Re: [PATCH v6 0/8] Migrate to mmdebstrap

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

On 24.10.23 08:23, Anton Mikanovich wrote:
> Switch Isar from debootstrap to mmdebstrap.
> 
> It makes isar-bootstrap target ~10..30% faster on both cross and native
> rootfs types. Some measurements on qemuarm64-bookworm (required debs are
> predownloaded and used during deb-dl-import):
> 
> - 20s vs 28s for "isar-bootstrap-host"
> - 1m32s vs 1m48s for "isar-bootstrap-target
> 
> Also mmdebstrap support using SOURCE_DATE_EPOCH for images reproducibly
> out of the box. But the main advantage is an ability to remove sudo for
> debootstrapping later on (this needs "uidmap" package installed).
> 
> This change breaks Debian Buster support as host distro.

No other regressions known? Or do we need an option to select the
bootstrap variant, at least for some transition period?

BTW, the series seems to be a bit misordered, given that it first
switched to mmdebstrap and only after that fixes related issues. Is that
unavoidable?

Jan

> 
> Changes since v5:
> - Improve keyring handling.
> - Fix mmdebstrap hooks.
> 
> Changes since v4:
> - Rebase on next.
> - Migrate from apt-key to gpg.
> - Fix Ubuntu and RPi targets.
> - Cleanup debootstrap mentions.
> - Fix commit messages.
> 
> Changes since v3:
> - Rebase on latest next.
> - Remove temporary patch 7 since kas:4.0 already includes mmdebstrap.
> 
> Changes since v2:
> - Rebase on next.
> - Fix commit messages.
> - Update host requirements.
> 
> Changes since v1:
> - Move mmdebstrap tmpdir to workdir.
> - Fix kas building.
> - Improve mounts cleanup.
> 
> Anton Mikanovich (7):
>   meta: Preinstall apt for Ubuntu and RPi targets
>   isar-bootstrap: Move preparations to hooks
>   isar-bootstrap: Use tar output instead of directory
>   user_manual.md: Replace debootstrap with mmdebstrap
>   user_manual.md: Update minimal host requirements
>   isar-bootstrap: Remove unused code
>   meta: Fix missing dpkg available
> 
> Uladzimir Bely (1):
>   meta: Switch to mmdebstrap
> 
>  doc/user_manual.md                            |  41 +--
>  meta-isar/conf/distro/ubuntu-common.inc       |   4 -
>  meta/classes/rootfs.bbclass                   |  11 +-
>  meta/conf/bitbake.conf                        |   2 +-
>  .../isar-bootstrap/isar-bootstrap.inc         | 302 +++++++++---------
>  5 files changed, 171 insertions(+), 189 deletions(-)
> 

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