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Use makefs(8) in release VM-image generation instead of md(4) and newfs.

Description

Use makefs(8) in release VM-image generation instead of md(4) and newfs.

Using makefs instead reduces the privileges needed to build VM images,
simplifies the script (no need to copy files to a fresh image at the end),
and improves portability by allowing generation of cross-endian images.
As a result of the last, this patch also adds support for generation of
powerpc64 and powerpc64le VM images.

No other changes to the output. Tested and working for both amd64 and
powerpc64 targets.

Reviewed by: gjb
Differential Revision: https://reviews.freebsd.org/D28912

Details

Provenance
nwhitehornAuthored on Feb 25 2021, 2:16 AM
Reviewer
gjb
Differential Revision
D28912: Use makefs(8) in release VM-image generation instead of mdconfig/newfs/etc.
Parents
R10:ef567155d35f: Fix powerpc build after 6dd69f0064f1
Branches
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