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Use miniroot disk on OpenBSD for UEFI

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installXY.img is intended for offline installation, weighs several
hundreds of megabytes and requires mounting itself during boot to
provide included file sets, which will not work when loaded entirely
into RAM without backing device as 'sanboot' does on UEFI.

Even if it worked, users may wish to fetch only a subset of sets or
use different sources/networks in which case preloading everything
via iPXE just wastes time and resources.

miniroot78.img weights less than six megabytes and fully fits into RAM.
It does not mount any disk or CD, i.e. does not depend on memory disks.
It works the same for any platform or boot firmware, but needs network.

Use miniroot to fix UEFI boot.

See https://www.openbsd.org/faq/faq4.html#Download for available images.
This commit is contained in:
Klemens Nanni 2025-12-14 01:10:56 +03:00
parent 16f2ec03dc
commit 585ff0bb5a
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2
roles/netbootxyz/templates/menu/openbsd.ipxe.j2
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@ -30,7 +30,7 @@ chain ${memdisk} iso raw
goto openbsd_menu
:efi_boot
set src ${openbsd_mirror}/${openbsd_base_dir}/${ver}/${os_arch}/install${image_ver}.img
set src ${openbsd_mirror}/${openbsd_base_dir}/${ver}/${os_arch}/miniroot${image_ver}.img
imgfree
sanboot ${src}
goto openbsd_menu