A junior systems administrator created a new filesystem /dev/sda1 with mountpoint /data and added it to the /etc/fstab for auto-mounting. When the systems administrator tries to mount the file…

Changing the device from `/dev/sda1` to `/dev/sda2` is arbitrary and does not address why `/dev/sda1` failed to mount, assuming `/dev/sda1` is the intended device.

Modifying the `fstab` entry's options to include `auto` (to be processed by `mount -a`), `rw` (for read-write access), and `dev` (to allow interpretation of character or block special devices) is a common troubleshooting step when a filesystem refuses to mount. Incorrect or missing options in `fstab` can prevent successful mounting, and ensuring a robust set of options can resolve such issues.

Changing the mount point from `/data` to `data` (which would mean a relative path, likely from `/`) would almost certainly fail or mount in an unintended location, and is not a common fix for a refusal to mount an existing mount point.

The dump column in `/etc/fstab` is for backup utilities (specifying if the filesystem should be dumped by `dump` command) and has no bearing on whether the system can mount the filesystem.