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Re: [MirageOS-devel] Xen-arm-builder changes

On 11 Aug 2014, at 11:48, Thomas Leonard <talex5@xxxxxxxxx> wrote:

> On 11 August 2014 11:41, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
>> On 11 Aug 2014, at 10:36, Magnus Skjegstad <magnus@xxxxx> wrote:
>>> I have updated xen-arm-builder to support installing driver firmware on
>>> the disk image by adding a FIRMWARE ?= in Makefile and cloning
>>> linux-firmware. I have also enabled support for two wireless adapters
>>> and Cubieboard LEDs in the kernel. I have also set noatime,nodiratime in
>>> fstab to speed up disk access.
>>> The firmware-change is also documented in the README.md.
>>> I don't know if you want to merge any of these changes back to the main
>>> repo?
>>> https://github.com/MagnusS/xen-arm-builder/commits/master
>> CCing the devel list -- all of these look useful to me.  Should we also
>> set the 'discard' option to enable TRIM on SSDs (or would this cause
>> failures if the media doesn't support trimming?)
>> Do send a pull request on the existing changes and I'll merge/rebuild.
>> Incidentally, I added a Dockerfile to xen-arm-builder in order to make
>> it quicker to fetch a working tree.  The limits of containers start
>> showing up quite fast unfortunately, since the only way to mount a
>> loopback device is to use Docker in 'privileged mode', which none of the
>> public build services do.  Still, if anyone wants to play with it, you
>> just:
>> sudo docker.io pull avsm/xen-arm-builder
>> sudo docker.io run -t avsm/xen-arm-builder bash
>> Can't do much with it after that unless you're in a privileged local
>> container (if anyone gets that to work, drop a note on this thread).
> I've always been building it in a privileged docker container, since
> I'm not running Ubuntu.
> The command I use to enter my container is:
> docker run -e "http_proxy="; --privileged -it
> -v `pwd`:/xen-arm-builder --entrypoint /bin/bash -w /xen-arm-builder
> xen-sdcard-builder
> The proxy is to save redownloading all the debs each time.
> To get ARM emulation support, I also have to run this inside the
> container (affects the host too, I think):
> /etc/init.d/binfmt-support start

I've not had a chance to try this out yet (since I have an Ubuntu box),
but I created an issue since it seems like useful information for anyone
else trying: https://github.com/mirage/xen-arm-builder/issues/40

Can integrate it into README if it's all stable Docker command line


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