MAAS 3.1 with Bcache and ZFS (on RAID6) fails near the end of deployment

Users
1

Hi,

This setup used to deploy without issues on my MAAS PPA version 3.1b4 → 3.1…

I recently started over with a clean MAAS 3.1 PPA install and this same setup now fails.

When I setup bcache:

  • sda as boot
  • sdh as the cache
  • md0 (RAID6 with 6 drives) as backing device
  • with zfsroot as the file system

It fails trying to write a file descriptor to an endpoint near the end of the deployment. (scrolls by too fast to see)

I have these two drives:

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2

I got a good snapshot before it reboot. Here’s the drive setup.

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3

Hi, the zfsroot filesystem type is only meant to be used for the root device.

MAAS doesn’t currently support deploying with ZFS for devices other than the root one.

4

Oh ok, understood, but it’s interesting that it’s worked before the clean 3.1 install.