Usual Workflow instructions not working on Debian Bookworm arm64 env

[kgilmer]

In follwing the instructions here: https://github.com/drakkar-lig/debootstick/wiki/Usual-Workflow I got to the part of running debootstick but the error does not provide info as to how to resolve the problem. Would hope that the --help-os-support option would provide more concrete info on how to move forward, or explicitly state that the operating environment is incompatible and cannot work:

root@debian-bookworm-arm64-1:/tmp/dbs-test1# debootstick /tmp/bookworm_chroot /tmp/img
E: debootstick does not know how to handle your chroot environment.
E: Run 'debootstick --help-os-support' for more info.
root@debian-bookworm-arm64-1:/tmp/dbs-test1# debootstick --help-os-support
This version of debootstick was tested successfully with the following kinds of
chroot-environments:
* OS for Raspberry Pi:
    - Raspberry Pi OS (formerly "rasbian") bullseye
* OS for 32 or 64 bit PCs:
    - Debian 12 (bookworm) as of october 20, 2022
    - Debian 11 (bullseye)
    - Ubuntu 22.10 (kinetic)
    - Ubuntu 22.04 LTS (jammy)
root@debian-bookworm-arm64-1:/tmp/dbs-test1# debootstick --help
Usage: debootstick [options] <fs_tree_dir> <out_image_path>

[eduble]

Hello Ken, debootstick does not handle arm64 environments mainly because of the lack of a standard apt-installable bootloader. We could imagine supporting 64-bit OS on raspberry pi boards. For now it's only 32-bit because at the time we developed it, "raspbian" was 32-bit only. If you think --help-os-support could be more precise, a pull request is welcome. We could explicitely specify x86 PCs and 32-bit in the case of the Raspberry Pi.

[kgilmer]

Hi Etienne! Yes, to me the message when running debootstick left me wondering if there was something I did wrong. Perhaps it's just me, and if so no worries. Here is my suggestion for maybe a more direct way of conveying the intent. If you agree this is an improvement, I'd be happy to write a PR, but don't feel that you have to :)

E: debootstick does not know how to handle your chroot environment. -> 
E: Run 'debootstick --help-os-support' for more info.

->

E: This chroot environment is not supported by debootstick.  Aborting."
E: Run 'debootstick --help-os-support' for a list of supported chroot environments.

[eduble]

I see, yes of course this could be better. Ok so I let you write the PR, it is important that contributions are credited to the correct author. The message you quoted is in scripts/create-image/os-detect. The text of --help-os-support option itself is in scripts/create-image/cmdline, if you want to improve it too (wrt. the fact we support only the 32bit OS for raspberry pi boards). Please also add something in debian/changelog. This will be the first entry for next version 2.9.