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Date:      Tue, 19 Jan 2010 10:46:43 -0500
From:      Steve Bertrand <>
To:        krad <>
Cc:        "" <>
Subject:   Re: Can't mountroot from ZFS pool
Message-ID:  <>
In-Reply-To: <>
References:  <> <>

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krad wrote:
> 2010/1/11 Steve Bertrand < <>>
>     All,
>     I've successfully upgraded the disks in my ZFS backup server, and can
>     import/mount the pool properly.
>     However, I designed this box originally so that it mounts / from
>     zfs:storage after booting from a USB stick.
>     After the upgrade of the disks, I'm stuck at a mountroot prompt when I
>     attempt to boot the system with the original USB /boot key.
>     Can someone inform me how to find the / filesystem at the mountroot
>     prompt? If not, is there *any* way to boot the system normally from
>     another medium, and then 'reload' the system with the ZFS / after its
>     been mounted so that the system functions as designed (ie. cron
>     works etc)?

> did you export the pool at all before rebooting it?

Yes, I did.

I just finally got it resolved :)

It appears as though by importing the zpool onto another system
obsoleted the cache file on the original USB /boot disk.

I exported, then imported the pool on the secondary system, then copied
the cache file into the /boot/zfs directory on my original boot medium.

Things are now working again, and I have all of my new storage and
original data in place!

Thanks for all the help!


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