nanobsd: Use gpart and create code image before full disk image
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Authored by imp on Jul 7 2021, 9:59 PM.

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rGe1b5efda31c3: nanobsd: Use gpart and create code image before full disk image
rG50b2e5d608d2: nanobsd: Use gpart and create code image before full disk image
rG587c054bea0f: nanobsd: Use gpart and create code image before full disk image

Summary

The attached patch brings two main changes to the nanobsd script:
1- gpart is used instead of fdisk;
2- the code image is created first, and then used to ``assemble'' the

full disk image.

The patch was first proposed on the freebsd-embedded list:
http://lists.freebsd.org/pipermail/freebsd-embedded/2012-June/001580.html
and is currently under discussion:
http://lists.freebsd.org/pipermail/freebsd-embedded/2014-January/002216.html

Another effect is that the -f option ("suppress code slice extraction")
now imples the -i option ("suppress disk image build").

Patch hand applied to new since stable/11 legacy.sh by imp@

Test Plan

Note: This needs to be tested. I wanted to get the forward-ported patch into someplace public.

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rG FreeBSD src repository

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Event Timeline

imp requested review of this revision.Jul 7 2021, 9:59 PM

imp created this revision.

Harbormaster completed remote builds in B40381: Diff 91955.Jul 7 2021, 9:59 PM

imp edited the test plan for this revision. (Show Details)Jul 7 2021, 10:00 PM

imp added a reviewer: phk.

jlduran added a subscriber: jlduran.Jul 7 2021, 10:55 PM

jlduran added inline comments.Jul 8 2021, 2:07 AM

tools/tools/nanobsd/defaults.sh
165	Don't know if it makes sense to derive them from `NANO_ROOT`/`NANO_ALTROOT` and `NANO_SLICE_ROOT`/`NANO_SLICE_ALTROOT` to prevent foot-shootings: NANO_PARTITION_ROOT="${NANO_ROOT##$NANO_SLICE_ROOT}" NANO_PARTITION_ALTROOT="${NANO_ALTROOT##$NANO_SLICE_ALTROOT}"
tools/tools/nanobsd/legacy.sh
105	I have tested this change building an "embedded" aarch64 NanoBSD image. As the first email warns, this breaks when building the code slice: `dd: no value specified for seek`, I had to use `NANO_LOG` instead of `NANO_OBJ` here.

imp marked an inline comment as done.Jul 8 2021, 2:57 AM

imp added inline comments.

tools/tools/nanobsd/defaults.sh
165	I don't think this makes sense because these variables are set later and also set in config files.
tools/tools/nanobsd/legacy.sh
105	Yes. That's needed.
184	And this should be NANO_LOG too.

ardovm_yahoo.it added a subscriber: ardovm_yahoo.it.Jul 8 2021, 12:06 PM

Hello all,

I would be glad to help if I could, but I only have access to stable/11 systems at the moment and I cannot apply @imp 's patch because there is no file legacy.sh

I am also totally new to Phabricator, so please be patient ;-)

Feel free to contact me if you think I can be of any help.

In D31102#699860, @ardovm_yahoo.it wrote:

I would be glad to help if I could, but I only have access to stable/11 systems at the moment and I cannot apply @imp 's patch because there is no file legacy.sh

Yes. I split that out after stable/11 branch. The original bug has older patches.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186030

I didn't really change it much, other than what was noted here.

This revision was not accepted when it landed; it landed in state Needs Review.Jul 15 2021, 10:16 PM

Closed by commit rG587c054bea0f: nanobsd: Use gpart and create code image before full disk image (authored by ardovm_yahoo.it, committed by imp). · Explain Why

This revision was automatically updated to reflect the committed changes.

imp added a commit: rG587c054bea0f: nanobsd: Use gpart and create code image before full disk image.

imp added a commit: rG50b2e5d608d2: nanobsd: Use gpart and create code image before full disk image.Jul 21 2021, 4:14 PM

imp added a commit: rGe1b5efda31c3: nanobsd: Use gpart and create code image before full disk image.Jul 21 2021, 4:19 PM