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Date:      Thu, 14 Jan 2021 08:52:37 +0100
From:      Andrea Venturoli <ml@netfence.it>
To:        Jason Tubnor <jason@tubnor.net>
Cc:        "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   Re: After 12.1->12.2 upgrade FreeBSD bhyve guest does not start anymore
Message-ID:  <b9694a03-7079-58cc-297e-ebcf31834b2d@netfence.it>
In-Reply-To: <CACLnyCLtEZM8AOCLR9MhMfmnk9zxk=gAXfAWeJ40yXuyuLeuZQ@mail.gmail.com>
References:  <0ed9c5b2-8113-02c4-ae7b-4dc41d3c0e02@netfence.it> <d309e6c4-6cc9-b225-c159-a1594aebf093@freebsd.org> <0b45bff7-b6a1-2880-43ce-a6bb20625d70@netfence.it> <CACLnyCLtEZM8AOCLR9MhMfmnk9zxk=gAXfAWeJ40yXuyuLeuZQ@mail.gmail.com>

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On 1/14/21 5:47 AM, Jason Tubnor wrote:

> Is your guest running within a zvol?

Yes!
I've got disk0_dev="sparse-zvol" in my vm-bhyve config file.



> What is the volmode parameter set  to on that zvol?

# zfs get volmode zroot/vm/f11b/disk0
NAME                 PROPERTY  VALUE    SOURCE
zroot/vm/f11b/disk0  volmode   default  default

# sysctl vfs.zfs.vol.mode
vfs.zfs.vol.mode: 1

I.e. "geom"

Should I change that to "dev"?

While I know I can change only one volume at a time, how would this 
impact Windows VMs?

  bye & Thanks
	av.



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