fix(shutdown): be robust against forced shutdown #1643
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When a forced shutdown is issued through sending a burst of Ctrl-Alt-Del keys, systemd sends SIGTERM to all processes. This ends up killing dracut-initramfs-restore as well, preventing the script from detecting that the unpack of the initramfs is incomplete, which later causes a crash to happen when "shutdown" tries to execute from the unpacked initramfs. This fix makes sure dracut-initramfs-restore remains alive to detect the unpack failed (because cpio was killed by systemd too). Refs: * https://bugzilla.redhat.com/show_bug.cgi?id=2023665
haraldh
approved these changes
Nov 16, 2021
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When a forced shutdown is issued through sending a burst of Ctrl-Alt-Del keys, systemd sends SIGTERM to all processes. This ends up killing dracut-initramfs-restore as well, preventing the script from detecting that the unpack of the initramfs is incomplete, which later causes a crash to happen when shutdown tries to execute from the unpacked initramfs.
This fix makes sure dracut-initramfs-restore remains alive to detect the unpack failed (because cpio was killed by systemd too).
Refs:
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