脏关机后死机：NVRAM 内容无效...系统无法启动并显示消息

适用于

• ONTAP
• FAS

问题

• 发生脏关机，节点无法启动。

• 从 BMC CLI 访问时，Loader 提示的状态，即使 boot_ontap 从 Loader 系统发生 PANIC 且无法重新启动。

PANIC  : NVRAM contents are invalid...
version: 9.8P6: Tue Aug  3 12:23:18 EDT 2021
conf : x86_64.optimize
cpuid = 0
KDB: stack backtrace:
vpanic() at vpanic+0x70d/frame 0xfffff7005c84fbf0
panic() at panic+0x43/frame 0xfffff7005c84fc50
sk_panic() at sk_panic+0x63/frame 0xfffff7005c84fcb0
boot_nv_jettison() at boot_nv_jettison+0xbb/frame 0xfffff7005c84fce0
boot_from_disk() at boot_from_disk+0x1df1/frame 0xfffff7005c850250
boot_manager() at boot_manager+0x1b7/frame 0xfffff7005c850280
rc_main() at rc_main+0x7f/frame 0xfffff7005c8502e0
fork_exit() at fork_exit+0xc7/frame 0xfffff7005c850330
fork_trampoline_sk() at fork_trampoline_sk+0xe/frame 0xfffff7005c850330
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
Uptime: 2m50s
ahcich2: AHCI reset done: devices=00000001
PANIC: NVRAM contents are invalid...   in SK process rc on release 9.8P6 (C) on Sat Jan  7 01:05:13 GMT 2023
version: 9.8P6: Tue Aug  3 12:23:18 EDT 2021
compile flags: x86_64.optimize

• 检查 bootarg.init.boot_recovery，结果见数字"8"。

LOADER-B> printenv bootarg.init.boot_recovery

Variable Name        Value
-------------------- --------------------------------------------------
bootarg.init.boot_recovery 8

• 即使使用以下命令删除不良标志，系统仍然无法启动。

LOADER-B> priv set advanced

LOADER-B*> unsetenv bootarg.init.boot_recovery

LOADER-B*> saveenv

LOADER-B*> boot_ontap