Re: Failure to boot after upgrade 14.3->14.4 with "ZFS: unsupported feature: com.klarasystems: vdev_zaps_v2"

Reply: Einar Indridason : "Re: Failure to boot after upgrade 14.3->14.4 with "ZFS: unsupported feature: com.klarasystems: vdev_zaps_v2""
In reply to: Daniel Tameling : "Re: Failure to boot after upgrade 14.3->14.4 with "ZFS: unsupported feature: com.klarasystems: vdev_zaps_v2""
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From: Johan Helsingius <julf_at_Julf.com>
Date: Fri, 01 May 2026 06:18:51 UTC

On 30/04/2026 9:46 pm, Daniel Tameling wrote:
> Google suggests that your bootloader doesn't support the features of the root partition. Did you perhaps do a "zfs upgrade"? You need to boot from external medium and update the bootloader.
>   Depending on whether you use UEFI or Bios the steps differ.

Thanks - yes, I managed to solve the issue. Booted up on an installer
USB stick, mounted the zfs filesystem, and did an update/upgrade.

	Julf