11-RELEASE acting as vbd backend

[Nathan Friess]

On 12/6/2016 3:04 AM, Roger Pau Monné wrote:
>
> Hello,
>
> There have been some blkback changes in FreeBSD 11.0 in order to support using
> more disk types from blkback (like iSCSI). In order to achieve this, if you want
> to use blkback from a driver domain you will have to install the xen-tools
> package in the driver domain, and execute the xendriverdomain at domain startup
> (add xendriverdomain_enable="YES" to your rc.conf). After that, everything
> should work as expected.


Hi Roger,

I installed xen-tools and added xendriverdomain_enable="YES" to rc.conf. 
  After rebooting this is what I see:

Dec  6 19:14:20 host xenstored: Checking store ...
Dec  6 19:14:20 host xenstored: Checking store complete.
Dec  6 19:14:20 host xenstored: Checking store ...
Dec  6 19:14:20 host xenstored: Checking store complete.
Dec  6 19:14:21 host kernel: Failed to initialize dom0 state: No such 
file or directory
Dec  6 19:14:22 host kernel: .
Dec  6 19:14:51 host last message repeated 28 times
Dec  6 19:14:52 host xenconsoled: Failed to contact xenstore (No such 
file or directory).  Is it running?


Trying to start xenstoredomain manually results in:

Starting xenservices: xl devd.libxl: error: libxl.c:124:libxl_ctx_alloc: 
cannot connect to xenstore: No such file or directory
cannot init xl context


The kernel is showing a xenstore device on boot

... kernel: xenstore0: <XenStore> on xenpv0


I see that there is a xencommons rc script too so I also tried to add 
xencommons_enable="YES" and start that first.  No luck.

I must still be missing a step...

Thanks,

Nathan