[yocto] rootfs image size

[Tian, Kevin]

> From: Darren Hart [mailto:dvhart at linux.intel.com]
> Sent: Friday, January 28, 2011 6:37 AM
> 
> On 01/26/2011 03:58 PM, Tian, Kevin wrote:
> >> From: Chris Tapp
> >> Sent: Wednesday, January 26, 2011 9:09 PM
> >>
> >> I know this is probably a basic question, but I'm not having much luck !
> >>
> >> I've built poky-image-minimal for atom-pc using the 0.9 Poky release.
> >>
> >> This gives me an ext3 rootfs of over 80MB, which doesn't sound minimal
> >> to me ;-)
> >
> > This is a known issue in 0.9. the switch from ipk to rpm leaves some
> temporary files
> > in the final ext3 rootfs, which results the large size.
> >
> >>
> >> Can I reduce the size of the image, or is it expected to be this size?
> >>
> >> I've tried changing
> >>
> >> IMAGE_ROOTFS_SIZE_ext3 = "500000"
> >
> > This configuration option only works when it exceeds the size of generated
> rootfs,
> > or else it will be changed implicitly to the actual size plus some extra buffer
> >
> >>
> >>    in atom-pc.conf to another value, but this didn't make any
> >> difference to the image that gets created (by re-running bitbake poky-
> >> image-minimal after making the above change).
> >>
> >> I've also tried using
> >>
> >> ROOT_FLASH_SIZE = "64"
> >>
> >> also without any luck.
> >>
> >> Any help would be much appreciated !
> >>
> >
> > I'd suggest you to use the master to see whether it works for you.
> >
> > The alternative is to apply below commit to your 0.9 code:
> >
> > commit 5e384038cbd5035377d61a1b77ad23ab69e0cac0
> > Author: Richard Purdie<richard.purdie at linuxfoundation.org>
> > Date:   Wed Jan 5 18:56:47 2011 +0000
> >
> >      rootfs_rpm.bbclass: Remove temporary work files in install directory,
> saving work files in install directory, saving the manifests as logfiles into ${T}
> >
> >      Signed-off-by: Richard Purdie<richard.purdie at linuxfoundation.org>
> >
> > diff --git a/meta/classes/rootfs_rpm.bbclass
> b/meta/classes/rootfs_rpm.bbclass
> > index 33abe96..2f7d691 100644
> > --- a/meta/classes/rootfs_rpm.bbclass
> > +++ b/meta/classes/rootfs_rpm.bbclass
> > @@ -202,8 +202,11 @@ EOF
> >          # remove lock files
> >          rm -f ${IMAGE_ROOTFS}${rpmlibdir}/__db.*
> >
> > -       # remove resolver files and manifests
> > -       rm -f ${IMAGE_ROOTFS}/install/install.manifest
> > +       # Move manifests into the directory with the logs
> > +       mv ${IMAGE_ROOTFS}/install/*.manifest ${T}/
> > +
> > +       # Remove all remaining resolver files
> > +       rm -f ${IMAGE_ROOTFS}/install
> 
> 
> This needs to be "rm -rf", there is another patch in master that takes
> care of this: 21fafc889e81411735de7d04ffe504e5cff4830d
> 

Thanks for the catch-up. I do remember that you dig it out but not realize related here. :-)

Thanks
Kevin