Re: removing GELI from a zfs-on-root system

[Xin Li]

Technically, if the user can find a space (can even be a md device if they feel lucky but I don't really recommend doing it that way) as large as the root pool's device, they could accomplish the goal by attaching the new device as a mirror to the old root device's mirror, remove old device and do the same dance again in reverse order.

zpool attach mybootpool /dev/mygelidevice /dev/newdisk



zpool scrub mybootpool

Run "zpool status mybootpool 10" until scrub is finished with no error.

Then:

zpool detach mybootpool /dev/mygelidevice



Cheers,

Assuming the pool is called "mybootpool", old device is "mygelidevice" and new device is "newdisk": Then wait for the resilvering to be done. I would do a scrub to verify that everything is good here: Now destroy the GELI device, repeat the steps above but swap the two devices.

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