GPT/ZFS/USB mountroot prompt

Carl Chave carl at
Wed Dec 1 05:20:39 UTC 2010

On Wed, Dec 1, 2010 at 12:07 AM, Carl Chave <carl at> wrote:
> I followed a gpt/zfs on USB stick guide for putting a base 8.1-RELEASE
> amd64 onto a 4GB sandisk USB memory stick.  All went fairly well and
> the system will boot but fails to mount the root file system and dumps
> me a the mountroot> prompt.  Entering zfs:zrootusb at the prompt works
> and the system finishes booting.
> In /boot/loader.conf I've got:
> zfs_load="YES"
> vfs.root.mountfrom="zfs:zrootusb"
> zrootusb mountpoint is set to legacy and /etc/fstab exists but is
> empty, per the guide.
> Any ideas?
> Thanks,
> Carl


to /boot/loader.conf seems to have fixed it.

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