LVM and copy to another system....

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LVM and copy to another system....

by nse :: Rate this Message:

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I have a Debian system running on my trusty TiBook.... but would like  
to move to a dual 450Mhz Mystic.....
I have an external disk mounted on the TiBook... which is cloned from  
the internal disk.....
I have tried to mount (as system/boot disk) the external disk on the  
Mystic.. but get an error with "no such volname /dev/mapper/
munin" (munin is the name of the TiBook) ....

What are the typical gotcha's for this ?? (which I undoubtedly have  
stumbled into.....)

kind regards

nse

"Ach, crivens, what a wee snotter....."

Quote from "The Wee Free Men" by Terry Pratchett


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Re: LVM and copy to another system....

by Stefan Monnier :: Rate this Message:

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> I have a Debian system running on my trusty TiBook.... but would like to
> move to a dual 450Mhz Mystic.....
> I have an external disk mounted on the TiBook... which is cloned from the
> internal disk.....
> I have tried to mount (as system/boot disk) the external disk on the
> Mystic.. but get an error with "no such volname /dev/mapper/ munin" (munin
> is the name of the TiBook) ....

> What are the typical gotcha's for this ?? (which I undoubtedly have stumbled
> into.....)

If you cloned the whole disk naively with `dd', then you probably bumped
into the fact that LVM partitions and volumes need to have unique UUIDs
(and names).  So as long as both disks are connected, you'll get
conflicts and LVM will only use one of the two disks.
Chek pvs, vgscan, ...


        Stefan


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