Score:0

Partition UUID was changed automatically

gq flag

I have an EC2 running on AWS cloud with the following specifications:

Operating System: Ubuntu 22.04.1 LTS AMI ID: ami-07651f0c4c315a529 AMI Name: ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-20220912 Instance Type: t3a.medium

We have Postgresql 14 installed on it with TimescaleDB extension. Sometimes the system will be rebooted due to OOM killer, but it will fail to reboot due to error message: PARTUUID does not exist.

Screenshot of the error message

The first time when this happened, we noticed it was because the PARTUUID is different from what is listed using the command:

$ blkid

We thought it was an one-off thing, we detached the EBS volume and attached it to a rescue EC2, mounted it, edited the grub.cfg and changed the PARTUUID to the correct one. However, it happens once in a while. We have raised this issue to AWS support but they said update and patching from AWS shouldn't affect the PARTUUID. So I am at a dead end here, does anyone have any idea how to troubleshoot this issue?

muru avatar
us flag
Does the filesystem UUID change? If not, use that instead
Kent Ho avatar
gq flag
you mean in the grub.cfg file or from the command blkid? actually, both UUID and PARTUUID don't change from command blkid, it is the PARTUUID in grub.cfg that was changed automatically.
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