Data Partition that we previously mounted on a directory of our choice on reboot gets mounted on /

Question

Has anyone else seen a similar issue? Data Partition that we previously mounted on a directory of our choice on reboot gets mounted on / Steps we took: 1. We created a B4ms VM using the most recent Red Hat Enterprise Linux (8.2) with a 1TB Data Disk 2. Mounted /dev/sdb1 manually on /srv/abc successfully. 3. Created a file on /srv/abc successfully. 4. List partition in /etc/fstab using the name (for us it was /dev/sdb1) to mount to a specified directory (/srv/abc) 5. Reboot and /dev/sdb1 was mounted to /boot 6. Reboot and /dev/sdb1 was mounted to /mnt 7. Modified /etc/fstab for the device to use the UUID rather than /dev/sdb1 8. Reboot and /dev/sdb1 was still mounted incorrectly 9. Backed out the /etc/fstab change 10. Reboot and /dev/sdb1 was mounted on /mnt 11. 'umount'ed /mnt and /srv/abc reappeared with the file indicating data would be lost on reboot. 12. Reboot and /dev/sdb1 appeared correctly mounted on /srv/abc, and contained the file created in step 3 This incorrect mounting "feature" has also appeared in other Azure Linux deployments. Team member saw it in an Ubuntu site 2 weeks ago. Using the information from our experience, the site on Ubuntu was recovered to normal operation.