Re: `zpool list` return No such file or directory

On Sun, Nov 17, 2024 at 6:33 AM Jinsong Zhao <jszhao@yeah.net> wrote:
>
> Hi there,
>
> I have successfully installed FreeBSD 14.1 root on ZFS using GPT with
>   VirtualBox. Now I tried to migrate the whole system to a new disk:
>
>
> zfs snapshot E580/ROOT/fb14@today
>
> zpool create test /dev/ada1p2
>
> zfs send -R E580/ROOT/fb14@today | zfs receive test/fb14
>
> All done successfully.
>
> After that, I tried to list all pools using
>
> zpool list
>
> It came back:
>
> No such file or directory

This should be impossible, unless there are some steps missing.  Is
this on the system with E580 or ada1p2?  Did you reboot after the "zfs
receive" but before the "zpool list"?  If so, you need to do a "zpool
import".  If you want that to happen automatically, you need to add
"zfs_enable=YES" to /etc/rc.conf .

>
> I tried other zfs related commands, all give the same return.
>
> Now, I reboot the whole system, I can not even enter the system.

If you are trying to create a second zfs-root system, based on copying
the file system from an already-working system, you left out a few
steps:

* You only send/received a single boot environment, but there's more
to the pool than that.  You should do something more like "zfs send -R
E580@today | zfs receive -F test"
* You need to set the bootable fs with "zfs set bootfs=test/ROOT/fb14 test"
* You didn't install the bootloader onto ada1p1.  The details of how
to do that vary based on whether you are booting with EFI or BIOS.

>
> What's the problem? I cannot find any hints with zpool/zfs man page.
>
>
> Best,
>
> Jinsong
>
>
>