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I've got a 10.3 system that's running a "custom" kernel with VNET enabled for my iocage jails. What am I in for when I upgrade? How do I keep my ZFS pool safe t

• mioelnir 10y ago
  Why would your zpool be in any danger from the upgrade? If you upgrade via freebsd-update and have renamed your custom kernel (and not named it GENERIC), then freebsd-update will tell you when to build and install a new version of your kernel. If you kept GENERIC as the name of your custom kernel, which is a really really bad idea, then freebsd-update will probably still replace it with a vanilla kernel, haven't checked that in a while. In that case either rebuild your 10.3 kernel again with a fixed name, or upgrade to 11 from source.
• crest 10y ago
  If your pool is layed out in a beadm compatible way you can use beadm. Otherwise just snapshot your root dataset recursively and rollback the whole pool in the unlikely case that the update fails. Once the upgrade succeeded (including the new boot blocks) you can upgrade your pool by enabling the latest feature flags.