MESSAGE
| DATE | 2008-05-02 |
| FROM | Ruben Safir
|
| SUBJECT | Re: [NYLXS - HANGOUT] ASUS EEE PC Disk Space
|
On Fri, May 02, 2008 at 09:30:09AM -0400, Mark Simko wrote:
> Ruben,
>
> There was a good presentation on UnionFS and LVM at LILUG about 2 years
> ago.
>
> UnionFS will combine 2 file systems and make them act as one. Let me
> elaborate.
>
> When you have a standard ext3 file system, if you were to mount another
> file system over a directory of that file system, you would no longer
> have access to the original directory. For example, if you
> mount /dev/hda2 to /home, you would no longer see the original home
> directory, nor be able to access it until you unmounted /dev/hda2.
>
> UnionFS makes it possible to blend those 2 directories. It is a way of
> extending your original file structure.
>
> I haven't had much chance to use UnionFS, but it has great potential,
> both to solve problems, and apparently, to cause consternation ;)
It seems to trash standard unix tools. du -x / doesn't work
du -s /usr should about 1.5 gigs while
df shows 410 megs on the same device, which is,
of course, a physical impossibility ;)
Ruben
>
> cheers,
> Mark
>
>
> On Thu, 2008-05-01 at 23:31 -0400, Ruben Safir wrote:
> >
> > I'm looking at y EEE hard drive and it's very strange.
> >
> > It's a 2 gig drive. fdisk confirms it is a 2 gig drive and there
> > is a /dev/sda1 and /dev/sda2
> >
> > df -h says that root partition has about 410 Megs and its nearly full
> >
> > mount says I have 3 patitions all mounted to / and that one is called
> > the unionfs
> >
> > What is unionfs
> >
> > When I mount /dev/sda2 by hand it is a dulicate of /dev/sda1
> >
> > wat the hell is going on here and where is my hard drive space?
> >
> > Ruben
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