Re: PRoot: Drop sudo around buildchroot

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2017-11-02 18:19, Henning Schild wrote:
> Hi,
> 
> i just gave that a try and failed to generate an image. 
> 
> When using docker you will need "--cap-add=SYS_PTRACE".
> Now i waited for a long time, proot seems to slow things down a lot.

If it is relying on ptrace, that would explain this...

> 
> And then i ended up with a long list of packages where "Errors were
> encountered while processing:". Might be connected to docker...
> 
> Did anyone else give that a try?

Not yet. I suppose we also need to native run to find out if the
slow-down and the failure are only docker-related.

Jan

> 
> Henning
> 
> Am Wed, 25 Oct 2017 12:48:37 +0300
> schrieb Alexander Smirnov <asmirnov@ilbers.de>:
> 
>> On 10/24/2017 11:22 PM, Jan Kiszka wrote:
>>> On 2017-10-24 21:34, Alexander Smirnov wrote:  
>>>> Hello all,
>>>>
>>>> I've successfully dropped 'sudo' around buildchroot operations:
>>>>
>>>>   - Create buildchroot
>>>>   - Build dpkg-base package (hello)
>>>>   - Build dpkg-raw package (example-raw)
>>>>
>>>> The patch is quite small, proot works out-of-the box. I've tested
>>>> the following configurations:
>>>>
>>>>   - multiconfig:qemuarm-wheezy:isar-image-base
>>>>   - multiconfig:qemuarm-jessie:isar-image-base
>>>>   - multiconfig:qemuarm-stretch:isar-image-base
>>>>   - multiconfig:qemui386-jessie:isar-image-base
>>>>   - multiconfig:qemui386-stretch:isar-image-base
>>>>   - multiconfig:qemuamd64-jessie:isar-image-base
>>>>   - multiconfig:qemuamd64-stretch:isar-image-base
>>>>
>>>> So proot is really good tool :-)
>>>>
>>>> If you'd like to reproduce the test, please try my branch:
>>>> asmirnov/devel
>>>>
>>>> NOTE: do not forget to install proot: apt-get install proot
>>>>
>>>> Build command:
>>>> $ bitbake multiconfig:qemuarm-wheezy:isar-image-base
>>>> multiconfig:qemuarm-jessie:isar-image-base
>>>> multiconfig:qemuarm-stretch:isar-image-base
>>>> multiconfig:qemui386-jessie:isar-image-base
>>>> multiconfig:qemui386-stretch:isar-image-base
>>>> multiconfig:qemuamd64-jessie:isar-image-base
>>>> multiconfig:qemuamd64-stretch:isar-image-base
>>>>  
>>>
>>> Great news! Hope this passes all tests and then makes it into
>>> master soon! 
>>
>> I've tested QEMU machines for images listed above, no difference 
>> observed in comparison with original 'sudo' approach. But anyway, it 
>> would be nice if somebody else will test this, especially in customer 
>> project environment.
>>
>