Date: Tue, 4 Mar 2014 12:48:59 -0800 From: Craig Rodrigues <rodrigc@FreeBSD.org> To: "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Cc: Xin Li <delphij@freebsd.org>, "jenkins-admin@freebsd.org" <jenkins-admin@freebsd.org> Subject: Problem with ZFS userboot changes r262331 and VM with mixed partitions Message-ID: <CAG=rPVd5OQ1Gw6q-e94Ffnk_zPxkFvjaR5bpOOjMg7j-9AvSdw@mail.gmail.com>
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Hi,
I encountered problems with the new changes to userboot
to boot ZFS.
About a month ago, I created a FreeBSD 10 VM with the following
layout:
=> 34 419430333 md0 GPT (200G)
34 128 1 freebsd-boot (64K)
162 2097152 2 freebsd-ufs (1.0G)
2097314 8388608 3 freebsd-swap (4.0G)
10485922 408944444 4 freebsd-zfs (195G)
419430366 1 - free - (512B)
The FreeBSD root file system is on p4, which is ZFS.
On the root file system, I have a symlink:
/boot -> /bootdir
/bootdir mounts p2 which is UFS.
So in this scenario, the kernel lives on UFS.
When I did this about a month ago, during the BHyve boot process,
(1) userboot loaded the kernel from p2 (UFS)
(2) The kernel booted, loaded zfs.ko, and then proceeded to mount p4 where
the root file system lived (ZFS)
After r262331, when I try to boot the BHyve VM
(1) I can see p4 from the loader prompt
(2) The kernel doesn't load
(3) If I try to load /boot/kernel/kernel from the loader prompt, I get:
ZFS: i/o error - all block copies unavailable
I don't fully understand all this logic. Is there a bug that can be fixed here?
--
Craig
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