core-initrd: make Azure kernels reboot upon panic #15123
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Add the "panic=60" kernel cmdline option for Azure kernels in order to make them reboot after 60s upon a panic during boot. This will be relevant for implementing a fallback mechanism in nullboot, allowing rollbacks in the event of a faulty kernel upgrade. The 60s timeout is chosen to allow easier collection of console logs during troubleshooting.
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