Re: [uml-user] Problem with hostfs as rootfs

[Blaisorblade <bla...@ya...>]

On Wednesday 27 October 2004 09:29, Ferm=EDn Gal=E1n M=E1rquez wrote:

> > This happens with 2.6 hosts. Currently the fix is in later 2.4 releases,
> > but they have a bigger problem - hostfs is rewritten and does not work
> > well.

> That's make sense to me. I was trying with a UML kernel 2.6.8.1 and things
> were even worse (the UML did not even boot)!

> >> You might try a guest 2.6.9 for that. Otherwise, on
> >> http://www.user-mode-linux.org/~blaisorblade/ will appear soon a 2.4.27
> >> patch fixing, between the various things, even this problem.

> What are you meaning with 'guest'? The UML kernel, isn't it?

> By now, I only have seen UML patches up to 2.6.8.1
> (http://user-mode-linux.sourceforge.net/dl-2.5-patches-sf.html). Can these
> ones be applied to the 2.6.9 kernel without problems or should I wait unt=
il
> a 2.6.9 UML patch will be released?

Luckily, the 2.6.9 patch is included in vanilla 2.6.9. Also its hostfs shou=
ld=20
be the best working one. The bug with "ls -l /etc" should be solved, while=
=20
the hostfs rewrite is omitted, and will be included only when it will be=20
really stable.

That said, hostfs still has some problems, which cannot be solved by it. If=
=20
you are root, even if a file has mode 000, you can read it; it does not=20
happen with normal users. This does not happen with hostfs, if you are=20
running UML as user.

Also, ownership is not preserved. The current recommended setup is using a =
ubd=20
file.
=2D-=20
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729