Re: multistrap support

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

On 13.02.19 14:14, kazuhiro3.hayashi@toshiba.co.jp wrote:
> Hi,
> 
> I would like to know if isar still has some plans to use multistrap again
> (or similar existing tools if exists) to generate target images.
> 
> Multistrap for isar-image-base has been removed by the following commit:
> https://github.com/ilbers/isar/commit/19a314559178f7afd93ce3dafe8c8647ca6c8884
> and replaced by setup_root_file_system() in isar-bootstrap-helper.bbclass,
> which seems to use (pre-built?) isar-bootstrap-$ROOTFS_DISTRO-$ROOTFS_ARCH
> as the base tree instead of running the debootstrap process.
> 
> I guess that the main purposes of quitting multistrap is that
> there is no big update for a few years (though the last update is 2.2.10 on Nov. 2018)
> Are there any other reasons?
> (Some bugs difficult to be fixed, mismatches with isar specification, etc.)

Indeed, the key reason (beside some technical issues) for no longer using 
multistrap in Isar was that the multistrap creator himself explained to us that 
it's dead and we should rather sooner than later move away from it.

We then decided to pick up the most commonly used bootstrapping mechanism for 
Debian today, simply to reduce the risk of running into problems no one else is 
seeing - and fixing.

> 
> The current isar-bootstrap based approach would work fine for isar system,
> but in that case, it might be difficult to share efforts for
> developing and maintaining the functionality with non isar users.
> I'm just interested in the future plan of isar.

This takes concrete ideas what you consider worth sharing and what interfaces 
this may imply. Debootstrap is not married to Isar but it would take some use 
case to make that shareable or replaceable with something else.

Jan

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