Re: [Xen-users] Resize domU block device?

[Errol Neal <eneal@xxxxxxxxxxxxxxxxx>]

Quoting Ralf Müller <ralf@xxxxxxxx>:

> Is there a way for a domU to discover size changes of block
> devices modified by dom0?
>
> To make it clear - if I do in dom0 a lvresize of a logical volume given
> as physical disk to a domU, is there a way to use the new size
> of this device within the domU without reboot?
>
> Thanks
> Ralf
The domU will be aware of the additional space. How you take advantage  
of that is depending upon the filesystem and more importantly, the OS.  
For example, ext3 filesystems must be unmounted before you can resize  
them. You'll probably need to delete the partition, recreate it, using  
up all the free space you gave it. That is  , unless you use some of  
the other tools available. I'm talking about using sfdisk, fdisk or  
parted..
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