Binary Compatibility Guide

/etc/fstab /etc/mtab

The name and format of these files have changed. The Binary Compatibility Package performs the mappings needed to give applications read-only access to these files. Applications requiring write access to these files are not binary compatible. Applications are not expected to write to these files.

Note -

Symbolic links to these files are no longer supported. This is, if an application creates a link to /etc/fstab or /etc/mtab, and attempts to open the symbolic link, the open call fails.