https://docs.freebsd.org/en/books/handbook/bsdinstall/#bsdinstall-pre Specifically, section 2.3.1.1. There is considerable verbiage about syntax variations and "1m" vs. "1M". As the unit for bs is bytes, it would be simpler to specify bs=1048576, which will work with all dd variants. As an aside, it could be pointed out that 1048576 is 1 mebibyte, i.e. 1024 * 1024 bytes (optionally referencing SI prefixes https://www.bipm.org/en/publications/si-brochure https://www.nist.gov/pml/weights-and-measures/metric-si-prefixes and IEC binary power prefixes https://www.nist.gov/pml/special-publication-330/sp-330-section-3 https://en.wikipedia.org/wiki/IEC_60027 ).
While there, s/Write the Image/write the image/ in text.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/doc/commit/?id=63c762bef3257c103ac998f014facfd27bf1f382 commit 63c762bef3257c103ac998f014facfd27bf1f382 Author: Sergio Carlavilla Delgado <carlavilla@FreeBSD.org> AuthorDate: 2023-08-30 15:35:01 +0000 Commit: Sergio Carlavilla Delgado <carlavilla@FreeBSD.org> CommitDate: 2023-08-30 15:35:01 +0000 Handbook - bsdinstall: Fix typo PR: 253874 Reported by: Pau Amma <pauamma@gundo.com> documentation/content/en/books/handbook/bsdinstall/_index.adoc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
I fixed the typo reported by Pau Amma, but I think it's better to have 1M instead of bs=1048576. If you copy it by hand, an error is more likely to occur.