雖然網路上很好找資料，但實際是真的在趕的時候根本被時間追著跑；一個接一個要弄。先說本貓大學化工材料，踏入IT純粹是因為老闆想自己弄檔案伺服器，大學工程念了點原文書因此資訊收集統整勉勉強強。
老闆架設的是新電腦
AMD Ryzen 3600/ASUS PRIME X570-PRO/CSM沒有ACPI的問題
自己弄的老電腦
Intel Core i5-4440/H81M-C就有FreeBSD關機後重開的問題。
之前查過印象中好像是sysctl *.efi.poweroff要設為0之類的，後面又遇到一次直接記錄下來。大意是FreeBSD 13.0-RELEASE關機機制從ACPI變為EFI，詳細有時間再查作業系統的關機機制。挖坑給自己跳...秉著用能瞭解物體運作原理和設定能讓工作和生活過得更好。why not? : h
# shutdown -p now
the system will reboot instead of shutting down
"It turns out that FreeBSD 13.0 changed the default power off mechanism from ACPI to EFI" from mib Dabbler, details in the second reference.
os: TrueNAS core 13.1-RELEASE-p9
System-Tunables-
variable: hw.efi.poweroff
value: 0
type: SYSCTL
For FreeBSD
# sysctl hw.efi.poweroff=0
or
add "hw.efi.poweroff=0" to "/etc/sysctl.conf" for good
For TrueNAS core
System-Tunables
Variabel: hw.efi.poweroff
Value: 0
Type: SYSCTL
Description: not shutting down on ACPI shutdown(自行設定，呱~)
Enabled: yes
References
- Mainboard restarts by itself after FreeBSD shutdown
https://forums.freebsd.org/threads/mainboard-restarts-by-itself-after-freebsd-shutdown.79614/ - 12.0-U8.1 -> 13.0-U2 poweroff problem & solution
https://www.truenas.com/community/threads/12-0-u8-1-13-0-u2-poweroff-problem-solution.104813/
