Recreate empty /etc/mnttab

If df or mount command return nothing it’s probably because /etc/mnttab is empty

# df –kh

# cat /etc/mnttab

# ls -ld /etc/mnttab 

-r--r--r--   1 root     root           0 Feb 14  2008 /etc/mnttab

# mount -F mntfs mnttab /etc/mnttab

# df -kh

Filesystem             size   used  avail capacity  Mounted on

/                       62G    39G    23G    63%    /

/dev                    62G    39G    23G    63%    /dev