Hey everybody,
thanks for your suggestions!
I'll try on monday (when I have access to the SOC).
To be more presiese of my setup:
Im talking about a NAS that my or may not have a HD installd.
The situation when I have to umount the HD (aufs) is when
the user decides to reformat the hd or even change the partition layout.
Mount move sounds promissing and I'll report if and how it works for me.
Im now also thinking about exchanging the squash image with
a ro jffs(2?) partition to save some space/ram.
Have a nice weekend.
--
flip
>
> Michael Towers:
> > Could it be that there is a difference in regard to this in pivot_root
> > and switch_root? I haven't used root aufs for a while so I'm not sure
> > exactly what code I used but I don't remember using mount --move and I
> > don't remember any problems.
>
> In the case of pivot_root, you can still see the contents of old root
> which is the second parameter of pivot_root.
> In switch_root, which is basically equivalent to
> mount(".", "/", NULL, MS_MOVE, NULL)
> chroot(".")
> you can't see the contents of old root dir unless you move or copy them
> before switch_root. You can access the aufs branch filesystems if you
> mount --move them into under new root.
> If you don't need accessing branches manually after switch_root, you
> don't have move them. Aufs can access them if you don't move.
>
>
> Junjiro Okajima
>
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