How to change "inode change time" of a file?

I tried to use

touch -d "2011-09-15 16:50" test.txt

but it just modifies the last access time and the last modified time.

Access: 2011-09-15 16:50:00.000000000 +0700
Modify: 2011-09-15 16:50:00.000000000 +0700 
Change: 2011-11-15 16:56:55.620124149 +0700

How to change the last change time?

I want to do this because my crontab uses filectime($file) to get the last changed time and I need to create a file of two months ago to test something.

Solution 1:

There is no general command to do this. However, depending on the filesystem and your administrator privileges, you can do it.

Here is an answer for the case of ext2/3 and possibly ext4.