[arch-general] unionfs

[Baho Utot]

On Tue, 2009-06-16 at 10:28 -0500, Aaron Griffin wrote:
> On Mon, Jun 15, 2009 at 6:43 PM, Baho Utot<baho-utot at columbus.rr.com> wrote:
> > On Mon, 2009-06-15 at 12:20 -0500, Aaron Griffin wrote:
> >> On Mon, Jun 15, 2009 at 3:37 AM, Baho Utot<baho-utot at columbus.rr.com> wrote:
> >> > On Mon, 2009-06-15 at 11:28 +1000, Allan McRae wrote:
> >> >> Baho Utot wrote:
> >> >> > On Mon, 2009-06-15 at 10:46 +1000, Allan McRae wrote:
> >> >> >
> >> >> >> Baho Utot wrote:
> >> >> >>
> >> >> >>> I have setup a new computer with a clean install with
> >> >> >>> kernel26-2.6.29.4-1 does this kernel support unionfs?
> >> >> >>> This is the second system I have had trouble with.
> >> >> >>>
> >> >> >>> Devtools always complains like this
> >> >> >>>
> >> >> >>> building union chroot
> >> >> >>> ERROR: No unionfs available. Abandon ship!
> >> >> >>> FAILURE: vsftpd-2.1.0-2-i686.pkg.tar.gz
> >> >> >>>
> >> >> >>> I am using devtools 0.6.4-1 the latest I think
> >> >> >>>
> >> >> >>> When I use devtools with kernel26 2.6.27.10-1 on an older system
> >> >> >>> devtools works
> >> >> >>>
> >> >> >>> Anyone got a clue what is wrong?
> >> >> >>>
> >> >> >>>
> >> >> >> The same as previously...   recent kernels do no support unionfs so you
> >> >> >> need a git version of makechrootpkg with fixes it to use unionfs.
> >> >> >>
> >> >> >> Allan
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >
> >> >> > Can you tell Aaron I found an error with his latest git version of
> >> >> > devtools the makechrootpkg
> >> >> >
> >> >> > devtools-360fcd2f0ecaba3c8bb0e56e7fc6014dacfb3ec7
> >> >> >
> >> >> > line 227 on the version I just fetched
> >> >> > near the bottom of the script (makechrootpkg)
> >> >> >
> >> >> > is
> >> >> >     pkgfile=${chrootdir}/union/pkgdest/${pkgname}-${pkgver}-${pkgrel}-*
> >> >> > ${PKGEXT}
> >> >> >
> >> >> > should be
> >> >> >
> >> >> >     pkgfile=${chrootdir}/rw/pkgdest/${pkgname}-${pkgver}-${pkgrel}-*
> >> >> > ${PKGEXT}
> >> >> >
> >> >> > It fails to copy the completed/built package from the chroot to the
> >> >> > directory where you have the PKGBUILD file
> >> >> >
> >> >>
> >> >> I have no problems, and if you think about it, the union dir is a union
> >> >> between the root and rw directories so this is the same thing...
> >> >>
> >> >> Allan
> >> >>
> >> >>
> >> >>
> >> >
> >> > Then why doesn't it work?
> >> >
> >> > The package is left in rw/pkgdest
> >> > after I change it the package is moved to the dir the PKGBUILD is in.
> >>
> >> The only reason it wouldn't work is that rw and union are _not_ the
> >> same at that point in time.
> >
> > Don't understand what you are saying there???
> >
> > Then my fix it is OK?
> >
> > I understand the rw overlays ../root what does the union do?
> 
> root is read-only
> rw is read-write
> union is used to combine the two (to mount anything, you need a destination dir)
> 
> So, root + rw = union

Pk but that adds to the mystery why the compiled packages is missing in
union and present in rw