OLPC build creation failed

Martin Abente martin.abente.lahaye at gmail.com
Thu Sep 13 21:53:10 EDT 2012

Hi Martin:

On Thu, Sep 13, 2012 at 9:30 PM, Martin Langhoff <martin at laptop.org> wrote:

> On Thu, Sep 13, 2012 at 8:51 PM, John Gilmore <gnu at toad.com> wrote:
> > Instead, you should fix OOB so it works to cross-compile.
> Unfortunately, OOB is just a nice wrapper around anaconda and rpm. You
> cannot cross-build because
>  - The anaconda toolchain does not have a good separation of
> environment arch vs target arch, because you run the installer on the
> target machine. This may be fixable with some effort.
>  - rpm does not install cross arch because scripts (%pre/%post, etc)
> often run binaries within the target fs. This is not fixable, unless
> you run the rpm stage in an emulator. If you are going to invite an
> emulator to the party, just do it around the whole process.
>  - You don't invite an ARM emulator to the party because you want to
> complete the build this year. ARM HW is slowish but bearable (build
> time is ~1hr).
Have anyone actually tried to emulate?

> In practical terms, anyone building an OS image for an XO deployment
> has access to an ARM-based XO. That drops the priority of
> cross-building consistently.
> TBH, I have never seen any OS image builder / composer in the Linux
> world that works cross platform.
> m
> --
>  martin at laptop.org -- Software Architect - OLPC
>  - ask interesting questions
>  - don't get distracted with shiny stuff  - working code first
>  - http://wiki.laptop.org/go/User:Martinlanghoff
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