| What: /sys/kernel/reboot |
| Date: November 2020 |
| KernelVersion: 5.11 |
| Contact: Matteo Croce <teknoraver@meta.com> |
| Description: Interface to set the kernel reboot behavior, similarly to |
| what can be done via the reboot= cmdline option. |
| (see Documentation/admin-guide/kernel-parameters.txt) |
| |
| What: /sys/kernel/reboot/mode |
| Date: November 2020 |
| KernelVersion: 5.11 |
| Contact: Matteo Croce <teknoraver@meta.com> |
| Description: Reboot mode. Valid values are: cold warm hard soft gpio |
| |
| What: /sys/kernel/reboot/type |
| Date: November 2020 |
| KernelVersion: 5.11 |
| Contact: Matteo Croce <teknoraver@meta.com> |
| Description: Reboot type. Valid values are: bios acpi kbd triple efi pci |
| |
| What: /sys/kernel/reboot/cpu |
| Date: November 2020 |
| KernelVersion: 5.11 |
| Contact: Matteo Croce <teknoraver@meta.com> |
| Description: CPU number to use to reboot. |
| |
| What: /sys/kernel/reboot/force |
| Date: November 2020 |
| KernelVersion: 5.11 |
| Contact: Matteo Croce <teknoraver@meta.com> |
| Description: Don't wait for any other CPUs on reboot and |
| avoid anything that could hang. |
| |
| What: /sys/kernel/reboot/hw_protection |
| Date: April 2025 |
| KernelVersion: 6.15 |
| Contact: Ahmad Fatoum <a.fatoum@pengutronix.de> |
| Description: Hardware protection action taken on critical events like |
| overtemperature or imminent voltage loss. |
| Valid values are: reboot shutdown |
