Why was my server restarted? - "Lassie initiated boot"

Linode Staff

I got an e-mail saying "Lassie initiated boot" about an hour ago.

I did not initiate a re-boot or anything like that.
Was the host it is placed on restarted?

Are there any logs giving more information about why this happened?

3 Replies

Lassie will never initiate a shutdown or reboot of your Linode. It only will ever bring your server back up in the case that it is unexpectedly down.

For more context, a Lassie initiated boot only occurs if Lassie detects that your Linode is already powered off and there was no shutdown command issued from the Linode Manager or API. So if you did not shutdown your Linode in any way, something must have gone wrong with your Linode resulting in an unexpected shutdown.

There aren't really any logs because by the time Lassie detects that something is wrong with the server it is already powered off. Due to this there are no logs to collect besides the timestamp of when Lassie detected and then rebooted your Linode.

To see why this shutdown happened initially, you can check in the normal places from within your Linode:

Most helpful will probably be:


Or if you suspect some type of kernel panic:


You can also check specifically for logs for any services that were running that could have caused an issue. A webserver like nginx for example:


Would lassie be triggered is the system is shutdown or rebooted via ssh instead of through the website?

Yes @battlegoatracing. If you use a command to shutdown or reboot a server from within the the terminal, the Lassie service on the host will consider that to be an unexpected shutdown and reboot the server.


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