Re: [PATCH] dpkg: Configure sbuild for schroot

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 15.04.26 16:04, 'Jan Kiszka' via isar-users wrote:
> On 15.04.26 15:56, Moessbauer, Felix (FT RPD CED OES-DE) wrote:
>> On Wed, 2026-04-15 at 14:50 +0200, 'Jan Kiszka' via isar-users wrote:
>>> From: Jan Kiszka <jan.kiszka@siemens.com>
>>>
>>> This is what at least the trixie version of sbuild strongly recommends
>>> and also what the forky version will require.
>>>
>>> $chroot_mode is known to sbuild buster at least. It remains unclear when
>>> $schroot was introduced, but it was very likely ignored before that. So
>>> this changes is backward-compatible with older builders.
>>>
>>> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
>>> ---
>>>
>>> Tested with a local experimental kas-isar forky container.
>>>
>>>  meta/classes-recipe/dpkg.bbclass | 2 ++
>>>  1 file changed, 2 insertions(+)
>>>
>>> diff --git a/meta/classes-recipe/dpkg.bbclass b/meta/classes-recipe/dpkg.bbclass
>>> index c1c38184..24eb0f7e 100644
>>> --- a/meta/classes-recipe/dpkg.bbclass
>>> +++ b/meta/classes-recipe/dpkg.bbclass
>>> @@ -106,6 +106,8 @@ dpkg_runbuild() {
>>>  
>>>      echo '$apt_keep_downloaded_packages = 1;' >> ${SBUILD_CONFIG}
>>>      echo '$stalled_pkg_timeout = ${DPKG_BUILD_TIMEOUT};' >> ${SBUILD_CONFIG}
>>> +    echo '$chroot_mode = "schroot";' >> ${SBUILD_CONFIG}
>>> +    echo '$schroot = "schroot";' >> ${SBUILD_CONFIG}
>>
>> This should not be required (since [1]), as we select the chroot mode
>> when calling sbuild [2]. That's also compatible with the rootless
>> series where we just select unshare.
>>
>> [1]https://github.com/ilbers/isar/commit/fec8600fea2ca741373c9e3e4f3d41f147dfbb09
>>
> 
> Indeed, I tested with an older Isar baseline and didn't notice this
> switch while forward-porting. Let me double-check with 1.0-rc1 again if
> the issue under forky is gone.
> 

And it does work, of course - so please ignore this.

Jan

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Siemens AG, Foundational Technologies
Linux Expert Center

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