Chuck Lever wrote: > What if /etc/mtab is a symlink to a valid writable file that is not / > proc/mounts? The test you introduce below will prevent that case from > working properly. Note that util-linux mount does the same thing in this case, so this must be an uncommon case. umount.nfs also avoids writing to /etc/mtab if it is a symlink.. > Is there a security issue with creating a file in / when /proc isn't > mounted, or is this just an inconvenience? The worse problem is that mount.nfs fails with a nonzero exit code if /proc/ is mounted, since the fchmod of /proc/mounts fails. -- see shy jo