Re: [PATCH] buildchroot: Align UID and GID of builder user with caller

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

On 12.11.18 10:42, Henning Schild wrote:
> Am Mon, 12 Nov 2018 10:19:54 +0100
> schrieb Jan Kiszka <jan.kiszka@siemens.com>:
> 
>> On 12.11.18 10:16, [ext] Henning Schild wrote:
>>> I am afraid that this is not correct. The ids you are taking from
>>> the "host" might be taken inside the chroot. As a result creating
>>> the user/group would fail. Chances might be low ... This also
>>> assumes that
>>
>> Really? I thought that these commands are run very early during
>> bootstrap where there are no other users - if not, that would be a
>> bug.
> 
> I think the only uid/gid you can really be sure about is 0. 1 could
> already be a regular user on the host, and 1 is "daemon" on a current
> debian ... probably there right after debootstrap.

Let me check if we can move the ID assignment earlier, to reduce that risk.

> 
> 1000 being the first "user" is more a convention than something you can
> rely on for any host. (/etc/login.defs UID_MIN/MAX etc.)

We are talking about transferring the ID's from the host Debian to the 
buildchroot Debian - is there really a realistic risk of friction?

If we can't solve that sync problem, we need to revert to running as root, I'm 
afraid. The current model is broken.

Jan

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