I'm crafting up a shell script (to be called by cron) that runs smartctl on the booted disk on a weekly basis. Is there a fairly universal way to determine what the boot block device is (IE – /dev/sda, /dev/hdb, etc)? The expected install would be standard, I think I could get away with using grep " / " on /etc/fstab, I'm just wondering if there's a more graceful way.
This script will specifically be deployed on Fedora and possibly Ubuntu boxes.
Best Answer
df -P / | tail -n 1 | awk '/.*/ { print $1 }'Will return the root FS block device. Not necessarily the boot device though.
Better question might be why you're not scanning SMART on all the disks in the server?