NVIDIA NVOS User Manual for InfiniBand Switches v25.02.5002

Control and Power Commands

nv show system reboot

Show system reboot information.

Syntax Description

N/A

Default

N/A

History

25.02.2002

Example

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admin@nvos:~$ nv show system reboot              operational                          applied ---------  -----------------------------------  ------- [history]                                               reason   gentime  2022_06_02_07_32_05                             reason   Hardware - Other (Reset from ComEx)             user     N/A                                          

REST API

GET https://<ip>/nvue_v1/system/reboot

Related commands

Notes

nv show system reboot reason

Show the system reboot reason.

Syntax Description

N/A

Default

N/A

History

25.02.2002

Example

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admin@nvos:~$ nv show system reboot reason           operational                          applied -------  -----------------------------------  ------- gentime  2022_06_02_07_32_05                           reason   Hardware - Other (Reset from ComEx)           user     N/A                                          

REST API

GET https://<ip>/nvue_v1/system/reboot/reason

Related commands

Notes

nv show system reboot history

Show the system reboot history.

Syntax Description

N/A

Default

N/A

History

25.02.2002

Example

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admin@nvos:~$ nv show system reboot history     gentime              reason                               user --  -------------------  -----------------------------------  ---- 1   2022_06_02_07_32_05  Hardware - Other (Reset from ComEx)  N/A

REST API

GET https://<ip>/nvue_v1/system/reboot/history

Related commands

Notes

nv action reboot system [mode {halt | cold | immediate}] [force]

Reboot switch system.

Syntax Description

flag

  • halt: Shuts down the system

  • cold: Allow a controlled shutdown by notifying all running processes that the system is going down

  • immediate: Reboot system immediately without notifying any running processes

force

Force the action without asking for user confirmation.

Default

N/A

History

25.02.2002

25.02.5002 Updated reboot modes

Example

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admin@nvos:~$ nv action reboot system Configuration has been modified, but not saved. Type [y] to reboot the system without saving configuration. Type [N] to abort.   Do you want to continue? [Y/N] N System reboot aborted by user

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admin@nvos:~$ nv action reboot system mode halt Type [y] to halt the system. Type [N] to abort. WARNING: This operation will shut down the system. You will NOT be able to turn on the system remotely.   Do you want to continue? [y/N]

REST API

POST https://<ip>/nvue_v1/system

Related commands

nv action install platform firmware files

Notes

  • The prompt will be displayed only if there is unsaved configuration on the switch. Otherwise, the reboot will be performed as usual.

  • Using the halt flag will show the prompt unless force flag is passed.

  • Using the immediate flag will not trigger the firmware upgrade flow that part of normal reboot.

  • If the switch is in a fatal state, it will exit that state once it comes up.

  • `nv action reboot system` will still work as usual which is equivalent to `nv action reboot system mode cold`

© Copyright 2025, NVIDIA. Last updated on Aug 13, 2025.