mbox series

[v4,0/6] Migrate to mmdebstrap

Message ID 20230927043320.6264-1-ubely@ilbers.de
Headers show
Series Migrate to mmdebstrap | expand

Message

Uladzimir Bely Sept. 27, 2023, 4:33 a.m. UTC 
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.

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 (5):
  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

Anton Mikanovich (5):
  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

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 +-
 .../isar-bootstrap/isar-bootstrap.inc         | 274 ++++++++----------
 4 files changed, 146 insertions(+), 184 deletions(-)