Hello, Using the latest coreutils from git, 'tests/df/df-output' fails due to one extra space in the header line, needed to accommodate a large disk. Log attached, but the problem is likely this: # This is a large disk... $ ./src/df -hl . Filesystem Size Used Avail Use% Mounted on /dev/sdb1 33T 2.0T 31T 6% /data2 # The test command results in two spaces before the header $ ./src/df -B1K --output=size . 1K-blocks 35139364864 possible fix attached. -assaf