fix taking rootfs as filesystem by mistake (#11554)
fix taking rootfs as filesystem by mistake (#11554)

* fix adding rootfs as filesystem by mistake

Signed-off-by: onlyacat <c94774c9e19a55e75ad68a6bad1511aa1f1d614a@gmail.com>

* reformat by lints

Signed-off-by: onlyacat <c94774c9e19a55e75ad68a6bad1511aa1f1d614a@gmail.com>

* close #11552

Signed-off-by: onlyacat <c94774c9e19a55e75ad68a6bad1511aa1f1d614a@gmail.com>
BusyJay/tikv,BusyJay/tikv,BusyJay/tikv,BusyJay/tikv