Fixed in commit 9331ba5d by make /etc/mtab a symlink to /proc/self/mounts.
- bug#19491: /etc/mtab give wrong entries for early-mounted... 宋文武
- bug#19491: /etc/mtab give wrong entries for early-mo... Ludovic Courtès
- bug#19491: Fixed 宋文武
Fixed in commit 9331ba5d by make /etc/mtab a symlink to /proc/self/mounts.