I have two Ubuntu VMs running in Azure. One is our test server and the other is production. I've just sudo apt updgrade
on our test server and rebooted and the message I'm getting now is New release '18.04.1 LTS' available.
When I run do-release-upgrade
I get the following output:
Checking package manager
Continue running under SSH?
This session appears to be running under ssh. It is not recommended to perform a upgrade over ssh currently because in case of failure it is harder to recover.
If you continue, an additional ssh daemon will be started at port '1022'. Do you want to continue?
Continue [yN]
So Azure has a Serial Console in preview. I tried starting that and I get the following message:
The serial console connection to the VM encountered an error: 'Not Found' (404) - Unable to retrieve boot diagnostics settings for 'server name'. To use serial console, ensure that boot diagnostics is enabled for this VM.
So what are the implications of enabling boot diagnostics on my test and production servers? Is it a good practice to enable boot diagnostics on a production server and is a restart required? I'm looking for some useful guidance.