Update: The error about the DB schema from the apt version of lxd (/usr/bin/lxd) was due to apt, for some reason, deciding to install lxd *2.0.11* instead of the 2.21 I had been using from backports. I forced the backport version and now both LXD daemons start concurrently!
However, lxd.migrate doesn't complete cleanly. See below. I am using ZFS for storage but I have no idea why it's trying to umount / ! # lxd.migrate => Connecting to source server => Connecting to destination server => Running sanity checks === Source server LXD version: 2.21 LXD PID: 17828 Resources: Containers: 9 Images: 3 Networks: 1 Storage pools: 1 === Destination server LXD version: 3.0.0 LXD PID: 3238 Resources: Containers: 0 Images: 0 Networks: 0 Storage pools: 0 The migration process will shut down all your containers then move your data to the destination LXD. Once the data is moved, the destination LXD will start and apply any needed updates. And finally your containers will be brought back to their previous state, completing the migration. Are you ready to proceed (yes/no) [default=no]? yes => Shutting down the source LXD => Stopping the source LXD units => Stopping the destination LXD unit => Unmounting source LXD paths => Unmounting destination LXD paths => Wiping destination LXD clean => Moving the data => Moving the database => Backing up the database => Opening the database => Updating the storage backends error: Failed to update the storage pools: Failed to run: zfs set mountpoint=/var/lib/snapd/hostfs/ tank/root: umount: /: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1).) cannot unmount '/': umount failed Current state of my ZFS volumes: # zfs list NAME USED AVAIL REFER MOUNTPOINT tank 556G 1.21T 19K none tank/containers 182G 1.21T 19K none tank/containers/cont1 18.9G 1.21T 18.1G /var/snap/lxd/common/lxd/storage-pools/tank/containers/cont1 tank/containers/cont2 5.85G 1.21T 6.03G /var/snap/lxd/common/lxd/storage-pools/tank/containers/cont2 tank/containers/cont3 252M 1.21T 433M /var/snap/lxd/common/lxd/storage-pools/tank/containers/cont3 tank/containers/cont4 10.5G 1.21T 9.00G /var/snap/lxd/common/lxd/storage-pools/tank/containers/cont4 #... etc (for several more containers) On Wed, Apr 11, 2018 at 11:54 PM, Sean McNamara <smc...@gmail.com> wrote: > Hi, > > I'm on Ubuntu 16.04; the last working version of LXD I had was 2.21 > from backports. > > I wanted to upgrade to 3.0 but it isn't in the backports repo yet, it > seems, so I went ahead and installed the snap. Then I removed the > original package, perhaps not realizing until it was too late that I > wasn't suppposed to do that. > > It seems the lxd.migrate command that you're *supposed* to run (which > I wasn't aware of until recently) requires the original lxd server to > be running -- that is, in my case, the one installed via apt. However, > that one now won't start. It says: > > error: The database schema is more recent than LXD's schema. > > I wish the lxd binary had more flexibility and information about: > > - How do I identify the directory where this lxd command is looking > for its database/config files? > - How do I *tell it* to use a specific (non-default) directory for > its database/config files? > - What environment variables should I check, if those are applicable? > > That info should go in `lxd --help`, IMO. As of now I'm stuck on this > error. I assume I have a working LXD database in the normal /var > location that somehow got updated to database schema for version 3.0, > but I can't start *either* version of LXD now. > > When I try to start /usr/bin/lxd, I get the above error. When I try to > start /snap/lxd/bin/lxd, it just hangs trying to connect: > > # /snap/lxd/current/bin/lxd -d > DBUG[04-12|03:54:05] Connecting to a local LXD over a Unix socket > DBUG[04-12|03:54:05] Sending request to LXD etag= > method=GET url=http://unix.socket/1.0 > > How can I salvage my original LXD config / containers in /var/lib/lxd > and make it work with the snap? > > Thanks, > > Sean _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users