skip-rootfs.log ( failed)

test link: tests/df/skip-rootfs.sh
SKIP: tests/df/skip-rootfs
==========================

Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/root       75085112 55697364  19371364  75% /
devtmpfs         8186144        0   8186144   0% /dev
tmpfs            8189780       84   8189696   1% /dev/shm
tmpfs            3275916     1104   3274812   1% /run
tmpfs               5120        0      5120   0% /run/lock
/dev/sdb16        901520    60648    777744   8% /boot
/dev/sdb15        106832     6250    100582   6% /boot/efi
/dev/sda1       76829444  4194336  68686668   6% /mnt
tmpfs            1637956       12   1637944   1% /run/user/1001
skip-rootfs.sh: skipped test: no rootfs in mtab
SKIP tests/df/skip-rootfs.sh (exit status: 77)