From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Description of problem:
When you boot into a sulogin mode such as when doing a "linux emergency"
and run mount, the mounts are displayed with the read-write tag even
though they are mounted read-only
Steps to Reproduce:
1.LILO: linux emergency
Actual Results: mounts show up as rw but are actually ro
Expected Results: mount should reports mounts as ro
This is because mount parses /etc/mtab [saved state] rather than /proc/mounts
To "fix" this,
ln -s /proc/mounts /etc/mtab
Please see the mount man page for details on whether or not it's a good idea
(there are both good and bad points about doing this).