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Add reboot-required indicator to waybar
Shows icon on left side when kernel update requires reboot.
Detects when running kernel's modules are missing (kernel updated
but system not rebooted).
Only shows icon when reboot is needed, otherwise hidden.
+23
-1
+7
-1
private_dot_config/waybar/config
+7
-1
private_dot_config/waybar/config
···
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3
"spacing": 0,
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"modules-left": [
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"battery#charging",
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-
"custom/dnf-updates"
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+
"custom/dnf-updates",
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"custom/reboot-required"
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],
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"modules-center": [
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"custom/clock"
···
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"on-click": "/usr/bin/makoctl dismiss -a",
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"on-click-right": "/usr/bin/makoctl reload",
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"signal": 0
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+
},
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"custom/reboot-required": {
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"exec": "~/.config/waybar/scripts/reboot-required.sh",
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+
"interval": 300,
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+
"return-type": "json"
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}
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}
+16
private_dot_config/waybar/scripts/executable_reboot-required.sh
+16
private_dot_config/waybar/scripts/executable_reboot-required.sh
···
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+
#!/bin/bash
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# Check if system reboot is required
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# Detects kernel version mismatch (running vs installed)
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running_kernel=$(uname -r)
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+
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# Check if the running kernel's modules directory exists
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if [ ! -d "/lib/modules/$running_kernel" ]; then
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# Running kernel modules missing - reboot required
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installed_kernels=$(ls -1 /lib/modules/ | sort -V | tail -1)
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echo "{\"text\":\"\", \"tooltip\":\"Reboot required: kernel $running_kernel → $installed_kernels\", \"class\":\"reboot-required\"}"
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else
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# System OK, no reboot needed - show nothing
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echo ""
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fi