PCI virtual hard drive not working

[aportelli]

Hi,

I have setup a CentOS 7 VM under FreeNAS 11 U2 with the last version of iohyve (v0.7.9). My VM has the folowing properties:

# iohyve getall builder
Getting builder iohyve properties...

bargs          -A_-H_-P
boot           1
con            nmdm1
cpu            4
description    Wed Jul  5 17:41:54 UTC 2017
fw             BHYVE_UEFI.fd
install        no
loader         uefi
mac_tap1       00:a0:98:a5:f3:87
name           builder
os             custom
pcidev:1       ahci-hd,/dev/zvol/tank/vdisks/builder-intel
pcidev:2       ahci-hd,/dev/zvol/tank/vdisks/builder-home
persist        1
ram            8G
sectorsize     512
size           20G
tap            tap1
template       NO
vnc            YES
vnc_h          1024
vnc_ip         0.0.0.0
vnc_port       5900
vnc_tablet     YES
vnc_w          1280
vnc_wait       NO

I installed the OS without problem using a VNC session and it was working for a while but now after a reboot of the machine I can't get the two ZVOL to be mounted in the VM again. Just to be clear:

• The 2 ZVOLs do exist and are accessible.
• From the VM I got that the two pcidev do no exist (I just have /dev/sda which is the VM main drive) so I don't believe it is a system configuration issue.

Any help is very welcome, thanks!

[aportelli]

I just solved it by reading iohyve's source, the solution might be useful here. For some reason a UEFI VM is not going to boot if the sector size is not passed explicitly to bhyve. I changed the properties to:

# iohyve getall builder
Getting builder iohyve properties...

bargs          -A_-H_-P
boot           1
con            nmdm1
cpu            4
description    Wed Jul  5 17:41:54 UTC 2017
fw             BHYVE_UEFI.fd
install        no
loader         uefi
mac_tap1       00:a0:98:a5:f3:87
name           builder
os             custom
pcidev:1       ahci-hd,/dev/zvol/tank/vdisks/builder-intel,sectorsize=512
pcidev:2       ahci-hd,/dev/zvol/tank/vdisks/builder-home,sectorsize=512
persist        1
ram            8G
sectorsize     512
size           20G
tap            tap1
template       NO
vnc            YES
vnc_h          1024
vnc_ip         0.0.0.0
vnc_port       5900
vnc_tablet     YES
vnc_w          1280
vnc_wait       NO

and everything is fine now.