Instance won't boot after Instance terminated by Compute Engine

[Trevor Price]

I can't get my instance to boot after it was automatically restarted. I'm looking in Operations and I see compute.instances.hostError followed by compute.instances.automaticRestart. From what I can find elsewhere it was a hardware issue and an automatic reboot was initiated and the instance was moved to new hardware. It now won't boot up. I can't connect to it via SSH in the Developer Console. 

It's being used to host multiple websites. I have two disks on it. One for the system portion and one containing website files. The system is CentOS 7.

I tried creating a new instance and creating new disks from snapshots created yesterday. I still can't get it to boot up.

I created an entirely new instance with a new system disk and tried to mount the previous disks or create from snapshots and mount them, can't get them to mount.

Anyone have any ideas for me? I'm kinda at a loss at this point. Thanks. 

[Scott Van Woudenberg]

Hi Trevor,

Have you taken a look at the serial port output to see if it contains any obvious boot/init errors?

If you are using gcloud, you can run:

$ gcloud compute instances get-serial-port-output NAME --zone ZONE

In the Developers Console, there's a "Serial Console output" link at the bottom of the instance details page.

If you don't find any smoking guns in the serial port output, send me (offline) your project ID and the instance name and I'll take a look.

Regards,

-ScottVW

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Scott Van Woudenberg

Product Manager

Google Compute Engine

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[Trevor Price]

Hi Scott,

Thanks for the fast response. I'm getting a little out of my element here. I see all kinds of stuff that could be an issue. Here is what I was seeing in the serial console output as soon as the issue arose. I can't seem to mount any snapshots, pretty much the same issue.

[Faizan (Google Cloud Support)]

Hello Trevor,

I would recommend checking fstab on your boot disk to make sure all the entries for the disks and mount points are properly set. You can attach and mounting your boot disk to another working instance to confirm the fstab entries.

I hope that helps.

Faizan