Pools can also be imported using an alternate root location. This feature allows for recovery situations, where the mount points should not be interpreted in context of the current root mount point, but under some temporary directory where repairs can be performed. This feature also can be used when you are mounting removable media as described in the preceding section.
In the following example, a pool called morpheus is imported with /mnt as the alternate root mount point. This example assumes that morpheus was previously exported.
# zpool import -R /a pool # zpool list morpheus NAME SIZE ALLOC FREE CAP HEALTH ALTROOT pool 44.8G 78K 44.7G 0% ONLINE /a # zfs list pool NAME USED AVAIL REFER MOUNTPOINT pool 73.5K 44.1G 21K /a/pool