[lxc-devel] Announcing public builds of LXC for Android

[Mario]

Do you know if I can install Ubuntu Touch on the Samsung and Google
ARM chromebook ? My goal is to "virtualize" Android on this
netbook,since actually I have installed ubuntu on it. Thanks.

2013/12/11, Stéphane Graber <stgraber at ubuntu.com>:
> LXC on Android requires the same kernel features as on any other Linux
> system.
>
> The best way of finding what you are missing is to grab your current
> kernel config either from the git branch that was used to build it or
> from /proc/config.gz if available, then feed that to lxc-checkconfig
> which will list any missing feature.
>
> If you are missing some critical bits (the common ones I found being
> missing namespace and cgroup support), you'll need to grab the source of
> your current kernel, enable all the missing options, re-run
> lxc-checkconfig against the resulting config to check it's good, then
> build the kernel, build the modules (if needed, not all Android kernels
> come with modules support) and possibly rebuild some out of tree binary
> wrappers (radio/wifi/bluetooth/...).
>
> Once that's all done, you'll need to write the resulting image back to
> the device which tends to be device specific. For fastboot devices, that
> usually involves extracing the boot partition, unpacking it with
> abootimg, updating the kernel and pushing the resulting image back to
> the device.
>
>
> I'm well aware that this doesn't look particularly user friendly, though
> as I said on lxc-users earlier today, short of having manufacturer
> support for the features we need in the kernel, that's as easy as it's
> going to get...
>
> In my experience, devices that are supported by cyanogenmod tend to be
> easier to work with since they come with a standard set of git branches
> and usually reasonably good build and deployment instructions.
>
> Note again that as this requires the device to be rooted and the
> bootloader to be unlocked, this may void your warranty.
>
> On Wed, Dec 11, 2013 at 07:27:04PM +0100, Mario wrote:
>> Do you have a tutorial that explains the procedure ? What are the
>> kernel features needed ?
>>
>> 2013/12/11, Stéphane Graber <stgraber at ubuntu.com>:
>> > On Wed, Dec 11, 2013 at 07:14:15AM +0100, Mario wrote:
>> >> Only the old versions of Android are supported by LXC right now ?
>> >
>> > I'm not sure what you mean by old, my test device runs Android 4.2 and
>> > it certainly works on that.
>> >
>> > I haven't tried it on any 4.4 device yet but I'd expect the binaries to
>> > work fine there too (assuming you have a kernel with the required
>> > features).
>> >
>> >> 2013/12/10, Stéphane Graber <stgraber at ubuntu.com>:
>> >> > Hello,
>> >> >
>> >> > Some of you may have noticed the rather large amount of fixes I've
>> >> > been
>> >> > working on for a while to get LXC to behave mostly fine on Android.
>> >> >
>> >> > With the recent rework of LXC's automated build system, I'm now
>> >> > happy
>> >> > to
>> >> > announce that every hour (provided there's a change in git master),
>> >> > a
>> >> > new android tarball will be produced with binaries built against the
>> >> > current version of the Android NDK.
>> >> >
>> >> > Resulting builds may be found at:
>> >> > http://qa.linuxcontainers.org/master/current/android-armel/
>> >> >
>> >> > If you want to run those, you'll need an ARM based Android device
>> >> > with
>> >> > a
>> >> > compatible kernel (you'll likely need to hand-build one), then
>> >> > unpack
>> >> > the tarball in /, unpack a container in /data/lxc/containers/ and
>> >> > finally start it with "./run-lxc lxc-start -n <container>".
>> >> >
>> >> > I expect all the binaries command to work fine. The templates and
>> >> > all
>> >> > other scripts currently don't due to the rather limited shell being
>> >> > available on Android. I may try to resolve that in the near future.
>> >> >
>> >> > Have fun!
>> >> >
>> >> > --
>> >> > Stéphane Graber
>> >> > Ubuntu developer
>> >> > http://www.ubuntu.com
>> >> >
>> >>
>> >>
>> >> --
>> >> Mario.
>> >> _______________________________________________
>> >> lxc-devel mailing list
>> >> lxc-devel at lists.linuxcontainers.org
>> >> http://lists.linuxcontainers.org/listinfo/lxc-devel
>> >
>> > --
>> > Stéphane Graber
>> > Ubuntu developer
>> > http://www.ubuntu.com
>> >
>>
>>
>> --
>> Mario.
>> _______________________________________________
>> lxc-devel mailing list
>> lxc-devel at lists.linuxcontainers.org
>> http://lists.linuxcontainers.org/listinfo/lxc-devel
>
> --
> Stéphane Graber
> Ubuntu developer
> http://www.ubuntu.com
>


-- 
Mario.