

[Install]
WantedBy=graphical.target
4 changes: 4 additions & 0 deletions debian/lightdm.service
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,15 @@ Description=Light Display Manager
Documentation=man:lightdm(1)
[email protected] plymouth-quit.service
After=systemd-user-sessions.service [email protected] plymouth-quit.service systemd-hostnamed.service
StartLimitIntervalSec=60s
StartLimitBurst=5
OnFailure=lightdm-failure-handler.service

[Service]
# temporary safety check until all DMs are converted to correct
# display-manager.service symlink handling
ExecStartPre=/bin/sh -c '[ "$(basename $(cat /etc/X11/default-display-manager 2>/dev/null))" = "lightdm" ]'
ExecStart=/usr/sbin/lightdm
Restart=always
RestartSec=5s
BusName=org.freedesktop.DisplayManager
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