Comment 6 for bug 1874524

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Kyle Tinker (shamrock-computing) wrote : Re: ZFS installation fails with; Failed to add #4 partition: Numerical result out of range

I can confirm that I get the same error, switched to UEFI, and the problem went away.

See my bugreport here: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1875084