Re: Tool for generating a rootfs for foreign arch (aarch64 on x86_64, for example)?

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On Thu, Jun 22, 2017 at 9:33 AM, Neal Gompa <ngompa13@xxxxxxxxx> wrote:
> On Thu, Jun 22, 2017 at 9:29 AM, John Reiser <jreiser@xxxxxxxxxxxx> wrote:
>> On 06/22/2017 0013Z, Neal Gompa wrote:
>>>
>>> Yes, we do have debootstrap, but it can only build Debian-based systems.
>>> :)
>>>
>>> I want to be able to build a Fedora based one.
>>
>>
>> Please be specific, and give a concrete example of what should change.
>>
>> debootstrap takes a list of .debs and builds a root filesystem that contains
>> them.
>> febootstrap takes a list of .rpms and builds a root filesystem that contains
>> them.
>> In both cases the result contains some distro-specific metadata as files:
>> the packaging data for maintenance of the system, which is implicit
>> (are not files that are contained in some input .debs or .rpms.)
>> In the case of Debian, the "extra" info is the apt metadata.
>> In the case of Fedora, the "extra" info is the dnf/yum metadata.
>>
>> Anything else?
>>
>
> debootstrap has the capability to utilize qemu-user-static to support
> constructing foreign arch rootfses. That means I can build an arm64,
> armhf, or ppc64el rootfs from an x86_64 host. As far as I know,
> febootstrap can't do this.
>
> The missing piece here is that I want to be able to construct a rootfs
> or an image for an architecture that *isn't* the same as my host
> machine.

For what purpose?

josh
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