Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want defragment my root ext4 partition after upgrade to 10.10. But I can't find e4defrag in standart repos. May I build it from source? And is it safe for use?

UPD: Now in 12.04, we have e4defrag in repos. Just tried it, and it works well! I see some speed improvement. Simply run e4defrag /dev/sda1

share|improve this question
up vote 9 down vote accepted

According to one of its developers, Akira Fujita, e4defrag needs more feedback - which IMO translates to "not ready for prime time". I wouldn't use any defragmentation tool that's not thoroughly tested.

Here are some interesting slides from his recent talk at the LinuxCon 2010.

e4defrag is now in the development version of Ubuntu 12.04, see its man page for details.

share|improve this answer
Thanks for the info :) – Extender Nov 5 '10 at 3:40
Thanks! Is there any up-to-date information? Is there any source, where I can check on my own? Surprisingly Google coudln't answere this for me. – lumbric Dec 19 '11 at 13:33
Good link - but this answer should be updated, it's been in official repo for some time. – NoBugs Jul 26 '13 at 3:49

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.