MESSAGE
| DATE | 2008-05-02 |
| FROM | Mark Simko
|
| SUBJECT | Re: [NYLXS - HANGOUT] ASUS EEE PC Disk Space
|
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 ;)
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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