I have recently installed 3 Ubuntu 20.04 nodes. In one of them the system was installed on /dev/sdb instead of /dev/sda (apparently the sda label was used by the usb stick from where I installed the OS).
I would like to, for consistency (as I will run some Ansible playbooks working with the others disks on the nodes), all my system's nodes reside on /dev/sda.
So, the questions are:
- How do I change (if possible) an already installed system on /dev/sdb to /dev/sda?
- How do I prevent this situation in the future by forcing the installation into /dev/sda?
PD: I have search in this for some hours... So far I have found only a few topics in the internet related to this... 1 and 2 would be my bests choices, but still I haven't found anything really usefull for this specific case.