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I have a Dedicated Server, there are commands about reset, reboot.

I don't know what's the difference between them, who can tell me about this?

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IPMI interfaces on a BMC typically give you two options to restart your server:

  • reboot: Send an ACPI command to the server, that instructs the OS to reboot. This is a clean reboot, usually without the need for fsck but obviously won't work if the OS is crashed or has no ACPI functionality
  • reset: Reset the underlying (possibly virtual) hardware. This creates a hard (unclean) reboot with possibly fsck or other cleanup necessary. It will work even on a crashed OS though.
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    Note that 'reset' often means a full reinstall/redeploy, not necessarily a power control command. – user1686 May 24 '19 at 10:09
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    @grawity Not in an IPMI interface. – Eugen Rieck May 24 '19 at 10:11
  • what's the meaning of clean reboot's clean? – 244boy May 24 '19 at 10:34
  • @Attie: The OQ said it between the lines :) – Eugen Rieck May 24 '19 at 10:35
  • @244boy clean means "rebooted in the way the OS intends to be rebooted", as opposed to "crashed" – Eugen Rieck May 24 '19 at 10:36

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