Super User is a question and answer site for computer enthusiasts and power users. 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 have some business to downgrade the kernel in Ubuntu 9.10.

I downgraded from kernel 2.6.31-14 to Then I got the following error in my boot process :

warning: unable to find a suitable fs in /proc/mounts, is it mounted?
use --subdomainfs to override

What does that mean anyway?


share|improve this question
My gut says that Ubuntu doesn't support kernel versions lower than what the distribution was designed for (it probably applies to other distros as well). Some program wants to use a kernel feature that is only in 2.6.31 (or anything higher than 2.6.26), so it will not work. – petersohn Apr 30 '10 at 9:46
Do you have any ext4 formatted partitions? – Josh Apr 30 '10 at 22:05

You must log in to answer this question.

Browse other questions tagged .