Apparently, though unproven, at 16:13 on Wednesday 15 December 2010, 
meino.cra...@gmx.de did opine thusly:

> Hi,
> 
> my /tmp has the permissions set to 1777 . And it is the mountpoint for
> an extra partitions holding the stuff of '/tmp/'
> 
> 
> When booting into single-user mode and unmounting /tmp and doing
> a
> 
>     ls -ld /tmp
> 
> it shows
> 
>     drwxrwxrwt 45 root root 61440 2010-12-15 15:07 /tmp
> 
> BUT
> 
> as soon as I mount the device on /tmp and doing the same ls -ld
> again it shows
> 
> 
>     drwsrwsrwt 45 root root 61440 2010-12-15 15:07 /tm
> 
> 
> That looks not ok to me.
> 
> /etc/fstab has an entry which "options" field is set to "default"
> 
> And this happens to any mountpoint I mount that device on regardless
> of its perm settings before the mount
> 
> 
> What is the reason for this?

What filesystem type?

You probably have some defaults set that make it suid/sgid, but these things 
are filesystem-dependant and for that we need to know the type


-- 
alan dot mckinnon at gmail dot com

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