On Wed, Nov 18, 2009 at 03:33:12PM +0000, Daniel Drake wrote:
> This reverts commit a692a8745941a192528c5e2a05de97155ba586f9.
Revered and man page updated. switch_root does not support subroots
from now.
On Wed, Nov 18, 2009 at 03:13:58PM -0500, Peter Jones wrote:
> On 11/18/2009 01:47 PM, Karel Zak wrote:
> > On Wed, Nov 18, 2009 at 03:33:12PM +0000, Daniel Drake wrote:
> >> +.SH NOTES
> >> +switch_root will fail to function if
> >> +.B newroot
> >> +is not the root of a mount. If you want to switch root into a directory
> >> that
> >> +does not meet this requirement then you can first use a bind-mounting
> >> trick to
> >> +turn any directory into a mount point:
> >> +.sp
> >> +.nf
> >> +.RS
> >> +mount --bind $DIR $DIR
> >
> > Cannot we add this functionality directly to the switch_root command?
> > I mean call:
> >
> > mount --bind /newroot/subroot /newroot/subroot
> > mount --move /newroot/subroot /
> >
> > Now we have:
> >
> > mount --move newroot /
> > chroot /newroot/subroot
>
> That certainly seems preferable to reverting the patch, especially if, as
I agree. People (IMHO OLPC project only) who need subroots can easily
add "mount --bind" to their initrd.
Karel
--
Karel Zak <[email protected]>
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