Question

You added a new disk (/dev/sdb) to a database server and created a single ext4 partition at /dev/sdb1. The team wants the filesystem to mount automatically at /data on every boot, and they warn that device names may shift if disks are added later. After running mkfs.ext4 /dev/sdb1 and creating /data, which approach ensures a reliable persistent mount?

Accepted Answer

Add a line to /etc/fstab referencing the partition by its UUID (from blkid), then run mount -a to verify

Answer

Add a line to /etc/fstab using /dev/sdb1 as the device, then reboot to apply the change

Answer

Run mount /dev/sdb1 /data once; systemd will remember the mapping automatically on subsequent boots

Answer

Create a symlink from /dev/sdb1 to /data and add it to /etc/rc.local