ext3 to ext4 ,how?

[Mark Haney]

ning luwen wrote:
> i use ubuntu 9.04 update from ubuntu 8.10,so the file system is ext3,is
> there any way change the partition mounted the / to ext4 without a totally
> new install?
> ps:my english is not good ,did i made my question clear enough?
>
>   
http://www.cyberciti.biz/tips/linux-convert-ext3-to-ext4-file-system.html

This is a good tutorial on how to do it.  My recommendation is, if 
you're a n00b or have any data you simply don't want to lose in random 
FS bugs, don't move to ext4. 

I've not had any trouble myself with ext4, but that doesn't mean you 
won't.  Two things I should reiterate. One, don't use on a production 
system unless you have reliable backups and downtime isn't an issue.
Two, don't upgrade the fs on /boot to ext4.  At least not yet. 



-- 
Mark Haney
mhaney at ercbroadband.org
Fedora release 9 (Sulphur)
 Kernel: 2.6.27.9-73.fc9.i686 GNU/Linux

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