Re: zfs module not loaded anymore on e.g MINIMAL

From: h v <henry.vogt_at_gmail.com>
Date: Tue, 17 Mar 2026 15:12:39 UTC
HI,

adding the line

options     ZSTDIO            # zstd-compressed kernel and user dumps

to my custom kernel config fixed my problem.

so it's likely necessary to add to MINIMAL config to restore loading zfs 
module on boot.

Regards

Henry

Am 16.03.26 um 19:02 schrieb Warner Losh:
> Does any kernel load it correctly?
>
> Warner
>
> On Mon, Mar 16, 2026 at 11:45 AM h v <henry.vogt@gmail.com> wrote:
>
>     Hi,
>
>     on current (since ~ March 15th) my custom kernel, based on
>     MINIMAL, as
>     well as  MINIMAL itself,  don't load zfs and hence refuses to
>     mount the
>     root fs ... while GENERIC does..
>
>     Error (in dmesg) seems to be:
>
>
>     kernel: link_elf_obj: symbol ZSTD_isError undefined
>
>     kernel: KLD file zfs.ko - could not finalize loading
>
>
>
>     Regards
>
>     Henry
>
>
>