Re: The reason to call it 3.0 is the desktop (was Re: [OT] 2.6 not 3.0 - (NUMA)) (fwd)

[Rob Landley]

On Sunday 13 October 2002 09:09 pm, Alexander Viro wrote:
> > Logically, the second /var mount should be "mount --move /initrd/var
> > /var", followed by "umount /initrd" to free up the initrd memory.  Right
> > now it's doing "mount -n --bind /initrd/var /var", because /etc is a
> > symlink into /var (has to remain editable, you see), and this way the
> > information about which partition var actually is can be kept in one
> > place.  (This is an implementation detail: I could have used volume
> > labels instead.)
> >
> > The point is, right now I can't free the initial ramdisk because it has
> > an active mount point under it..
>
> umount -l
> mount --move

Cool.  Thanks.

Rob

(Serves me right for still having Red Hat 7.2 on my laptop.  Old man pages.  
Now I've got to find a new project to force myelf to learn VFS internals.  Oh 
well... :)

(Nit-pick:  the man page description of umount -l doesn't look like it'd help 
with the removable media problem, I.E. "umount --gimme_my_cd_back_NOW", but 
the code may disagree, and the discussion's already turned up a 2.4 patch 
from Tirgran via Hugh Dickens, so I'll shut up now. :)