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ZFS-UPGRADE(8) System Manager's Manual ZFS-UPGRADE(8)


zfs-upgradeManage upgrading the on-disk version of filesystems.


zfs upgrade

zfs upgrade -v

zfs upgrade [-r] [-V version] -a | filesystem


zfs upgrade
Displays a list of file systems that are not the most recent version.
zfs upgrade -v
Displays a list of currently supported file system versions.
zfs upgrade [-r] [-V version] -a | filesystem
Upgrades file systems to a new on-disk version. Once this is done, the file systems will no longer be accessible on systems running older versions of the software. zfs send streams generated from new snapshots of these file systems cannot be accessed on systems running older versions of the software.

In general, the file system version is independent of the pool version. See zpool(8) for information on the zpool upgrade command.

In some cases, the file system version and the pool version are interrelated and the pool version must be upgraded before the file system version can be upgraded.

Upgrade to the specified version. If the -V flag is not specified, this command upgrades to the most recent version. This option can only be used to increase the version number, and only up to the most recent version supported by this software.
Upgrade all file systems on all imported pools.
Upgrade the specified file system.
Upgrade the specified file system and all descendent file systems.



June 30, 2019 Linux