Re: [xen-users] Resize lvm disk

[Dylan Martin <dmartin@xxxxxxxxxxxx>]

I think I actually made this work once, but it was really convoluted.

Basically, I had to have two separate LVs, one partitioned with /boot
and one not partitioned, whole thing was LVM.  I could resize the
underlying LV on dom0 and then in domU I could do a pvscan?.. or
something like that, to get LVM on domU to recognize the change.
Unfortunately, getting the kernel's copy of the partition info to
change was not easy.  I did so many iterations of "OK, try this..."
with LVM, kpartx etc.. that I couldn't tell you how I finally got it
to work.

Actually, I might have done all the resizing from insize dom0... 

Anyway, unless I'm just wrong and I didn't actually do this (a
possibility), it is possible.

Another option is to hot-add additional LVs to domU and then add them
to the LVM as additional PVs.  

-Dylan

> 
> ...without rebooting the domU or detaching/re-attaching the block
> device?
> 
> No; must resize the hard drive and reboot, the do the LVM stuff.
> 
> Joe.
> 
> 
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