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Date: Sun, 17 May 2020 15:39:24 +0300
From: Konstantin Kulikov <k.kulikov2@gmail.com>
To: ~alpine/users@lists.alpinelinux.org
Subject: Re: ZFS ROOT fails with mount: mounting zroot/ROOT/default on
 /sysroot failed: No such file or directory
Message-Id: <20200517153924.95ef3d463716b05d8c4009a8@gmail.com>
In-Reply-To: <CAGc0WKtQNEWj1KwKMevqa5KHVYKM4sA+c8LuTL-a-Mszgr=TVQ@mail.gmail.com>
References: <CAGc0WKtQNEWj1KwKMevqa5KHVYKM4sA+c8LuTL-a-Mszgr=TVQ@mail.gmail.com>
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> LABEL lts
>   MENU default
>   MENU LABEL Linux lts
>   LINUX vmlinuz-lts
>   INITRD initramfs-lts
>   APPEND ROOT=zpool/ROOT/default modules=sd-mod,usb-storage,zfs quiet

I think if you change to APPEND root=zpool/ROOT/default" (root lowercased)
and add "zfs_force=1" it'll start working.

Another thing you can try is to set
# zfs set mountpoint=/ zpool/ROOT/default
and in bootloader:
APPEND root=ZFS=zpool/ROOT/default
rootfstype and zfs_force are not neccessary in this case.


It's difficult for me to say exactly what the problem is
because interaction between initramfs-init and nlplug-findfs
is complicated in zfs case and I have troubles reading C code.

Relevant links:
https://git.alpinelinux.org/mkinitfs/tree/initramfs-init.in#n506
https://git.alpinelinux.org/mkinitfs/tree/nlplug-findfs.c#n1015