[linux-lvm] vgscan problem: Snapshot and origin LVs must differ.

[linux-lvm] vgscan problem: Snapshot and origin LVs must differ.

[Alessandro Ferrari]

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Hi Guys!

I tell you my LVM story....

I have add LVM1 capability to my linux box kernel 2.4.36.5.

So I make (whit success) a snapshot of my /dev/VOLHOME/HOMELV! Snapshot's name is SNAPHOME.

Than I restart my linux box.

Now I can't mount /dev/VOLHOME/HOMELV and "vgscan -v" write this messages:

:
:
    /dev/sdb1: size is 3906204687 sectors
    /dev/sdb1: lvm1 label detect
    Locking /var/lock/lvm/V_VOLHOME RB
  Finding volume group "VOLHOME"
    /dev/sdb1: lvm1 label detected
    Found /dev/sdb1 in VG VOLHOME
Snapshot and origin LVs must differ.
Couldn't add snapshot.
    Found /dev/sdb1 in VG VOLHOME
Snapshot and origin LVs must differ.
Couldn't add snapshot.
Volume group "VOLHOME" not found
    Unlocking /var/lock/lvm/V_VOLHOME
:
:

I don't know what's happen!

Help me please, thanks Alessandro

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Re: [linux-lvm] vgscan problem: Snapshot and origin LVs must differ.

[Alasdair G Kergon]

On Thu, Jul 10, 2008 at 05:08:24PM +0200, Alessandro Ferrari wrote:
> I tell you my LVM story....
> I have add LVM1 capability to my linux box kernel 2.4.36.5.
 
> Now I can't mount /dev/VOLHOME/HOMELV and "vgscan -v" write this messages:
>     /dev/sdb1: size is 3906204687 sectors

That's output from lvm2 - but you say your kernel only has lvm1 in it.
You can't mix and match them like that: work out what you meant to
run - lvm1 or lvm2.

Alasdair
-- 
agk@redhat.com

Re: [linux-lvm] vgscan problem: Snapshot and origin LVs must differ.

[Alessandro Ferrari]

Hi Alasdair!

I writed you log message show me by sysreccd 1.4beta7.

This sysresccd version is lvm1 capable.

I don't understand what means:

"Snapshot and origin LVs must differ." ?

Thanks, Alessandro


----- Original Message ----- 
From: "Alasdair G Kergon" <agk@redhat.com>
To: "LVM general discussion and development" <linux-lvm@redhat.com>
Sent: Thursday, July 10, 2008 5:10 PM
Subject: Re: [linux-lvm] vgscan problem: Snapshot and origin LVs must 
differ.


> On Thu, Jul 10, 2008 at 05:08:24PM +0200, Alessandro Ferrari wrote:
>> I tell you my LVM story....
>> I have add LVM1 capability to my linux box kernel 2.4.36.5.
>
>> Now I can't mount /dev/VOLHOME/HOMELV and "vgscan -v" write this 
>> messages:
>>     /dev/sdb1: size is 3906204687 sectors
>
> That's output from lvm2 - but you say your kernel only has lvm1 in it.
> You can't mix and match them like that: work out what you meant to
> run - lvm1 or lvm2.
>
> Alasdair
> -- 
> agk@redhat.com
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/