From Newsgroup: muc.lists.freebsd.stable

So after many years, I tried to install instead of upgrading,
and after much fiddling (if anyone is interested I can write how I did i) I got it to
install, now here is my problem:
when the the local disk was empty, loader.efi is called (this via dhcp) and it boots diskless,
but now that the disk is populated, it boots from it.
Q: how can I have it boot diskless again?
Cheers,
Danny
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From Newsgroup: muc.lists.freebsd.stable

On Tue, 23 Sep 2025, Daniel Braniss wrote:

So after many years, I tried to install instead of upgrading,
and after much fiddling (if anyone is interested I can write how I did i) I got it to
install, now here is my problem:
when the the local disk was empty, loader.efi is called (this via dhcp) and it boots diskless,
but now that the disk is populated, it boots from it.

Q: how can I have it boot diskless again?

I haven't seen an answer. Have you tried the freebsd-virtualization list?

I assume you could interrupt the boot process if fast enough (but it's the blink of an eye);
so you'll most likely be more successful putting a startup.nsh and possibly an EFI shell in the EFI System Partition (ESP) and script it? Could be the bhyve firmware brings the efi shell along already?

/bz
--
Bjoern A. Zeeb r15:7


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From Newsgroup: muc.lists.freebsd.stable

On Thu, Oct 9, 2025 at 11:15rC>PM Daniel Braniss <danny@cs.huji.ac.il> wrote:

On 10 Oct 2025, at 00:33, Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net> wrote:

On Tue, 23 Sep 2025, Daniel Braniss wrote:

So after many years, I tried to install instead of upgrading,
and after much fiddling (if anyone is interested I can write how I did i) I got it to
install, now here is my problem:
when the the local disk was empty, loader.efi is called (this via dhcp) and it boots diskless,
but now that the disk is populated, it boots from it.

Q: how can I have it boot diskless again?

I haven't seen an answer. Have you tried the freebsd-virtualization list?

I assume you could interrupt the boot process if fast enough (but it's the blink of an eye);
so you'll most likely be more successful putting a startup.nsh and possibly an EFI shell in the EFI System Partition (ESP) and script it? Could be the bhyve firmware brings the efi shell along already?

/bz

--
Bjoern A. Zeeb r15:7

hi,
no answer yet, but after some experimenting:
boots diskless:
if no local disk - dah
if local disk and no EFI partition
if local disk has the above but no valid root partition
and finally if root partition and efi but no bootx64.efi ( i just move it to bootx64.efix)

Can you try the case where there is a non-bootable ZFS partition?
When I have a non-bootable ZFS partition with a zpool in it, bhyve decides that is the root and fails to boot the UFS root fs. I need to:
currdev=disk0s1
boot
to get it to boot.
I don't know if this is what you might be seeing? rick

thanks,
danny
ps: i guess i forgot to mention that the host is running in bhyve (14.3) pass: itrCOs now alpha-5

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