Convert ext3 to ext4

[Matej Cepl]

On 2009-03-30, 01:31 GMT, Mario Chacon wrote:
> How can I do it with the / partition? It's mounted and with 
> a mounted unit I
> get this warning:
> WARNING!!!  Running e2fsck on a mounted filesystem may cause
> SEVERE filesystem damage.
> Is it possible to make it with the live cd alpha?

Use the installation CD/DVD/LiveCD/etc. and boot into Rescue 
mode. Then you have your system with your 
root-fs-when-really-booted being something else than /. Do 
changes there, and reboot. Check four times that /etc/fstab is 
correct.

Matěj