[plug] Moving Running System to new HDD

[Ian Kent]

On Thu, 2006-12-07 at 20:45 +0900, Ian Kent wrote:
> On Wed, 2006-12-06 at 23:18 +0900, Patrick Coleman wrote:
> > On 12/6/06, Timothy White <weirdit at gmail.com> wrote:
> > > I have a system that I need to move to a new HDD.
> > <snip>
> > > What do people recommend as the best way to do this? Is it possible to
> > > do while the system is live?
> > 
> > I realise it's not much help to you right now, but it might be a good
> > idea to put LVM on the new drive so its easier to do this in future.
> > Under LVM, you can install a new drive, migrate / to it, and remove
> > the old drive in about four commands, and all without ever taking the
> > system down (assuming you can hotswap hdds). Very neat stuff.
> 
> Absolutely, LVM2 is a must these days.
> And if you don't have the hardware Linux software RAID performs well.
> 
> You do need to spend a bit of time to understand LVM though.
> I shrank my root disk the other day and made the logical volume one
> extent too small (smaller that the contained file system). So you need
> to understand the physical allocations and know which utilities put out
> the information you need when resizing.

And make sure you have bc installed or a pencil and paper or
something !!

Ian