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Removing EFI (format -e not working?)
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hume.spamfil...@bofh.ca  
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 More options Dec 3 2008, 10:54 am
Newsgroups: comp.unix.solaris
From: hume.spamfil...@bofh.ca
Date: Wed, 3 Dec 2008 15:54:27 +0000 (UTC)
Local: Wed, Dec 3 2008 10:54 am
Subject: Removing EFI (format -e not working?)
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I'm trying to attach a disk to a ZFS root pool to mirror it after
installation.  However, I get this:

shumira:/# zpool attach rpool c5d0 c5d1
cannot label 'c5d1': EFI labeled devices are not supported on root pools.

When I try to use the recommended means of removing the EFI label:

# format -e c5d1
selecting c5d1
[ etc etc ]
format> label
[0] SMI Label
[1] EFI Label
Specify Label type[0]: 0
Ready to label disk, continue? y

format> quit
shumira:/# zpool attach rpool c5d0 c5d1
cannot label 'c5d1': EFI labeled devices are not supported on root pools.

I must be missing something obvious.  This is on OpenSolaris Indiana b100.
I'll check with zfs-discuss, but I figured I start here.

--
Brandon Hume    - hume -> BOFH.Ca, http://WWW.BOFH.Ca/


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hume.spamfil...@bofh.ca  
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(1 user)  More options Dec 3 2008, 10:58 am
Newsgroups: comp.unix.solaris
From: hume.spamfil...@bofh.ca
Date: Wed, 3 Dec 2008 15:58:37 +0000 (UTC)
Local: Wed, Dec 3 2008 10:58 am
Subject: Re: Removing EFI (format -e not working?)
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hume.spamfil...@bofh.ca wrote:
> shumira:/# zpool attach rpool c5d0 c5d1
> cannot label 'c5d1': EFI labeled devices are not supported on root pools.

Figures.  I knew I was doing something stupid.

zpool attach -f rpool c5d0s0 c5d1s0 worked fine.

--
Brandon Hume    - hume -> BOFH.Ca, http://WWW.BOFH.Ca/


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Dave Uhring  
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 More options Dec 3 2008, 11:18 am
Newsgroups: comp.unix.solaris
From: Dave Uhring <daveuhr...@yahoo.com>
Date: Wed, 03 Dec 2008 10:18:29 -0600
Local: Wed, Dec 3 2008 11:18 am
Subject: Re: Removing EFI (format -e not working?)
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On Wed, 03 Dec 2008 15:58:37 +0000, hume.spamfilter wrote:
> hume.spamfil...@bofh.ca wrote:
>> shumira:/# zpool attach rpool c5d0 c5d1
>> cannot label 'c5d1': EFI labeled devices are not supported on root pools.

> Figures.  I knew I was doing something stupid.

> zpool attach -f rpool c5d0s0 c5d1s0 worked fine.

I got that far with an EFI mirror disk also.  But installing GRUB on the
second drive was no go.

I booted a Slackware Linux CD and removed the EFI label:

dd if=/dev/zero of=/dev/sdb


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