On Fri, 08 May 2009, David Weinehall wrote:
> On Thu, May 07, 2009 at 07:27:08PM -0500, Manoj Srivastava wrote:
> > No. But we do leave /usr read-only the rest of the time, which
> > is often 99.999% of the time. A separate /usr is required for this.
>
> Uhm, no?
>
> mount --bind /usr /usr
>
> Should do the trick (the same mount -o remount,rw / remount,ro then
> applies). all thanks to the magic of subtrees :)
Yeah. Right.
wea...@intrepid:~/tmp$ mkdir foo
wea...@intrepid:~/tmp$ touch foo/bar
wea...@intrepid:~/tmp$ sudo mount -o bind,ro foo foo
wea...@intrepid:~/tmp$ touch foo/baz
wea...@intrepid:~/tmp$
bind mounts don't do ro.
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