If you get this error message upon booting up chances are it's a simple fix.
My Debian system would boot but would be delayed with a 1 min and 30s error message.
Code:
A start job is running for dev-disk uuid (exact #'s of the device/HDD) 1 min 30s
To correct the error run blkid and compare it's output to that which is in your /etc/fstab file.
If the 2 files do not match than change the UUID in fstab to that which is shown by blkid.
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