Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have kernel*.32 and I use ext4 on my drive. Now I just don't know how to check if trim support is enabled?

Found this: http://blog.patshead.com/blog/2009/12/a-quick-and-dirty-wipersh-fix-for-intel-x25-m.html

share|improve this question
    
I recently also asked this question, and got a great answer from Janne Pikkarainen. superuser.com/questions/181238/… –  Yang Aug 27 '10 at 18:18
    
and this blog post really verifies: andyduffell.com/techblog/?p=852 –  M. Gao Oct 1 '11 at 3:58

2 Answers 2

The TRIM command has only been supported on Ext4 since kernel version 2.6.33. It is disabled by default (as it is slightly experimental), but can be enabled with the mount option "discard".

share|improve this answer

When calling 'mount' on the CLI you should get a response that looks similar to:

/dev/sdx on / type ext4 (rw,noatime,discard,errors=remount-ro,commit=0)

Note the discard option is present, which signifies the volume is mounted with the TRIM option.

share|improve this answer

Your Answer

 
discard

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.