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Re: dynamic mounts and chroot jail woes (long)...



This one time, at band camp, Stephen Gran said:
> This one time, at band camp, Lennart Sorensen said:
> > On Mon, Oct 17, 2005 at 07:16:37PM +0100, Stephen Gran wrote:
> > > I think you are going about it wrong, or looking at it backwards, or
> > > something.  It may be helpful to note that filesystems are mounted
> > > _over_ an existing mount point, not under.  So, if you have two
> > > directories:
> > > /media/pendrive
> > > /ia32/media/pendrive
> > > 
> > > and you bind mount /media/pendrive onto /ia32/media/pendrive, you get
> > > exactly what is in /media/pendrive *right now*.  When you later mount
> > > the actual pendrive _over top_ of /media/pendrive, it does nothing to
> > > what's underneath of it, and so the bind mount is unaffected.
> > > 
> > > So, all that being said, your solution is actually not a bad one, and
> > > seems to work.  If you want an easier to maintain setup, the only thing
> > > I can think off the top of my head would be 
> > > a) hard linking the directory one level up (e.g., /media), this will of
> > > course only work if they are on the same file system.
> > 
> > You don't hardlink directories.
> 
> steve@mercury:~$ man ln | grep -A 1 \\-d
>   -d, -F, --directory
>          hard link directories (super-user only)

That being said, I just tried it, and it doesn;t work, so perhaps you're
right :(

Sorry - I was just going by that line in the man page.
-- 
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|   ,''`.                                            Stephen Gran |
|  : :' :                                        sgran@debian.org |
|  `. `'                        Debian user, admin, and developer |
|    `-                                     http://www.debian.org |
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