On 2018-04-28T09:08:42 +0300 Daniel Braniss <da...@cs.huji.ac.il> wrote:
> since the clients and the server are sharing the zfs volume, > I’m doing the following: > on the server I did: > zfs create -sV 4G h/root.ro <http://root.ro/> > newfs /dev/zvol/h/root.ro <http://root.ro/> > mount /dev/zol/h/root.ro <http://root.ro/> /mnt > copy a working root image to it. > umount /mnt > the clients then mount it as ro, > the vm conflg file has: > disk0_type=virtio-blk” > disk0_name=“/dev/zvol/h/root.ro <http://root.ro/>” > disk0_dev=“custom” > > one solution to the fact that the root is read-only is to use unionfs > (probably nullfs will do too) > > the only problem I have is updating the image. Wow, didn't know this was possible. Is this safe? Two essentially independent operating system instances being able to write to the same zvol? -- Mark Raynsford | http://www.io7m.com
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