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Re: LMV2 boot from another Volume Group?



On Mon, Jul 27, 2009 at 10:46 AM, Tony
Nelson<tonynelson georgeanelson com> wrote:
> On 09-07-27 13:08:33, Aldo Foot wrote:
>> Not sure what you mean by "activate". The LVs are treated like any
>> other partition with its filesystem that it's checked at boot time.
>> There is no "switch" o turn LVs on and off, except for the entry in /
>> etc/fstab that looks for a device to check and mount according to
>> what you specify.
>
> This is wrong.  In order to use an LVM Logicial Volume, first a
> `vgscan` may be needed to make the Volume Groups known, and then the
> desired Logical Volumes must be Activated with `vgchange -ay`.  Only
> Available Logical Volumes can be mounted.

I stand corrected. Vgchange will activate the LVs making them visible
or not to the kernel.

~af


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