[Bug 256422] bhyve and Centos/Rocky 8.4 no boot after install

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 07 Jun 2021 20:28:25 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256422

Peter Grehan <grehan@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |grehan@FreeBSD.org

--- Comment #3 from Peter Grehan <grehan@FreeBSD.org> ---
I was able to repro this with Alma 8.3/8.4 (identical to Centos 8.3/8.4).

With a file-backed image on ZFS, the sectorsize parameter was forced to 4K and
512, with no difference in getting the system to boot.

The error appears to be in the EFI loader on Centos:

"
BdsDxe: loading Boot0001 "UEFI bhyve-NVMe NVME-4-0" from
PciRoot(0x0)/Pci(0x4,0x0)/NVMe(0x1,01-00-DD-44-20-FC-9C-58)
BdsDxe: starting Boot0001 "UEFI bhyve-NVMe NVME-4-0" from
PciRoot(0x0)/Pci(0x4,0x0)/NVMe(0x1,01-00-DD-44-20-FC-9C-58)
Unexpected return from initial read: Device Error, buffersize 0
Failed to load image \EFI\almalinux\grubx64.efi: Device Error
start_image() returned Device Error
StartImage failed: Device Error
"

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