10.2-RELEASE guest in Hyper-V boot failed.

[Wei Hu]

Try /dev/da1p2, /dev/da2p2, etc. If I remember correctly, there was a change in the Hyper-V storage code which started to use kernel's SCSI scanning code instead of its own. This may cause the different order of disk discovery.

The commit might have merged into 10 stable branch after 10.1 was released, though I am not 100% sure.

Wei
 

> -----Original Message-----
> From: owner-freebsd-virtualization at freebsd.org [mailto:owner-freebsd-
> virtualization at freebsd.org] On Behalf Of hshh
> Sent: Monday, August 17, 2015 6:37 PM
> To: freebsd-virtualization at freebsd.org
> Subject: 10.2-RELEASE guest in Hyper-V boot failed.
> 
> After upgrade to 10.2-RELEASE from 10.1, my FreeBSD guest hang on boot.
> Kernel can not find out rootfs.
> All daX devices size is 0MB !!
> Someone has this issue too,
> https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fforums
> .freebsd.org%2fthreads%2f10-2-cant-see-hdd-on-hyper-v-
> 2k8r2.52797%2f&data=01%7c01%7cweh%40microsoft.com%7cf25547e255284
> 4640abe08d2a6efc2d5%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=
> OurrirRoKEriFaYm17JAcwBO3nswmMCM9mKmF1Td2tk%3d
> 
> Hyper-V host is win2008.
> 
> As 10.1, HDD mounted in freebsd is da0p2.
> # gpart show
> =>      34  41942973  da0  GPT  (20G)
>         34      1024    1  freebsd-boot  (512K)
>       1058   4194304    2  freebsd-swap  (2.0G)
>    4195362         6       - free -  (3.0K)
>    4195368  37747632    3  freebsd-ufs  (18G)
>   41943000         7       - free -  (3.5K)
> 
> # df -h
> Filesystem    Size    Used   Avail Capacity  Mounted on
> /dev/da0p3     17G    5.0G     11G    31%    /
> devfs         1.0K    1.0K      0B   100%    /dev
> 
> # swapinfo
> Device          1K-blocks     Used    Avail Capacity
> /dev/da0p2        2097152     2116  2095036     0%
> 
> --
> @hshh
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