Adding mirror to boot gives error

[remonv76]

I have a single boot device Intel nvme ssd 223GB diskspace and want to add a mirror device. Samsung nvme Pro 237GB diskspace, but get an error when attaching the samsung nvme. I use truenas 13.0, not u1. (See attachment)

Also in the console I see these errors
Initialization of plugin `ctl' failed with status -1. Plugin will be unloaded.
Error: one or more plugin init callbacks failed.

Does anyone knows what could be wrong? I can create a mirror when installing truenas, but a reinstall is not an option anymore.

 

[remonv76]

Seems issue is still not fixed in U1

Cannot attach second USB drive to boot pool - ERROR NoneType object is not subscriptable

Upgraded from 12.x to 13.0 and figured it might be wise to add a mirror USB stick to my boot pool. Having seen issues with not using the same make/size/brand I got a second Samsung Cruze 32GB to match the original. However following the steps to Attach. after a pause I get the error above I...

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