I'm new to ec2 and don't know much about /etc/fstab.
In addition to the root volume on my ec2 instances, I have a volume mounted to
/data and a third volume for swap.
I'm having trouble figuring out the correct entries for my fstab file and I'm wondering what others have.
Mine looks like this:
UUID=711e1ec2-2a36-4405-bf46-44b43cfee42e / ext4 defaults 1 1 UUID=40bb7487-db4e-4bee-bda2-8732155ae962 /data ext4 defaults,nofail 0 2 UUID=2f67cabb-94b8-4074-b3bb-344ebc171299 swap swap defaults 0 0
I put the UUIDs in there because it seemed to me that sometimes the ec2 instance, when rebooted, might switch around the device names. What I mean by that is that the volume with
/data starts out as
/dev/nvme1n2 and then after a reboot it might be
/dev/nvme1n1. I find it hard to believe this happens so maybe I'm wrong on this.
So at any rate, I use the UUIDs in /etc/fstab just to be sure.
I'd like to know if anyone else is using device names instead of UUIDs? I'd prefer to use device names because that's less of a maintenance headache.